Utility February 2024 Digital Edition

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Issue #41, February 2024

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I SSU E 4 1

welcome

February 2024

FROM THE EDITOR

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elcome to the first issue of Utility Magazine for 2024.

With the festive season now behind us, we hope you had a restful break and are as excited to kick off the new year as we are.

As the deadline for net zero grows ever closer, the transition to renewable energy is front of mind, not just for the energy and gas sectors, but across the industry as a whole. The Australian Energy Market Operator (AEMO) released a draft of the 2024 Integrated System Plan (ISP), which outlines investment in an additional 10,000km of upgraded transmission and a tripling of grid-scale renewable generation as part of the recommended pathway to net zero.

Adding expected population growth and an increase in extreme weather conditions onto this, the energy sector is faced with a greater need than ever to secure the network for the future.

In this February issue, we hear from CitiPower General Manager, Renate Vogt, about the balancing act required to future-proof Australia’s energy network, and the innovation that will see us there.

When it comes to decarbonising the economy, green hydrogen is shaping up to be a key component in the energy transition. ARENA’s CEO, Darren Miller, shared his thoughts on Australia’s potential to become a renewable energy superpower, and how initiatives like the Hydrogen Headstart program allow us to tap into the country’s unique advantages to achieve this goal.

Over in the water sector, utilities are also seeing the potential offered by circular economy business models, with many pursuing a transition towards these practices. Up north, Urban Utilities has released its first sustainability report, which outlines its focus on responsible waste management. Down in Victoria,

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South East Water is investigating new technology that allows heavy metals to be removed from biosolids – maximising their potential for reuse.

As El Niño brings hotter, dry weather conditions, water security is also a pressing concern, particularly for remote communities. Power and Water Corporation shared its ongoing efforts to improve water services in the remote Laramba region, which was relying on groundwater with elevated levels of naturally-occurring uranium.

We also spoke with TasWater about its newly unveiled Bryn Estyn water treatment plant that is designed to shore up Hobart's drinking water supply, and delved into how Sydney Water is harnessing the power of hydrogen to reduce carbon emissions in a major construction project.

This edition also marks ten-years of Utility Magazine and to celebrate this exciting milestone, we journeyed back through time to the first ever issue that started it all and shared some highlights from the past decade that cemented Utility as the industry voice it is today.

I’d like to take this opportunity to thank our readers, contributors and advertisers for their support, both during 2023 and over the past decade, and I’m excited to see what’s in store for 2024.

Katie Livingston Editor

Drop Katie a line at katie.livingston@monkeymedia.net.au or feel free to call them on 03 9988 4950 to let them know what you think.

Don't forget to follow Utility Magazine on social media – find us on LinkedIn, Twitter and YouTube.

Utility Magazine acknowledges Aboriginal Traditional Owners of Country throughout Australia and pays respect to their cultures and Elders past, present and emerging.

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UTILITY • FEBRUARY 2024

Monkey Media Enterprises ABN: 36 426 734 954 C/- The Commons 36–38 Gipps St, Collingwood VIC 3066 P: (03) 9988 4950 monkeymedia.com.au info@monkeymedia.com.au utilitymagazine.com.au info@utilitymagazine.com.au ISSN: 2203-2797 Editor Katie Livingston Assistant Editor Steph Barker Journalists Stephanie Nestor, Tess Macallan, Kody Cook Design Manager Alejandro Molano Senior Designer Luke Martin Designer Danielle Harris National Media Executives Rima Munafo, Brett Thompson, Ryan Sheehan Marketing Manager Radhika Sud Marketing Associates James Holgate, Rhys Dawes, Bella Predika, Digital Marketing Assistant Emily Gray Publisher Chris Bland Managing Editor Laura Harvey

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CONTENTS

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I N DUST RY INSIGH TS

WATER O P E R AT I O N S A N D T R E AT M E N T

Ten years of Utility Magazine ������ 28

How digital asset management can minimise risk and maximise compliance ������������������40

How pressure transient monitoring benefits water supply networks ����������������������������52

Transforming water quality in remote regions of the Northern Territory �����������������������������������������42

Studying aircon water waste with digital meter data ��������������������������54

Improving Sydney Water’s asset maintenance with data-led solutions ���������������������������������������� 30 Spotlight on sustainability: new report from Urban Utilities ���������� 32 Horizontal directional drilling: what’s in it for utilities? ���������������� 34 A unified approach: technology trials simplified for Industry 4.0 success ������������������������������������������ 37 Modelling underground utilities for proactive risk management ��������� 38

Modular and compact drinking water monitoring systems �����������44 From trash to treasure: turning wastewater sludge into valuable resources ���������������������������������������46 The Bryn Estyn project: securing Hobart’s water supply �������������������48 Helping councils navigate new waters in regulations ��������������������50

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C USTOM E R E XP E R I E N C E

Moving to net zero: Australia’s first portable hydrogen SAPS ���� 88

Straight from the customers’ mouths ���������������������� 98

Microgrid, macro impact: the Kioloa community microgrid installation project ����������������������� 90

With different sizes, budgets and an array of essential services on offer, it’s normal for utilities and industry organisations to have differing company priorities. In spite of this, a common theme that is shared across the industry is a focus on customer experience and satisfaction.

UTILITY • FEBRUARY 2024

A trusted partner in water solutions and innovations ������������58 Improving communities through access to water �����������������������������60 Best practices for sodium hypochlorite in water treatment ���������������������������������������62 Going with the flow…meter ��������64

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DISTRIBUTED GENERATION

Building on sustainable practices: hydrogen power in construction ����������������������������� 94

Reducing risk during pipe network maintenance ����������������������������������56

102 How accurate is a typical HDD pipeline installation? ������������������102 Horizontal directional drilling (HDD) is a fantastic method for pipeline installation: it’s trenchless and non-invasive, with minimal impacts on the surrounding environment and community. One common question is how accurate can a typical HDD pipeline installation be? In this article, we take a look at the levels of accuracy in HDD and what factors can impact upon HDD accuracy.

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ISSUE 41

February 2024

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CYBE R SE CURITY

ENERG Y N E TWO R K S

S E W E R R E HAB I LI TAT I O N

Meeting digital demands with advanced cyber security model ����������������������������� 66

Australia’s path to renewable energy superpower �����������������������74

Upgrading Barwon Water’s sewer network for environmental protection ����������� 82

King Island: a blueprint for Australia’s clean energy future ���� 68

When it comes to decarbonising the economy, Australia has the potential to punch above its weight to become a renewable energy superpower. Achieving this will require significant investment into the industries of tomorrow.

The power of biosolids: from landfill to renewable energy hub ����������������������������������� 70

EV DBs and EV load management systems: what you need to know ����������������������������������������� 78

Empowering Australia's solar revolution ���������������������������� 72

Balancing act: future-proofing Australia’s electricity network ����� 80

SOL AR

In an effort to extend the lifespan of its pipelines and protect the environment from harmful spills, Barwon Water is investing $50 million over the next five years on upgrades and repairs to its sewer system, spanning Geelong, the Colac Otway Shire, Surf Coast, and the Bellarine.

Pipeline Plant Hire riding crest of water industry wave with VacLift ����������������������������������� 86

In each issue Welcome from the Editor �������������������������������������������������������������������������������������������������������������2 A word from Energy Networks Australia �����������������������������������������������������������������������������������6 A word from WSAA �����������������������������������������������������������������������������������������������������������������������8 News briefs...................................................................................................................................10 Advertisers’ index �������������������������������������������������������������������������������������������������������������������� 104 Editorial schedule �������������������������������������������������������������������������������������������������������������������� 104

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A WORD FROM ENERGY NETWORKS AUSTRALIA

A SHARP FOCUS FOR ENA IN 2024 Energy Networks Australia reflects on 2023 and looks forward to continuing to work towards solutions that drive the decarbonisation of Australia’s energy system in 2024.

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s Australians look to embrace a cleaner future, 2023 was certainly a year of progress for the transition. In 2023, our nation saw a 200 per cent increase in electric vehicle sales, another record-breaking year in solar PV installations, and, on October 24 our grid peaked at 72.1 percent renewable energy.

Australia’s electricity and gas networks are collectively working to deliver a whole system energy transition for customers, with an acute focus on how to decarbonise our system at least cost. While this sentiment is supported across all energy businesses, it does present challenges that need innovative, technical solutions and an industry and government working hand in hand.

ENA MEMBERS DRIVING THE TRANSITION Many significant milestones for our nation’s energy transition were delivered in 2023.

After cutting the ribbon on the first stage of 800MW of new transfer capacity into the National Electricity Market (NEM) in December 2023, Electranet in South Australia is ready to start the commissioning phase of Project EnergyConnect. Extensive planning, development and consultation to bring the project to life is well underway and means a big 2024 is on the cards for the NEM. When it comes to storage, it is safe to say that more than any year before it, 2023 was the year that drove a real increase in community batteries.

Many Energy Networks members have installed and are trialling and operating community battery storage solutions in several ways. This allows innovative testing to define how to store and increase the amount of renewable energy in local neighbourhoods, while also supporting power quality and voltage in local areas, allowing for

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increased rooftop solar systems and charging of electric vehicles.

When it comes to gas, no matter what side of the debate you fall on, it cannot be ignored that renewable gas will be needed to decarbonise Australia’s economy, especially for industry and areas that are impossible to abate (or too expensive to electrify).

KPMG completed a report for Energy Networks Australia to outline a policy pathway for renewable gas. The report aims to support and encourage the development of a range of policies to facilitate a stronger renewable gas market.

Renewable gas certification schemes and targets can drive the transition in gas markets. Good progress was made this year in renewable gas certification and these schemes should continue to be developed in 2024 and beyond to broaden renewable gas supply.

ENA LEADERSHIP THROUGH THE TRANSITION Energy Networks Australia’s new CEO, Dominique van den Berg (appointed in May 2023) is driving a united, whole of system agenda for members. This agenda includes a sharpened focus on solutions for social licence outcomes, unlocking opportunities on distribution networks that improve services for customers, and encouraging the development of rational policy that provides solutions for hard to abate (or impossible to electrify) industries.

Dom’s passion for a fair and just transition, expertise, and deep understanding across the sector are setting the foundations for a strong advocacy platform in 2024 and beyond.

This platform is supported by Energy Networks Australia’s new chair for a two-year period, John Cleland, CEO of Essential Energy. John brings a wealth of leadership and experience to the role and together with the board is supporting the delivery of policy

UTILITY • FEBRUARY 2024

settings that offer the best energy network services to customers, protect and support vulnerable customers and set Australia on a path to net zero in a sound and pragmatic way.

In Canberra in November, following a full day workshop of member CEO’s, Energy Networks Australia hosted dinner with the Hon. Minister Chris Bowen to share this agenda for 2024 and beyond, highlighting the challenges and opportunities for the sector. The Minister spoke on how the energy transition is tracking nation-wide and gave a commitment to continue to work closely with ENA and its members, on getting the right balance of policy and legislation that supports the transition.

WHAT’S ON IN 2024 Energy Networks Australia looks forward to kicking off the first quarter of the year with the bi-annual Energy Networks Conference and Exhibition 2024, in beautiful Adelaide from 19–21 March.

The event features an impressive line-up of national and international experts, coupled with the industry’s best networking events across a jam-packed three-day program.

The experience starts with an immersive exploration of South Australia's energy sector via a dedicated delegate tour to key locations like the SA Power Networks Innovation Centre, Tonsley District, Hydrogen Park SA and the Adelaide Desalination Plant. This tour showcases the region's leadership in energy innovation and sustainability.

Opening with South Australian Premier, Peter Malinauskas, delegates will then spend two days hearing from and engaging with experts from across the globe. Highlight speakers include: Ruby Heard from Alinga Energy Consulting who is a beacon of progress in the First Nations Clean Energy Network. Her work exemplifies a

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harmonious blend of sustainable energy solutions and deep respect for indigenous knowledge and perspectives, setting a new standard for inclusive energy practices.

Laura Sandys, a leading advocate of building a more productive and efficient economy, a promoter of greater demand production policies placing consumers at the heart of markets, and an innovator in food policy. Working on the UK Energy Data Taskforce, Laura is involved in identifying new technological opportunities and learning from small companies with new ideas.

She was appointed Commander of the Order of the British Empire (CBE) in the 2020 New Year Honours for services to UK energy policy as chair of the Energy Data Taskforce.

Oxana Dankova, Global Leader Energy Networks, Boston Consulting Group brings a further global perspective on revolutionising energy network strategies. Her expertise in navigating complex energy markets and

JOHN CLELAND, THE HON. MINISTER CHRIS BOWEN, DOM VAN DEN BERG.

her foresight in emerging energy trends make her a formidable thought leader in the sector.

The event also includes an array of social and networking activities brought to delegates thanks to the incredible sponsors including Hitachi Energy, BCG and Schneider Electric.

This conference is the only energy conference in Australia run by the industry for the industry. It is expected to attract more than 900 delegates from across the sector, at a time when collaboration and innovation are more important than ever before.

www.energynetworks.eventsair.com/en2024-conference-exhibition/

UTILITY • FEBRUARY 2024

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A WORD FROM WSAA – UNDERSTANDING EFFICIENCY SECT ION

Efficiency has always been top of mind for customers and drives perceptions on whether a water utility delivers value for money. However, efficiency means different things to different people – even employees within the same organisation. Efficiency is often mistakenly thought of as simply cutting services and resources, but what it actually means is delivering customer value.

lead to misconceptions, such as assuming efficiency means prices need to be flat or declining, or that efficiency is about cutting costs to the minimum. However, cost minimisation is not an appropriate objective, as it may not be consistent with providing the services customers want, maintaining and investing in asset capability and supply resilience, or delivering broader outcomes desired by customers or society. Economic efficiency should be seen as synonymous with value for money — providing the services customers want at the lowest long-term cost.

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n June 2023, WSAA released the Understanding Efficiency report. This comprehensive report was commissioned with Frontier Economics to explain the concepts of ‘efficiency’ in plain English. It also explains how these concepts are used within businesses, by economic regulators and others to assess service and expenditure proposals in pricing submissions and business cases. The report illustrates what efficiency looks like under different scenarios using examples and detailed case studies from the water and energy sectors.

The 84-page report also explores the common definition of efficiency, which tends to focus on the relationship between inputs and outputs. This narrow interpretation may

PUTTING EFFICIENCY INTO PRACTICE To demonstrate efficiency, WSAA recommends that regulators, businesses and other water sector groups focus on customers' long-term interests and consider both prudency and efficiency of expenditure while developing a narrative that explains the link between expenditure and outcomes for customers. All expenditure proposals should adopt a business case (or cost-benefit analysis) approach. There is no single methodology or technique that is appropriate to use in all circumstances. The appropriate approach may vary depending on factors such as the nature of the expenditure.

The report examines a few recent regulatory reviews and decisions by state economic regulators, providing a number of key insights and lessons that can be drawn upon for future periods. It also identifies some overarching guiding principles that should be adopted to demonstrate the efficiency of expenditure proposals regardless of the context in which efficiency is being measured or demonstrated.

To read the Understanding Efficiency report, visit www.wsaa.asn.au/publication/understanding-efficiency

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UTILITY • FEBRUARY 2024

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he Victorian Government released plans for the offshore wind implementation on 15 December 2023, which outlines the next stage of development for the state’s offshore wind industry.

The government has set targets of at least 2G of offshore wind energy generation by 2032, 4GW by 2035 and 9GW by 2040.

Implementation Statement 3 outlines the parameters for the proposed support package for the first tranche of offshore wind projects in Victoria – giving industry the certainty and confidence they need to establish their operations locally.

This will be run through a competitive auction process to be rolled out in 2025 with contracts awarded in 2026.

The Statement also provides an update on VicGrid’s approach to the coordination of transmission using its Options Assessment Method that has been developed in consultation with landholders, communities and stakeholders.

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The Statement outlines workforce opportunities across all stages of offshore wind farm development, meaning jobs for Victorians in trade professions, engineering, administrative and other roles.

Victoria also has the potential to support and facilitate the establishment of the offshore wind industry at several ports in addition to the Victorian Renewable Energy Terminal at the Port of Hastings.

A fit-for-purpose regulatory framework is also being developed to support the sector to ensure the environment is protected as the sector grows. Existing frameworks to protect the marine and coastal environments will apply, and information products and tools are being developed to specifically support planning for offshore wind energy.

The Statement outlines a competitive procurement process to maximise local content while adapting requirements to reflect the early stages of the sector’s development in Australia.

In order to maximise opportunities for local industry development and local jobs, the Victorian Government will also establish the Renewable Jobs Taskforce, which will coordinate industry engagement and participation across offshore wind projects. The taskforce will include representatives from unions, industry associations, businesses and community.

Victorian Minister for Energy, Lily D’Ambrosio said Victoria’s offshore wind targets will be critical in leading Victoria through the renewable energy transition as it builds the significant capacity urgently needed to replace closing coal-fired power stations.

“We’re taking industry and community with us every step of the way through rigorous consultation, ensuring we achieve the best outcomes for our state, as global businesses compete for a slice of Victoria’s world class wind energy resources,” Ms D’Ambrosio said.

Victorian Acting Minister for Jobs and Industry, Colin Brooks, said that Victoria is positioned to be Australia’s offshore

wind powerhouse and it is focused on ensuring local industry and workers will benefit.

Victorian Minister for Ports and Freight, Melissa Horne, said, “Local ports will play a critical role in supporting the offshore wind sector, with several ports across Victoria offering ideal locations to set up operational bases for offshore wind projects.”

Gunaikurnai Land and Waters Aboriginal CEO, Daniel Miller, said, “Recognising the impact on our First Peoples, the Statement outlines the Victorian Government’s continued commitment to meaningful steps toward self-determination and supporting the Gunaikurnai Land and Waters Aboriginal Corporation’s aspirations for mutually beneficial agreements with offshore wind developers.”

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WA GOV TO INVEST $2.8 BILLION IN NEW DESALINATION PLANT

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he Western Australia State Government has announced it will provide $2.8 billion to secure the Alkimos Seawater Desalination Plant, Perth’s next major source of drinking water.

Site works have now begun at the location for the future 100-billion-litre seawater desalination plant, heralding a significant milestone in its delivery.

The new plant, supported using the state budget surplus, is set to be the third of its kind in Western Australia, and will be adjacent to an existing wastewater treatment plant on land that is to become known as the Alkimos Water Precinct.

Georgiou Group has been awarded a $29.8 million contract to prepare the site for construction, with early works to include sinking of the site into the landscape and extending a large, vegetated sand dune to shield the plant from view and create a noise buffer.

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UTILITY • FEBRUARY 2024

The entire contract value will be spent locally, with almost $13 million directed to Western Australia subcontractors and 14 per cent spent with Aboriginal businesses.

Around 70 local jobs will be created, including opportunities for apprentices and trainees.

The Alkimos Seawater Desalination Plant will support long-term water security for more than 2.5 million Western Australians who receive drinking water through the Integrated Water Supply Scheme.

The plant will have net zero greenhouse gas emissions during construction and operation, and will allow Water Corporation to reduce its groundwater allocation by 30 billion litres a year – helping to preserve healthy wetlands, parks, forests and public open spaces in Perth’s north.

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The project has received environmental approval from state and federal regulators, as well as from an independent development assessment panel.

A contract to design, construct, and operate the plant will be awarded in early 2024, with the first 50-billion-litre stage scheduled for completion in 2028.

Western Australia Premier, Roger Cook, said, “This is a significant milestone for a project that is crucial to the long-term water security of more than 2.5 million Western Australians.

“Western Australia was the first state to introduce largescale desalination and continues to be a world leader in the delivery of climate-resilient water sources.

“The Alkimos Seawater Desalination Plant will help to secure long-term drinking water, support our economy, reduce dependence on groundwater, and meet the needs of our state’s growing population.

“This is an important project for our government and crucial for the long-term water security of Western Australians, reflecting the government’s $2.8 billion commitment toward this priority project.”

Western Australia Minister for Water, Simone McGurk, said, “The site of Perth’s next major water source will begin to take shape, marking the early stages of this significant project for our growing city.

“We’re feeling the effects of climate change right now – it doesn’t rain in Perth like it once did.

“Where we used to receive an average 420 billion litres of rainfall into Perth dams annually, today it is less than 70 billion litres.

“Unlike other global cities that are facing significant water supply challenges, Perth has acted to ensure our water supply network is more resilient to the impacts of climate change.

“This project has been carefully designed to integrate into the surrounding landscape and, importantly, will have net zero greenhouse gas emissions during construction and throughout operation.”

Western Australia Member for Butler, John Quigley, said, “This is a huge project for Alkimos and Perth’s north, with site works alone set to create around 70 local jobs and benefit local businesses.

“It is a forward-thinking and innovative project that has been carefully designed with the protection of the surrounding environment and local community expectations in mind.”

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N EWS | Sponsored editorial

GAINING INSIGHTS INTO CRITICAL UTILITY ASSETS Non-destructive testing equipment refers to an array of inspection techniques that allow operators to gain information about an asset, system or component without damaging it. In the utility industry, non-destructive testing equipment is regularly used to provide valuable insights into critical infrastructure when treading carefully is of the utmost importance.

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hen it comes to inspection, testing and non-destructive testing (NDT) equipment, Russell Fraser Sales has got it covered.

For the last 30 years Russell Fraser Sales has been supplying the oil & gas, mining, marine surveying, engineering and aerospace industries with NDT and inspection equipment.

In the areas of crack testing, hardness testing, ultrasonic thickness measurement, infrared thermography and visual inspection, RFS has solutions. More recently, Coltraco UK’s flow meters and Portascanner Airtight leak detection systems and tank level measuring instruments have been added to the range of equipment supplied.

During COVID, the Portascanner Airtight room integrity testing tool was developed in order to ensure that no leaks of air from negatively pressurised COVID wards could escape into the hospital’s other departments and allow infection to spread. This system also

has applications in being able to check the seals in buildings and hatches to ensure maximum efficiency in heating, cooling and sealing, by checking seals in doors, windows and other areas.

In a world where we are aiming for maximum efficiency and savings of energy, the Portascanner Airtight system is a major asset. Not only does this system detect leaks, it also has a camera which shows the location of the leak. In a world where the aim is net zero, every energy saving is important and saves money at the same time.

When it comes to looking inside tanks, pipes and machines, Mitcorp and Foretec Borescopes have probes from 3.9 to 90mm in diameter with flexible and rigid formats. These give high resolution images and videos for inspection purposes. Most of the probes are IP67 rated which makes them submersible in water and oils.

HIKMICRO have a range of infrared thermography cameras from pocket size to very high resolution with an

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option to suit a range of budgets.

Often in the field an operator can use a lower cost instrument to collect basic data, and if needed, a fully trained and skilled technician can do further analysis. These are used for switchboard temperature inspection, bearings, and for temperature analysis of pipelines and tanks.

It is important that the correct instrument and technique is applied to every inspection, and the team at Russell Fraser Sales are always ready to give guidance to the best and most cost effective technique for the job at hand. The team at RFS have backgrounds in engineering, science and metallurgy in order to help customers with their inspection needs.

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WMWater has announced it will extend its sewerage network to Green Hill Lake, east of Ararat, in order to service a new residential development in the area.

A tender has been awarded to S&R Engineering and Construction for the construction of a gravity sewer main to service the new estate.

GWMWater Managing Director, Mark Williams, said the construction of the gravity sewer will not only service the immediate development, but could also command adjacent land that has been earmarked for further residential development.

“The gravity sewer is a solution that was agreed with the developer and will provide the most cost-effective long-term solution,” Mr Williams said.

156ha of farmland was re-zoned to ‘General Residential’ in the Green Hill Lake area in 2013 and a reticulated sewerage system was required for the proposed development.

At the same time, GWMWater was undertaking a sewerage augmentation project in Ararat to address challenges

with sewer capacity in the Alfred Street area during high intensity rainfall events.

GWMWater was alerted to the proposed development by Ararat Rural City Council and was able to build a new pump station at Heath Street, further east.

This was completed in 2016, in anticipation that the Green Hill Lake development would progress.

“To address both issues, GWMWater decided to redirect Alfred Street sewer flows to a new pump station at Heath Street in Ararat. This pump station was designed to have sufficient capacity and depth to service the Green Hill Lake development by gravity,” Mr Williams said.

Works for the project are expected to be complete by mid-2024.

“Investing in our sewerage infrastructure is important to ensure the liveability of our communities for generations to come,” Mr Williams said.

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N EWS | Sponsored editorial

The power of

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mong centrifugal compressors and blowers, single stage solutions are on average 20–29 per cent more efficient than multistage. This is because – as the name suggests – multistage machines achieve the required pressure in multiple stages widening the opportunity for leakage, whereas single stage machines achieve this in a single step.

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MAXIMISING EFFICIENCY The NTT blower functions with a two-point control system, regulating airflow and keeping the compressor operating at the optimum efficiency with fluctuating suction pressures and temperatures. This allows the blower to work without use of blow-off valves during normal operation unless specifically designed to do so. The valve is used only during start and stop, due to the exceptional turndown, so energy is not wasted.

The NTT single stage blower is on average 20–40 per cent more efficient than positive displacement blowers.

Putting this into perspective, for a blower of 10,600m³/h operating at

UTILITY • FEBRUARY 2024

42kPa(G) the electric motor of an NTT blower will be 50kW smaller compared to a PD blower, which is equivalent to up to $85,000 in energy savings per year.

Compared to highspeed direct driven turbo technologies (air bearing and magnetic bearing), the NTT blower’s life expectancy is up to three times longer and lifecycle costs are projected to be 13–23 per cent lower within ten years of operation. In addition, the NTT blowers do not require harmonic distortion mitigation to meet the requirements of AS/NZ61000.3.6, meaning there are no additional costs or efficiency losses associated with installation and operation of the harmonic filters necessary for highspeed turbo technologies.

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N EWS

QLD GOV REVEALS NEW EMISSIONS REDUCTION TARGET

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ueensland Government has unveiled a plan to legislate a new emissions reduction target of 75 per cent by 2035.

Queensland Premier, Steven Miles, said 75 per cent by 2035 is an achievable target that will support industry growth, attract greater investment in renewables and generate lasting benefits, especially in regional areas, and will also provide Queenslanders with greater access to cheaper, cleaner energy.

The government said the move to legislate the new target will ensure Queensland can capitalise on new energy and investment opportunities, while keeping energy assets in the hands of Queenslanders and driving the creation of good jobs in the industries of the future.

The 75 per cent target supports the work set out in the Queensland Climate Action Plan and Queensland Energy and Jobs Plan, which map the state’s pathway to net zero by 2050.

Queensland is on track to exceed its 2030 target for emissions reductions, with levels already at 29 per cent lower than those from 2005.

The legislation will also seek to establish an expert panel to set a pathway to net zero and five yearly targets until 2050, with annual progress reporting to Parliament.

Queensland is already exposed to severe weather, from droughts, to floods, cyclones and bushfires, which the government said could increase in severity without emissions reduction measures.

Key management

“By legislating this target we are making a very clear statement to the world that Queensland is the place to do business if you’re looking to use clean energy to create prosperity.

“Our commitment will help drive a new wave of low carbon economic growth and investment across Queensland, particularly in the regions where we are already an industrial powerhouse.

“This announcement is only possible because of the landmark Queensland Energy and Jobs plan, which will see 80 per cent of our energy generated by renewables in 2035.

Deputy Premier and Minister for Trade and Investment, Cameron Dick, said, “75 by 35 creates investment certainty for industry and lays the foundation for our transition to a stronger decarbonised economy.

“The Queensland Energy and Jobs Plan is the most comprehensive blueprint of its kind in Australia.

“It allows us to utilise our abundant sun and wind to allow Queensland to become the natural home for more heavy, low emissions industries.

“As Australia’s most carbon-intensive economy, Queensland has a vital role to play in reducing emissions, and all levels of government will need to play their part,” Mr Dick said.

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N EWS | Sponsored editorial

UNEARTHING THE LATEST INNOVATIONS

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N EWS

SYDNEY WATER SHARES RESULTS OF SMART METER ROLLOUT

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ydney Water has rolled out a $2 million pilot smart meter program, which has already reduced the average bill by $70 for residents across Liverpool, Beecroft, Bellevue Hill and Kenthurst, where 7,500 smart meters were installed.

Residents saved 28,000L of water between April and November 2023 after Sydney Water sent 313 early leak detection notifications.

Sydney Water’s Head of Customer Metering and Accounts, Jason Dagger, said that this multi-million dollar initiative is a transformational project for Sydney Water with smart meters using the same technology as a mobile phone to send data.

“Residents with a smart meter are notified of any potential leak within their property via an SMS, phone call or email from Sydney Water informing them of the leak and offering support to fix it,” Mr Dagger said.

“This minimises the impact on their water bill, and as a result, we can already see significant customer savings.

“With a long, hot summer ahead of us, we are urging customers to be mindful of water waste in and around the home.

“We need to start acting now, and this is something we can do to help our customers save even more water.”

Sydney Water plans to expand the smart meter program, allowing more customers to benefit from this service.

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UTILITY • FEBRUARY 2024

In 2024, Sydney Water plans to continue to invest in smart meters, installing another 25,000 across residential properties, with more expected to be installed in the coming years.

“We plan to install a smart meter in every property within our area of operations. It will be the largest rollout of smart meters in Australia once completed,” Mr Dagger said.

Sydney Water considers leaks and water network issues in the local area, the condition of the existing mechanical meters and the cost to read the meters when deciding where to install these smart meters.

Smart meters have been a requirement for all high-rise residential buildings with more than two stories since 2014.

This accounts for around 140,000 smart meters across Sydney.

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N EWS

TREE ROOTS TURN

ADELAIDE SEWERS UPSIDE DOWN Following a report of a substantial blockage in its Modbury sewer network, investigating SA Water crews discovered a record breaking, half-tonne tree root mass growing inside the pipes.

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hey’re the bane of sewer network operators across Australia, yet they’re fundamental to all living things.

Trees, and their extensive root systems, are the leading cause of sewer blockages within SA Water’s 9,000km pipe network, making up around 60 per cent of all blockages that the utility records each year.

While most tree roots form small clusters that can be cleared from a sewer pipe conventionally by a jet rodder, a particular gum tree in Adelaide’s north-eastern suburb of Modbury was determined to break size records.

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PORTAL TO ANOTHER WORLD, OR GUM TREE TAKEOVER? In order to prevent potential community interruption and sewage overflows, a giant half-tonne tree root mass had to be removed from Modbury’s sewers.

The tree was found growing inside a five-kilometre-long, 675mm diameter sewerage pipe that travels beneath suburban streets and reserves between Bridge Road in Walkley Heights and Kelly Road in Para Vista – where there is a large number of trees in the area.

During a 30-minute period, SA Water’s crews carefully attached several lifting slings to the cluster’s main roots, before fixing them to an excavator’s arm, which guided the mass out of the concrete sewer chamber.

SA Water’s Senior Manager of Field Operations, Colin Bell, said other sections along the pipe also had extreme root intrusion, while some yielded around 200kg of wet wipes.

“Our crews were convinced they entered an episode of Stranger Things

UTILITY • FEBRUARY 2024

after making the discovery!” Mr Bell said.

“We were first alerted to the potential invasion after a substantial blockage occurred in another section of pipe within Walkley Heights, when we discovered what appeared to be a tree literally growing inside the sewers.

“Typically, areas in the foothills or surrounded by natural spaces experience a higher number of blockages, due to tree roots breaking into pipes in search of water and blocking the flow of sewage to our treatment plants.

“On the day of removing the mass, we had to carefully cut a few of the larger roots at the point where they had entered the chamber to free it from the root network without harming the culprit gum tree – which was located about 10m away.

“The sheer weight of the root mass in Modbury meant we needed the help of our excavator to safely pull the cluster out of the chamber – with our crews achieving this in one clean attempt, which was a great feat!

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N E WS

“Weighing in at around half a tonne and measuring 5m in length, we also needed to break it down into smaller pieces of roots to transport and dispose of it at our Bolivar plant.

“A significant amount of behind-thescenes work went into preparing for this job, with our investigations along the pipe finding that several other sections were impacted by tree roots and at risk of further blockages.

“To reduce the risk of blockages downstream when removing the mass, our crews proactively cleaned around 500m of this part of pipe every night over a number of weeks, working in the early hours of the morning to reduce any potential disruption to the community and take advantage of lower flows in the network.

“Our cleaning also yielded a few more surprises, such as 200kg of wet wipes and several metres of rope, serving as a timely reminder to the community to consider what they’re flushing down the toilet.”

KEEPING TREE ROOTS AT BAY In search of water, thirsty fine hair roots seek out and penetrate cracks or joints in underground pipes.

Occasionally, the force from larger, thicker roots can even crack previously sound pipes and allow the root to enter the pipe itself.

Once roots have entered a pipe, they grow quickly and if they form a blockage, this can lead to overflows from sewer inspection plates, relief points, and even inside a property’s kitchen, bathroom or laundry.

Mr Bell said the utility continues to invest in a range of preventative measures to reduce the risk of blockages caused by tree roots.

“One of these initiatives includes our proactive sewer cleaning program, which targets hotspot suburbs across Adelaide,” he said.

“As part of the cleaning program, our crews deploy jet rodders, which are hoses operated at a high pressure and use the power of water to dislodge and cut through blockages.

“Once this is complete, they perform CCTV inspections to assess the impact of the cleaning and structural integrity of the sewer main.

“We continually track sewer overflows to identify the worst performing suburbs, especially where it’s resulted in sewage entering the environment, such as a creek or reserve which often includes Adelaide’s eastern suburbs.

“We’re also piloting the use of tree root barriers, which are a layer of highdensity plastic liner made from 100 per cent reused material.

“It involves digging an environmentally-friendly barrier

UTILITY • FEBRUARY 2024

around the base of a tree using hydro vac excavation and a root sawing method – causing minimal disturbance to the tree itself, while preventing the growth of thirsty roots towards nearby sewer connections.

“The community is also now able to access our Healthy Pipes online tool, which helps people find the location of our underground pipes on or near their property, to plant the right tree in the right place and limit the risk of tree root intrusion.”

WWW.UTILITYMAGAZINE.COM.AU

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I N DUST RY INS IGH TS

TEN YEARS OF UTILITY MAGAZINE

The very first issue of Utility Magazine was published in February 2014, but the idea for the magazine came about years earlier, when publisher, Chris Bland, saw a need for a publication that connected utilities from across the water, energy, gas and telecommunications sectors, and allowed them to share knowledge across their diverse fields. Here we explore the journey of Utility over the past ten years, and delve into how it became the go-to publication that it is today.

A

lthough there was strong communication within sectors, Chris noticed that there wasn’t a lot of opportunity for utilities from different industries to share knowledge with each other. With this idea in mind, he started researching what it is that binds Australia’s utilities together, and what each sector could offer the others.

The next task was to identify and build a readership. Chris went about the task of reaching out to key players at all of the utilities around Australia so that they would all receive a copy of the magazine, either in print, online, or both, when the first issue was published.

However, to ensure that Utility could deliver on its promise to be a voice for the industry, it was important that the

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UTILITY • FEBRUARY 2024

magazine didn’t just go to the right people, but that the content was relevant to them.

Chris sought out the key issues that Australian utilities were interested in, and invested the time and effort into creating high quality content that was based around the current events and problems that they were faced with.

The very first issue of Utility included interviews with Sydney Water’s then Managing Director, Kevin Young, and former Jemena Managing Director, Paul Adams, as well as contributions from utilities across all states and sectors, including Ergon Energy, nbn, Western Power and Yarra Valley Water.

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I N D U ST RY I N SI G HT S

When that initial edition reached its audience of industry professionals, its immediate success exceeded even Chris’ expectations. Today, Utility has cemented itself as the voice that the industry turns to for thought-leading content, reaching more than 70,000 readers across our print, e-newsletter, website and social media channels each quarter.

To maximise reach and knowledge sharing of each edition, and to ensure that we’re constantly in the know about pressing issues, the Utility team make a point of attending all of the major industry events every year, including WIOA, OzWater, Energy Networks, Australian Energy Week, Smart Energy Conference and Exhibition. The opportunity that the events provide to learn from leaders in the industry and connect with our readers and advertisers in person is something that we value highly.

As the industry shifted, and the conversation turned towards technology and impact that it was having on the industry, Chris once again saw a real need for a space where utilities can come together and share the challenges and opportunities of digitisation.

In 2018, the Digital Utilities event was launched, bringing together a program of experts to share their knowledge and discuss how they grappled with the challenges of modernising existing networks, work practices and customer interactions. The conference was a success, and was held again in 2019.

A week ahead of the scheduled 2020 event, the COVID lockdowns struck, and the team had to work quickly to transform Digital Utilities into a virtual conference, a format which was then continued in 2021 and 2022.

Throughout the turbulence of 2020, the support of Utility’s readers and advertisers underscored both the value of the magazine and of the sector itself, and really showcased just how important a role the industry plays.

“I can’t stress enough just how much we appreciate the ongoing support that our readers, contributors and advertisers have shown us over the years, particularly during the COVID19 pandemic,” Chris said.

“While the utility sector perhaps isn’t the most glamorous of industries, the unprecedented circumstances of 2020 really showcased the criticality of the essential services they provide, and just how important the work undertaken by everyone in the sector is.”

As the company grew and Monkey Media embraced new opportunities, Chris handed over the editor reins to Charlotte Pordage in August 2018, who became well-known in the industry until she moved on from the role in November 2021, passing the torch to Jessica Dickers.

I took over Utility as editor in 2023, and I’m excited to continue to build on the brand that the previous editors have worked tirelessly to create.

Over the past ten years Monkey Media has launched a number of new magazines, including Infrastructure, Energy, Council and Mining, and of course its founding title, Pump Industry. However Utility remains the largest, and most widely read of its titles.

We’ve also expanded our offerings and now act as a full marketing agency for a number of companies in the industry helping to manage their marketing and create unique content, custom newsletters and social campaigns websites and more.

A huge thank you to all our readers, contributors and advertisers for their support over the past ten years, and we look forward to continuing to provide the best possible content, from the most qualified experts in the utility space for another ten and beyond.

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I N DUST RY INS IGH TS | Sponsored editorial

IMPROVING SYDNEY WATER’S ASSET MAINTENANCE WITH DATA-LED SOLUTIONS

By Gregg McCallum, Utilities Enterprise Manager, Nearmap

Sydney Water, Australia’s largest water utility, is streamlining its asset maintenance processes and improving efficiencies across its complex waste and water networks, with help from innovative digital solutions.

F

rom proactively identifying and scheduling repair needs and resolving customer complaints, to ensuring compliance with regulations — Sydney Water delivers its services safely and reliably via an integrated, dataled solution.

IMPROVING CUSTOMER OUTCOMES Realising the potential for geospatial intelligence to help improve customer outcomes, Sydney Water integrated Nearmap content into its Spatial Hub — a platform built in-house as part of an internal shift towards focusing on proactive customer service.

With Nearmap’s high-resolution, aerial imagery frequently updated within Spatial Hub, Sydney Water can also access and manage real-time and historical data from various sources, such as geographic information systems (GIS), supervisory control and data acquisition (SCADA) systems, customer relationship management (CRM) platforms, and the internet of things. This empowers detailed and accurate spatial analysis and visualisation of specific locations, which in turn improves planning and completion of maintenance and repair jobs.

For example, when a sensor alarm is triggered, Sydney Water can use Nearmap to quickly locate the asset, zoom in to inspect its condition, and compare it with previous images to identify any changes or anomalies. This helps the utility diagnose the problem, prioritise the response, identify

entry points and measure site clearances, and allocate the appropriate resources more efficiently and accurately — all before stepping on site.

When a customer reports a water quality issue, such as discolouration or odour, Sydney Water can use Nearmap to verify the address, check the surrounding area for any potential sources of contamination, and trace the water flow direction and velocity with remote elevation profile and measurement tools. This helps pinpoint the cause of the issue, resolve it faster, and communicate with the customer more effectively.

PREVENTING THEFT AND SECURING WATER SUPPLY The same location intelligence also helps Sydney Water identify unauthorised or unmetered connections, such as illegal taps, bypasses, or extensions. Nearmap content is detailed and recent enough that Sydney Water can use it to scan its service area for any signs of water usage, such as pools, sprinklers, or gardens, and cross-reference the data with its billing records. This helps detect any discrepancies and ensure fair and equitable billing for all customers.

By harnessing the power of location intelligence, Sydney Water is able to enhance its operational efficiency, customer satisfaction, and financial performance, and deliver better water and wastewater services for its customers and the environment.

To read more about Sydney Water and Nearmap scan the QR code

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UTILITY • FEBRUARY 2024

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I N DUST RY INS IGH TS

Spotlight on sustainability:

NEW REPORT FROM URBAN UTILITIES Water utilities are at the forefront of climate impact as they grapple with challenges posed by climate change, including shifting precipitation patterns and increased water scarcity. By adopting sustainable practices, utilities contribute to a reduction in greenhouse gas emissions and support the push towards net zero.

With the release of its first sustainability report, Urban Utilities is highlighting its commitment to a more sustainable future.

E

nvironmental, social and corporate governance (ESG) reporting is becoming increasingly important in the eyes of investors, consumers and other stakeholders. Once a non-binding invitation for companies to articulate their strategies for managing sustainability risks and opportunities, it has now become a critical aspect of corporate responsibility worldwide.

Many jurisdictions, including Australia, are transitioning from voluntary to mandatory sustainabilityrelated disclosures.

Whether it's the adoption of innovative technologies, improving infrastructure or embracing environmentally conscious policies, Australian water utilities have long played a pivotal role in reducing emissions and achieving longterm sustainability.

Transparent reporting is the next step in fortifying this commitment, providing a clear account of sustainability efforts and progress. By publishing regular sustainability reports, utilities can enhance accountability and offer stakeholders, policymakers and the public a valuable tool to understand the impact of these initiatives and foster collective action.

SUSTAINABILITY IN MOTION Urban Utilities is responsible for delivering drinking water, recycled water and wastewater services to approximately 633,300 residential properties and 30,300 commercial properties in South East Queensland.

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The company’s first sustainability report examines the environmental and social impacts of its operations and describes the measures it’s taking to drive ongoing sustainable change. It outlines actions and progress during the 2023 financial year across seven sustainability pillars: net zero, healthy land and water, responsible waste management, secure water future, satisfied customers and liveable communities, safe and engaged workforce and corporate governance.

Urban Utilities has aligned its framework with the United Nations’ Sustainable Development Goals, focusing on the 14 goals where the company believes its work can make a significant contribution. This ensures that efforts towards fostering a sustainable future are directed towards not only the region Urban Utilities

UTILITY • FEBRUARY 2024

covers, but also Australia and the world at large. Furthermore, stakeholders can examine the company’s sustainability outcomes in the context of the wider Australian water industry.

Urban Utilities CEO, Paul Arnold, said the utility was committed to protecting people and the planet through responsible actions and operations.

“Sustainability is at the heart of all we do, from securing our region’s longterm water supply and reducing our environmental impacts, to having a safe and engaged workforce, and creating positive social value,” Mr Arnold said.

“While sustainability has always been central to our business strategy, the report both formalises and reinforces our commitment, and provides greater transparency and accountability around our ambitions and efforts.”

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I N D U ST RY I N SI G HT S

COGENERATION UNITS AT URBAN UTILITIES' LARGEST WASTEWATER TREATMENT PLANT IN BRISBANE.

GETTING READY FOR REPORTING The release of Urban Utilities’ sustainability report is, in part, a response to growing stakeholder expectations that organisations share their ESG ambitions and performance.

Additionally, the company is preparing itself for future reporting requirements introduced by the Federal Government.

Significant and concerted action is required if Australia is to achieve its commitment to reduce greenhouse gas emissions by 43 per cent below 2005 levels by 2030 and achieve net zero by 2050. In light of this, from 2024, Australia’s largest corporations will be required to report on new sustainability-related disclosures issued by the International Sustainability Standards Board.

This regulatory shift underscores the increasing importance of transparent reporting in fostering accountability and advancing broader sustainability goals.

“Although a timeframe has yet to be proposed for the water sector, Urban Utilities is proud to be taking a proactive approach,” Mr Arnold said.

“We need to be ready to transition to mandatory sustainability reporting requirements in the very near future, and our first report has provided us with a strong foundation to build upon.”

GREEN SUCCESSES Urban Utilities’ FY23 Sustainability Report details several of the company’s initiatives, including the unveiling of an Australian-first algae-based technology, which purifies wastewater up to five times faster than traditional lagoon-based treatment in regional and rural areas.

Responsible waste management is also a key focus, with the company pursuing a transition to circular economy practices.

Urban Utilities has partnered with Cleanaway, Australia’s largest waste management company, to convert organic food waste from major supermarkets into green energy.

Building on an 18-month trial, the collaboration utilises Urban Utilities' anaerobic digesters at its Luggage Point Resource Recovery Centre (RCC) to break down organic liquid food and

fat, oil, and grease (FOG) waste to generate biogas. The biogas is then fed into cogeneration units to produce renewable electricity.

Urban Utilities will now work with Cleanaway to treat up to 32 million litres of waste each year, and use the electricity generated from treating that waste to power its Luggage Point RCC, in turn reducing its greenhouse gas emissions.

Other initiatives outlined in the report include: • Generating 12,610 MWh from waste (13.2 per cent of the utility’s total FY23 electricity use) • Planting 1,100 native gum trees, which are irrigated with recycled water from the utility’s nearby wastewater treatment plant at Helidon • Delivering multiple actions from its Innovate Reconciliation Action Plan, including an increase in spending with First Nations suppliers by over 85 per cent • Driving water literacy within the community via engaging and memorable experiences

Urban Utilities’ FY23 Sustainability Report is available at urbanutilities.com.au/about-us/corporate-information/performance-reports

UTILITY • FEBRUARY 2024

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I N DUST RY INS IGH TS | Sponsored editorial

HORIZONTAL DIRECTIONAL DRILLING:

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ONLY THE BEST With more than 20 years of underground utility installation experience, Vermeer is a market leader and innovator in the HDD industry. Offering an impressive range of equipment, Vermeer is the HDD machinery of choice around the world.

From heavy duty rigs for large-scale installations to smaller, more flexible rigs, Vermeer’s HDD range is versatile enough to go almost anywhere and can drill through almost any type of earth.

As well as delivering increased efficiency and effectiveness, the company’s range prioritises accuracy, with some of the larger Vermeer drill rigs offering interactive, full-colour displays that provide real-time location information, potentially replacing the need for hard copy bore plans.

Not only does Vermeer Australia offer HDD equipment for every job, they also have a dedicated team of experts who can assist with after-sale support, servicing, parts and maintenance requirements.

REVOLUTIONISING UNDERGROUND UTILITY INSTALLATIONS When it comes to ticking the boxes for minimal disruption, efficiency and effectiveness in pipe and cable installations, horizontal directional drilling (HDD) has it covered. HDD is a method of installing underground cable, pipelines and service conduit without the messy open cut trench.

HDD offers some unique advantages when compared to other underground utility installation and traditional open cut methods. HDD negates the need to dig up large amounts of earth and relocate the displaced dirt and slurry, making it a faster and more efficient method of digging.

As well as its time-saving benefits, HDD offers significant cost savings for contractors, with faster job completion meaning reduced labour costs. HDD requires less dirt to be extracted, and as such there is less dirt that needs to be replaced.

Further cost saving benefits are delivered by HDD’s smaller footprint, meaning less permits need to be purchased to conduct work, and the need to compensate businesses due to area disruption is removed.

Boasting a much smaller physical footprint than other open trench projects results in less community disruption, as HDD removes the need to cordon off large areas for construction. This also has environmental benefits, as HDD has significantly less impact on the surrounding earth, which is especially critical in environmentally sensitive locations.

When it comes to utilities delivering optimal results, they need to be using the finest tools.

For more information call 1300 VERMEER or visit vermeeraustralia.com.au

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IN STOCK

CLEV ER

TO THE CORE THE TRACTOR THAT HELPS KEEP YOU ONE STEP AHEAD. The Vermeer RTX1250i2 Ride-on Tractor helps bring intelligent features to the forefront of your job. Offering selfidentifying, intelligent i2 attachments, the RTX1250i2 automatically recognises the i2 attachment and adjusts the machine’s controls according to the operational needs of the attachment. With a plow depth of 106.7cm (with tracks) and a reel carrier capacity of more than 2,200kg - all supported by an optional climate-controlled cab boasting a quiet, comfortable ride - productivity is at your fingertips. Contact your local Vermeer Australia team to try it for yourself.

VERMEERAUSTRALIA.COM.AU | 1300 VERMEER

Vermeer and the Vermeer logo are trademarks of Vermeer Manufacturing Company in the United States and /or other countries.

Product specifications are subject to change by OEM. © 2024 RDO Equipment Pty Ltd (trading as Vermeer Australia). All Rights Reserved.

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A UNIFIED APPROACH:

TECHNOLOGY TRIALS SIMPLIFIED FOR INDUSTRY 4.0 SUCCESS As we head into the era of Industry 4.0, the question for organisations isn't if they should adapt, but how swiftly and effectively they can. However, this evolution doesn’t need to be navigated on your own. Collaborating with an Industry 4.0 enablement partner who understands your unique challenges, and is committed to achieving common goals can significantly bolster your digital transformation journey.

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he transition to Industry 4.0 necessitates not only visionary thinking but also pragmatic action. This is where the role of a strategic partner becomes invaluable. As you prepare for technology trials, an experienced enablement partner can provide critical insights and guidance, and help ensure that the technology under trial is not just effective in the short term but also scalable, aligning with your long-term digital transformation objectives.

PURSUING IMPACTFUL RESULTS When embarking on a technology trial, clarity on the desired outcomes is essential. A successful trial is one where the technology aligns with established KPIs, indicating progress towards your digital transformation goals. Look for concrete results, such as improved operational efficiency and smarter cost management, as indicators of success.

However, it’s equally crucial to consider scalability from the outset. This involves evaluating the technology's potential to grow alongside your operations right from the paper-based planning stage.

DEFINING METRICS The success of a technology trial is dependent upon the establishment of well-defined metrics. Engaging with your partner to identify metrics that align closely with your operational and business objectives can ensure that they are tailored to the unique needs of your industry. Determine KPIs that are specific to your ambitions. For instance, in the context of a water utility aiming to enhance operational efficiency, a crucial KPI could be the leakage and loss rate.

OPTIMISING TRIAL TIMING Setting an effective timeline for your trial involves more than just selecting dates; it's about identifying a timeframe

that provides ample opportunity to evaluate the technology's performance and integration. During this time, the trial should concentrate on continuously measuring key performance metrics in live operational environments. This allows for real-world assessment of the technology's effectiveness and its alignment with desired outcomes.

It's crucial to adhere to the initially defined scope of the trial. Introducing new elements or 'wish list' items mid-trial can detract from its original purpose; such changes warrant a separate, subsequent trial built upon the successes of the first.

As you progress through the trial phase, continuous discussions about scalability should occur. This ensures that the technology is not just a short-term solution but can be effectively expanded to meet future needs. Make scalability a core component of your KPIs and success criteria. The insights you gather on scalability will not only inform the trial’s immediate outcomes but also shape a broader strategy for effectively scaling the technology in your day-to-day operations.

POST-TRIAL SUCCESS At the conclusion of the trial, conduct a thorough review meeting with key stakeholders to discuss lessons learned, evaluate the trial's success, and make informed decisions on whether to pass, fail, or extend the trial.

The end of a successful trial is just the beginning. It's time to analyse and share the results with everyone involved, setting the stage for smoothly integrating the new tech into your systems. This step is all about reshaping your operations to make the most of this new tech. Smartly allocating resources, providing thorough training, and setting up ongoing improvement practices are key to making sure the technology grows alongside your business.

A solutions provider such as Madison Technologies can play a crucial role in supporting your technology trial, providing expertise, resources, and guidance. Visit www.madison.tech or phone 1800 72 79 79 for more information

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I N DUST RY INS IGH TS | Sponsored editorial

MODELLING UNDERGROUND UTILITIES FOR PROACTIVE RISK MANAGEMENT A short distance north of New Zealand’s capital city of Wellington sits the Lower Hutt urban centre. With a population of around 110,000 people, the city has outgrown its roots as a manufacturing hub and commuter suburb, into a thriving business and residential centre defined by the winding rivers that flow down the Hutt Valley (Heretaunga). But as it grows, as does the need for new and approved infrastructure.

ARTIST RENDITION OF THE RIVERLINK.

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iverLink is a partnership between Greater Wellington, Waka Kotahi, Hutt City Council and iwi Taranaki Whānui ki Te Upoko o Te Ika and Ngāti Toa Rangatira to deliver crucial flood protection and river restoration work, improvements to public transport, walking and cycling routes, local roads and the State Highway 2 Melling Interchange, as well as urban revitalisation of the Lower Hutt city centre.

exported in various formats, making it compatible with our design software.

“This compatibility enabled seamless integration of the model into our planning and design processes, making it an invaluable tool. The visual presentation of the model is impressive, and the user interface is intuitive and easy to navigate.”

LOOKING UNDERGROUND TO MAP THE FUTURE Te Wai Takamori o Te Awa Kairangi engaged Reveal in December 2022 to complete a comprehensive utility model that could be used to plan further investigations and inform partners on the status of the underground utilities within the planned project footprint in Lower Hutt.

The work was completed in two stages, with the first stage involving a comprehensive 2D desktop study. Reveal's team compiled information from various sources, including BeforeUDig and utility providers to ensure the data was up to date. This initial step ensured that the foundation of the model was built on accurate and reliable information.

Following the desktop study, Reveal performed a Ground Penetrating Radar (GPR) survey. The GPR data was processed and used to update the model from 2D to 3D, providing an even more comprehensive understanding of the subsurface infrastructure by adding crucial depth measurements to the model.

Samantha Smith, Project Manager – Utilities for Te Wai Takamori o Te Awa Kairangi, said “One of the standout features of Reveal's model is its versatility. The model can be

EFFICIENT PLANNING The Reveal team took only three months from project inception to deliver a fully-fledged unified utility model in a web-based platform for Riverlink’s designers and engineers to work with.

“One of the most significant benefits of using the Reveal model is its potential to reduce the need for invasive investigations. By highlighting unknowns and higher-risk areas, the model allows for targeted investigations and utility relocations planning. This approach minimises disruptions and costs associated with more invasive methods,” Ms Smith said.

“In conclusion, Reveal has proven to be innovative and forward-thinking in their field of subsurface utility investigations. Their diligent and thorough approach, coupled with the creation of a visually appealing and user-friendly model, has enabled us to plan further investigations, and inform our relocation design with confidence.”

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To find out more, go to www.reveal.nz

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REVEAL ARE AUSTRALASIA’S INNOVATIVE SUBSURFACE EXPERTS. With Reveal, you can eliminate subsurface risks, deliver infrastructure projects faster and minimise cost blow-outs and variations.

If you need to understand your underground, get in touch with the world’s leading subsurface experts.

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WAT E R OP E RATIONS A ND TR EATME N T | Sponsored editorial

How digital asset management CAN MINIMISE RISK AND MAXIMISE COMPLIANCE Utilities are responsible for some of the most critical functions in our society.

Whether it’s keeping the lights on or the water running, proactive asset management is essential to maintaining the strong and steady supply of utilities to consumers. Asset failure can prove catastrophic for customers and extremely costly for utilities – but how can utilities stay ahead of potential problems and proactively manage assets?

Failure to comply with service agreements can cause myriad problems and penalties to utilities, their brand, consumers, and major infrastructure.

DIGITAL ASSET MANAGEMENT An asset management system is essential for all utilities to effectively deliver their services with minimal disruption and maximum compliance. The best asset management systems will not only provide a one-stop shop for utilities to manage their suite of assets – they will also help to lay out all the necessary guidelines and principles required to effectively maintain assets.

Digital asset management offers far greater benefits over traditional analogue management. Not only does having digital management tools mean data is more accessible, it improves data callback, meaning data can easily be accessed for day-to-day use as well as for critical auditing and reporting purposes. Research shows that digital asset management can better support the goals and tasks of an organisation by increasing productivity, reducing downtime, risks and saving costs.

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or all utilities, asset management isn’t just a matter of responding to problems as they arise – it’s critical to stay ahead of the curve and ensure compliance with industry regulations.

MINIMAL DISRUPTION, MAXIMUM COMPLIANCE There are many factors that impact the performance and quality of assets for utilities. While merely replacing assets when they fail may seem like a sensible approach, it is not a total or ideal solution. This reactive approach of mending or repairing an asset once it stops performing can be incredibly costly, time-consuming and damaging to utilities’ reputations.

Asset failure can also cause huge service interruptions, which can have dire consequences for utilities. The highlyregulated nature of the utility sector means keeping up with industry standards and regulations can be challenging.

SPECIALISED APPLICATIONS FOR YOUR UTILITY There are a range of applications in the market that assist in the process of digital asset management. GoPoly’s PEWeldBank is one such solution, providing a tailored solution for utilities to record and manage their pipeline and weld assets. The PEWeldBank App can spot welding errors before they even go underground, preventing costly weld repairs and keeping an organisation’s reputation intact.

PEWeldBank provides a streamlined and accurate approach to data logging, ensuring excellence and compliance with all industry standards. It’s also a powerful QA, tutoring, risk management and productivity tool. With the ability to digitally measure weld data and store the data in a cloud-based service, recording and measuring weld assets becomes a more accurate and easy operation.

PEWeldBank, designed for HDPE pipe welding, can assist in minimising weld failure events that can cause huge repair costs, interruption to supply, infrastructure damage and potential OH&S implications.

To learn more about how PEWeldBank can help you keep track of all your welding data, head to peweldbank.com

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The ultimate weld data recording system PE Weld Bank allows you to accurately record and save all your Butt weld and Electrofusion (EF) data in one location • Accurate, realtime weld data collection • Runs on Apple and Android with no device or user limit • Secure cloud-based storage • Works on all hydraulic Butt welders and EF machines • Instant reports available in multiple layouts

The additional PEWeldBank Sensor Set also allows the app to accurately record temperatures and welding pressures • Compatible with any hydraulic Butt welder • Five-year guarantee on transducer accuracy

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WAT E R OP E RATIONS A ND TR EATME N T

TRANSFORMING WATER QUALITY in remote regions of the Northern Territory In response to water security concerns in the remote First Nation’s community of Laramba, Power and Water Corporation delivered a new water treatment plant to address the urgent need to improve water services in remote Aboriginal communities.

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ocated some 200 km North-west of Alice Springs in the Northern Territory, the remote community of Laramba has long faced the challenge of relying on groundwater with elevated levels of naturally occurring uranium, exceeding the Australian Drinking Water Guidelines (ADWG).

In response to community concerns and advocacy, the Power and Water Corporation undertook a significant project to address this issue. Engaging CleanTeQ Water, the project, delivered under the Northern Territory Government's $28 million commitment to water security, showcases innovative ion exchange water treatment technology.

SELECTING ION EXCHANGE FOR URANIUM REMOVAL After a meticulous technology assessment study, ion exchange emerged as the optimal water treatment solution.

Its advantages, including low waste volumes, minimal power

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consumption, adaptability to changing feed compositions, and a proven track record in remote locations, made it the ideal choice. The project aimed to not only meet the ADWG uranium level standards but also enhance long-term social, financial and health benefits for the Laramba residents.

CHALLENGES AND SOLUTIONS Undertaking the project in a remote location and within a tight six-month timeframe posed significant challenges.

CleanTeQ Water was engaged to deliver the plant under a design and construct contract. The scope of work included upgrading existing equipment, expanding the bore compound, replacement of bore pumps, and installation of tanks, new buildings and the water treatment plant. The 360m3/day plant, equipped with an acid dosing system for pH correction and a salt system for regeneration, features two parallel ion exchange treatment trains operating in a lead-lag configuration.

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CUSTOM DESIGN FOR SITE-SPECIFIC NEEDS CleanTeQ Water's custom-designed ion exchange system addressed Laramba's specific water quality challenges.

Rigorous testing ensured that the plant would provide effective long-term uranium removal with optimised efficiency and minimal waste generation. The use of wireless telemetry instrumentation for remote monitoring further demonstrates the project's innovative approach.

ADVANCED AUTOMATION FOR RELIABLE OPERATION Given the remote location, the fully automated plant incorporates real-time monitoring of the control, electrical and mechanical systems. This advanced system allows for the proactive identification and resolution of potential equipment issues, thereby preventing possible failures.

SUCCESSFUL OUTCOME Following completion of the project in December 2022, the plant underwent an 8-week validation period – during which the reduction of uranium levels was demonstrated from an average of 0.033mg/L to undetectable levels of <0.0001mg/L. Connected to the Laramba community water supply on 17 April 2023, the plant was officially launched on 26 April, with community members expressing delight at the improved water quality.

COMMUNITY ENGAGEMENT AND SUPPORT Throughout the project, Power and Water prioritised community engagement to build trust and support by implementing a comprehensive Community Engagement Plan, including meetings with the Minister for Essential Services and other key stakeholders to outline the project.

The community actively participated in the official opening, seeing the ion exchange process for themselves and gaining confidence in the treated water. The positive feedback during the launch highlighted the success of community involvement in the project.

NATIONAL SIGNIFICANCE The Laramba Water Treatment Plant project aligns with national priorities in the Australian water industry, addressing the urgent need to improve water services in remote Aboriginal communities. Initiatives like the Closing the Water for People and Communities Gap report and the Australian Water Association's Strategy’25 emphasise the importance of collaboration and sustainability in water management.

MULTI-DIMENSIONAL BENEFITS The project has produced significant social, environmental, economic and cultural benefits. Improved health outcomes, social equity and reduced environmental impact through minimal uranium-bearing waste highlight the project's success. Economic benefits include supporting a growing and thriving community, fostering long-term development and economic prosperity.

CULTURAL RELEVANCE Recognising the deep cultural connection of Aboriginal communities to water, the project contributes to the UTILITY • FEBRUARY 2024

DIGNITARIES AND KEY STAKEHOLDERS AT THE OFFICIAL OPENING OF THE NEW LARAMBA WATER TREATMENT PLANT

preservation of cultural, spiritual and social identity. By ensuring safe and reliable water supplies, the water treatment plant positively impacts the physical and spiritual well-being of the Laramba community.

ACKNOWLEDGING COMMITMENT AND SUCCESS The Laramba ion exchange water treatment project is a shining example of success in addressing water quality challenges and fostering community development. Its positive impact on health, community engagement, cultural preservation and environmental sustainability serves as a model for future initiatives. As the Australian water industry continues its journey to close the gap, projects like these exemplify the transformative power of collaboration, innovation, and commitment to ensuring safe and reliable water for all communities.

The success of the Laramba Water Treatment Plant project has not gone unnoticed. It has received widespread acclaim, winning the 2023 Chief Minister's Awards for Excellence in the Public Sector and the NT Infrastructure Project Innovation Award in partnership with Clean TeQ Water. These accolades highlight the significance of the project in the broader context of providing safe and secure drinking water in remote communities.

The Laramba Water Treatment Plant project is a testament to the commitment of Power and Water, Clean TeQ Water and the Northern Territory Government in improving water security in remote communities in the Northern Territory.

Power and Water is advancing work to improve water security in neighbouring communities, including Yuelamu and Yuendumu.

Providing safe and secure drinking water throughout the Northern Territory is paramount in supporting the long-term social and health benefits for all Territorians.

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WAT E R OP E RATIONS A ND TR EATME N T | Sponsored editorial

MODULAR AND COMPACT

drinking water monitoring systems Water quality is a critical factor for human well-being, environmental sustainability, agricultural prosperity, and the overall appeal of water bodies.

Because our drinking water is ultimately sourced from the environment, it is necessary to eliminate impurities and ensure that the water conforms to the Australian Drinking Water Guidelines.

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n Australia, addressing diverse challenges such as drought, salinity, bushfires, floods, aging infrastructure, agricultural runoff, mining activities, and urbanization is imperative for effective water quality management.

Local water authorities often face specific issues like acid sulphate soils, blackwater events, bushfire runoff, cyanobacteria, salinity, and polluted urban runoff.

All potable water needs to comply with the Australian Drinking Water Guidelines and in order to do so, these impurities must be eliminated.

and some viruses, while nanofiltration excels in removing smaller particles, divalent ions (e.g., calcium and magnesium) and certain organic molecules. In all cases, pre-filtered water is passed through membranes, with the resulting permeate collected for use as clean water.

In all three cases, pre-filtered water is pumped through a number of pressure pipes containing the membranes. The water that successfully passes through the membranes, known as permeate, is collected for use as clean water.

MONITORING THE FILTRATION SYSTEM

FILTRATION, FILTRATION, FILTRATION Three common processes used in removing impurities are reverse osmosis (RO), ultrafiltration and nanofiltration.

Reverse osmosis proves effective in removing a wide range of impurities, including minerals, bacteria, viruses, and organic molecules. Ultrafiltration targets larger particles such as suspended solids, colloids, bacteria,

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Sustaining the functionality of filtration systems is crucial, necessitating constant monitoring of permeate quality to detect potential membrane damage early on.

Conventional methods involve manual sampling, which is time-consuming and prone to documentation errors.

Bürkert addresses this with the Permeate Monitoring System, which automatically monitors the permeate of each pressure pipe in reverse osmosis or nanofiltration plants. This system allows for the early detection and localisation of membrane damage, preventing downtime. Delivered as a standalone package tailored to individual plants, the system includes an HMI, controller (PLC), and digital interfaces for seamless integration into plant control systems.

While maintaining the health of filtration systems is integral, comprehensive water quality management involves continuous monitoring of water quality throughout the network. Bürkert's Water Quality Management System (WQMS) meets this need by providing a comprehensive monitoring solution for multiple parameters.

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Analysis is performed by MEMS (micro-electro-mechanical system) microchip technology in the form of modular cubes. Depending on the measurement parameters, different sensor elements are used. Only low sample water flows are necessary and the smallest of changes in the sample water can be detected quickly. MEMS technology is proven to reduce costs and maintenance expenses. The acquired process data can be retrieved at any time and is available for controlling, monitoring and documenting remotely.

Typically, pH, chlorine, turbidity and temperature, can be measured with one system, but depending on requirements, other measuring modules can be inserted into the system – for example, conductivity, redox potential (ORP) or iron measurements can be added via plug-and-play. Nitrate and SAC measurements are also possible. All measured values are clearly displayed on a touchscreen on-site, and the entire process can also be monitored remotely via a fieldbus connection.

Australian water bodies must adhere to stringent water quality standards for both processing and drinking water.

Partnering with a trusted water quality monitoring provider, like Bürkert, not only ensures compliance but also grants peace of mind. Bürkert’s ongoing collaboration with various municipal and private water bodies is a testament to their commitment to consistently meet and exceed these rigorous standards.

For more information, visit www.burkert.com.au/en

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Elevate assurances Precision water monitoring for unwavering compliance with Australian standards

// Discover why the water industry prefer to partner with us

WAT E R OP E RATIONS A ND TR EATME N T

FROM TRASH TO TREASURE:

TURNING WASTEWATER SLUDGE INTO VALUABLE RESOURCES

In a move towards a more circular economy, South East Water has partnered with engineers from RMIT University and Manipal University, India, to develop a cost-effective and environmentally friendly way to remove heavy metals from biosolids, multiplying the number of ways biosolids can be reused and recycled.

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s the world’s population grows, so too does our production of waste. According to the Australian and New Zealand Biosolids Partnership (ANZBP) Australia produces in excess of 349,000 tonnes of dry biosolids – or treated sewage sludge – each year. When treated and managed properly, biosolids can be used for a number of applications and can be beneficial to many industries.

The humble toilet flush is the beginning of a surprisingly long and complex journey for human waste. While wastewater is generally composed of 99.9 per cent water, complex treatment must occur to ensure that the wastewater is safe to be reused and recycled back into the environment.

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Wastewater undergoes a variety of filtration and sedimentation treatment processes, which results in two substances: treated water and sewage sludge. The purity and composition of each substance determines how it is used. Treated water is most frequently released back into the ocean or used for irrigation as recycled water. The sewage sludge is treated further, turning it into biosolids and, potentially, biochar. Biosolids are then used as fertiliser, or in other agricultural applications, depending on their contaminant grade and treatment grade.

Biosolids can be a valuable resource. However, one of the biggest hurdles to recycling biosolids safely is contamination from heavy metals. Heavy metals contamination can render biosolids unable to be used for agricultural applications, as

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the contaminants can spread and have consequences for flora and fauna.

While heavy metals are not desired in biosolids, or their derived biochar, for land application, they can be a valuable resource in many applications if recovered efficiently. For example, copper and zinc, some of the major heavy metals in biosolids, have widespread applications in electrical materials, power lines and coating materials. Furthermore, they can also be used to produce catalysts for hydrogen or bio-oil production from a number of waste streams.

INNOVATIVE ENGINEERING Engineers in Melbourne – led by RMIT University in collaboration with South East Water and Manipal University in India – have developed an innovative process to separate heavy metals from biosolids.

RMIT lead senior researcher and Deputy Director (Academic) of the ARC-funded Training Centre for the Transfor, `Kalpit Shah, said, “Our innovation helps ensure that the resulting biosolids do not leach heavy metals into the environment and retain the nutrients that can be used for land applications.

With further processing, the biosolids can be turned into high-grade biochar, which is a renewable energy resource and has a range of applications, including as a fertiliser.”

The overall metal-removal process occurs over three stages: extraction, purification and recovery. The PhD researcher on the project, Ibrahim Hakeem – who is now a postdoctoral research assistant at RMIT – explained, ‘’The first stage of the removal process involves the extraction of the metals from biosolids into the liquid stream (leachate).

This step employs a mild acid solution at ambient conditions to leach out the metals in biosolids into the solution by contacting the solids with liquid under agitation”.

The leachate stream is then concentrated down through recycling processes. Essentially, the separated solution, which contains low concentrations of metals, is further used as a solvent to extract more metals from biosolids by continuously recycling it until the metals reach saturation concentration.

From there, the concentrated stream is treated with an alkali solution to precipitate the metals out of the solution, which are recovered in a stagewise approach.

“Overall, this innovative process at optimum conditions can remove approximately 80 per cent of metals present

in biosolids and can recover more than 95 per cent of zinc, cadmium, and chromium, and more than 65 per cent nitrogen, copper, lead and arsenic from the solution. The removal efficiency can vary depending on the process conditions, source of biosolids and the chemical form of these metal ions within the biosolids matrix,’’ Dr Hakeem said.

BUILDING THE CIRCULAR ECONOMY The process is said to be a closed loop solution that causes the least harm to the environment.

Professor Shah explained that, “The developed process uses a dilute concentration of common acid (no more than three per cent v/v) under mild conditions of temperature and pressure (ambient temperature and atmospheric pressure).

“The recycling of the leachate stream for further metal extraction advances upon traditional methods to reduce the total volume of water and acid solution required for the process.

Lastly, the resulting acidic leachate stream is neutralised in the metal recovery stage, and the final effluent contains no acid or toxic chemicals.”

For South East Water, this new process opens many doors to further develop renewable, sustainable products and solutions. South East Water Research, Development and Innovation Manager, Dr David Bergmann, said, “At the end of a sewage treatment plant, you're basically producing two materials. You're producing recycled water of various grades that can be used for irrigation, for agriculture, all sorts of things. Then there's the solids component, the biosolids component, which contains everything that's not in the water.

“Traditionally, we’ve worked with farmers to use the biosolids nutrients in agriculture. It has to be done very carefully to get the level of nutrients right and make sure that the contaminants that might be there are managed as well so as not to create contamination issues into agriculture.

“But that in fact costs us substantial money to manage biosolids that actually if processed correctly, is a material of value. If we recover metals by this process we can produce cleaner products like biochar and cleaner metals with greater value rather than a complex mixture that is seen as a contaminated waste.”

For more information visit www.southeastwater.com.au

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THE BRYN ESTYN PROJECT: SECURING HOBART’S

water supply

TasWater officially opened its upgraded Bryn Estyn Water Treatment Plant (WTP) in September 2023, which is expected to secure the water supply for more than 200,000 customers in southern Tasmania.

TASMANIAN PREMIER, JEREMY ROCKLIFF, AND TASWATER’S CHAIRMAN, DR STEPHEN GUMLEY AO, AT THE OFFICIAL OPENING OF THE BRYN ESTYN WTP

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asWater's new water treatment plant will provide safe, clean, and reliable drinking water for generations to come, and is the utility's largest ever capital works project.

TasWater Chief Executive Officer, George Theo, said that the opening marked a major milestone for Greater Hobart.

“This was a landmark day for southern Tasmania,” Mr Theo said.

“The new plant is able to treat 160 million litres of water per day. It’s been designed for future population and economic growth, with the potential to be expanded to treat another 40 million litres of water per day if required.

“The project is a story of infrastructure, economic benefits, current and future jobs, protecting and enhancing the natural environment, and providing opportunities for Tasmanians. It is also the story of TasWater’s dedication to securing the best possible customer outcomes now and long into the future.”

TASWATER’S LARGEST EVER CAPITAL WORKS PROJECT Located north of Hobart in the Derwent Valley, the Bryn Estyn WTP is Greater Hobart’s primary source of drinking water, providing around 60 per cent of the water supplied to southern customers.

Water from Bryn Estyn winds its way through 433km of water mains and into 145 reservoirs before reaching the taps of customers in Hobart, Glenorchy, Kingborough, Brighton, Derwent Valley, Southern Midlands, Sorell and Clarence.

The original plant was built in 1962, with capacity augmentations in 1972 and 1992, and construction work on the current upgrade commencing in mid-2021.

All major structures, buildings, electrical and mechanical installations are now complete, with the new infrastructure commissioned, and the plant officially opened at an event on 22 September 2023, which gained widespread media interest in Tasmania and beyond.

TasWater’s General Manager Project Delivery, Tony Willmott, said the scale of the project is unprecedented for TasWater. “In the early phase of the works, 11,456m3 of concrete was poured, 2,800t of reinforcing steel placed, and more than 93,000m3 of soil was excavated,” Mr Willmott said.

“TasWater is currently delivering a planned ten-year, $1.84 billion capital investment program for completion in the financial year 2025–26. The program is delivering important customer and environmental outcomes for the benefit of all Tasmanians.”

A BIGGER PICTURE THAN STEEL AND CONCRETE “During construction the project employed around 1500 people directly, and 500 indirectly,” Mr Willmott said.

“At its peak, around 150 people were working on site every day, generating benefits for Tasmanian businesses across the state.”

The Bryn Estyn project was delivered by TasWater’s Capital Delivery Office (CDO), an alliance with UGL Limited and CPB Contractors, along with their sub-alliance partner WSP, which

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TASWATER CEO, GEORGE THEO, AT THE OFFICIAL OPENING OF THE BRYN ESTYN WTP.

will continue to deliver TasWater’s accelerated Capital Works Program through to July 2025.

It is a model that continues to directly support the Tasmanian economy, with more than 80 per cent of the total value of CDO packages being awarded to Tasmania-based suppliers, providing a significant economic boost for the local civil construction sector and its supply chain, growing the capability of the local contractor market for future projects.

WATER SURETY AND SAFETY TasWater’s Head of Water and Environment Services, Fran Smith, said the upgrade expanded the capacity for the organisation to deliver greater volumes of high-quality, safe drinking water for Hobart.

“To be able to treat and deliver 160 million litres of water every day, with every litre meeting the Australian Drinking Water Guidelines, is not a small task,” Ms Smith said.

“Each drop of water that has passed through Bryn Estyn has been subjected to a treatment process that includes filtration, ozone, absorption using activated carbon, chlorination, and now Ultra Violet disinfection for an extra layer of treatment.

“Just last year alone, across the state we undertook 273,000 tests to ensure Tasmanians could turn on the tap with confidence knowing their water is absolutely safe to drink, one test every two minutes.”

CUSTOMER AND COMMUNITY FOCUS Mr Theo said TasWater was all about a customer focused future.

“TasWater has a range of initiatives underway as we ramp up our customer and community focus and continue our journey to being the best service provider in Tasmania.

The project takes us one step closer to realising our strategic vision ‘to unlock the full potential of water’ for a thriving Tasmania.

“We are proud of what TasWater is delivering, and the Bryn Estyn WTP is a prime example. While it is a story of a vast infrastructure project, it is also a human story for so many people, not least our customers, who will receive the benefits of the Bryn Estyn WTP upgrade for decades to come.”

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WAT E R OP E RATIONS A ND TR EATME N T | Sponsored editorial

HELPING COUNCILS NAVIGATE

new waters in regulations As legislation and community awareness surrounding water quality gather pace, the demand for comprehensive monitoring and testing systems has never been greater. Here, Peta Thiel, head of Research Laboratory Services discusses the benefits and importance of reliable filtration media testing.

RESEARCH LABORATORY SERVICES DIRECTOR PETA THIEL ANALYSES A SAMPLE OF ACTIVATED CARBON MEDIA.

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ith Australia undergoing a transformative period in water management, a Melbourne laboratory at the forefront of helping local authorities conform to increasingly stringent regulations stresses the growing importance of programmed filtration media testing.

Peta Thiel is the head of Research Laboratory Services, which provides filtration media testing for 20 Australian water authorities that have now switched over from traditional sandbased media to the much-heralded activated carbon technology.

With her company one of the go-to’s in its area of expertise, she is in a unique position to provide some valuable insights into the way the industry is changing.

“The past 15 years have seen a fundamental shift in the way water is filtered in treatment plants right throughout the country,” Ms Thiel said.

“We’re seeing that not only through the investment in technology but in the approach to testing itself.

“The advantages of carbon – including removal of taste and odour compounds making it more palatable for consumers – are well known.

“However, with recent changes to federal drinking water guidelines regarding microbial health-based targets, the importance of reliable testing and analysis has never been more crucial regardless of the media being used – and that’s where we come in,” she said.

“While the rapid gravity filtration process in water treatment is typically the last barrier prior to disinfection, ensuring filter media is fit for purpose and maintained correctly through effective back washing has become widely recognised.

“By testing the filtration media and the water prior to and after filtration we can help reduce clogging leading to head loss, decrease microbial risk, and extend the life of the media – which can amount to significant cost savings for councils.

“Similarly, in testing activated carbon media, we can ensure the adsorptive and biological processes are working within the filter to reduce chlorine demand, chemical costs and formation of disinfection by-products.”

Ms Thiel said that while her firm worked at the cutting edge of testing new filtration systems, the vast majority of Australian water authorities still relied on sand media or a combination of both.

“It must be stressed that while we work closely with councils who’ve embraced the emerging technology, most of our work involves assisting those using more traditional filtration methods,” she said.

“Over the past 20 years of consultation with authorities here and throughout New Zealand, we’ve developed a range of programmed testing procedures to help them keep up with legislation.

“Not only have the standards for removal of contaminants from drinking water been raised, we’ve also seen a wholesale change to the way that trade waste is treated – sometimes requiring on-site treatment prior to discharge to sewer.”

Ms Thiel said that by working with a comprehensive database from water treatment plants throughout Australia and New Zealand – embodying varying climatic conditions and raw water sources – Research Laboratory Services was able to offer reliable analysis and interpretation.

“We can also provide treatment options for emerging as well as existing contaminants of concern through desktop reviews and lab scale testing,” she said.

For more information, visit www.researchlab.com.au

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WAT E R OP E RATIONS A ND TR EATME N T | Sponsored editorial

HOW

PRESSURE TRANSIENT MONITORING

BENEFITS WATER SUPPLY NETWORKS In the dynamic world of water supply management, pressure transient monitoring stands out as a pivotal tool for maintaining the integrity and efficiency of water networks. This innovative approach serves not only to enhance the longevity of water supply assets but also to significantly uplift community experiences by ensuring reliable and uninterrupted water supply.

LOCATING THE SOURCE OF TRANSIENTS One of the primary benefits of pressure transient monitoring is its ability to identify and locate the sources of transients, often caused by pumps, valve operations, or rapid demand changes.

These transients can lead to significant issues within the network, such as pipe bursts or water quality degradation. By pinpointing the origin of these disturbances, water utilities can swiftly address the root causes, thereby calming the network and preventing the cascade of issues that often follow transient events.

MINIMISING ASSET FATIGUE Another critical advantage of this technology lies in its capacity to minimise asset fatigue. Transient events, with their associated high-pressure spikes and drops, can significantly strain water network infrastructure. Over time, this can lead to increased wear and tear, ultimately shortening the lifespan of critical assets.

Through effective monitoring and management of pressure transients, it's possible to greatly reduce the occurrence and impact of these events, thereby extending the life of assets and reducing the frequency of failures. This not only cuts down on maintenance and replacement costs but also ensures a more consistent and reliable water supply.

FEWER DISRUPTIONS, RAPID RESPONSE, ENHANCED RELIABILITY The implications of effective transient pressure monitoring extend beyond the physical network and directly benefit the communities served. By reducing the likelihood of network failures and ensuring more stable operations, communities experience fewer disruptions in their water supply. This

reliability is essential not only for daily convenience but also for public health and safety.

Additionally, this technology offers improved and immediate insight into incidents such as burst water mains, allowing for prompt rectification. This quick response minimises property damage and mitigates water loss, further protecting the interests of the community and the environment.

A COMPREHENSIVE APPROACH It's crucial to recognise that the success of pressure transient monitoring goes beyond mere hardware deployment. A comprehensive approach involves a dedicated team of field technicians, analysts and engineers who continually review network data, hydraulic models, and customer demand patterns, while altering deployment locations to localise events. This team provides detailed insights that are instrumental in fine-tuning the operations of the system.

By integrating advanced monitoring equipment with expert analysis, water utilities can develop a deeper understanding of their networks. This holistic view allows for more informed decision-making, enabling proactive rather than reactive management. The outcome is a more resilient and efficient water supply system, tailor-made to meet the specific needs of the communities it serves.

The deployment of pressure transient monitoring is a strategic move towards enhanced water network management. This technology's ability to safeguard infrastructure, ensure consistent service delivery, and optimise operational performance cannot be understated. It's important that the region's most forward-thinking water utilities and critical pipeline owners, recognisie these benefits, and embark on comprehensive transient studies.

For more information, or a free consultation, contact Aqua Analytics on 1800 264 262 or visit www.aquaanalytics.com.au

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Struggling to reduce your non-revenue water?

Field Services Smart Solutions Consulting

WAT E R OP E RATIONS A ND TR EATME N T | Sponsored editorial

STUDYING AIRCON WATER WASTE

WITH DIGITAL METER DATA The New South Wales Government, Tamworth Regional Council, the University of Technology SydneyInstitute for Sustainable Futures, and Taggle Systems are joining forces to improve water efficiency in the home through an innovative research study.

« NSW DPE MANAGER OF WATER EFFICIENCY JETHRO LAIDLAW, TAGGLE BUSINESS DEVELOPMENT EXECUTIVE STEVEN CATO, NSW WATER MINISTER ROSE JACKSON, AND TAMWORTH MAYOR RUSSELL WEBB. PICTURE BY PETER HARDIN PUBLISHED

BY NORTHERN DAILY LEADER

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he study aims to learn how much water can be saved when air cooling units are properly maintained. To collect this data, 100 eligible residents across the Tamworth region, who own an evaporative air cooler, will get a Taggle digital water meter installed on their cooler to allow researchers to track their system’s efficiency over time. The study includes a service on their unit mid-project – valued at up to $200 – to monitor the water consumption difference before and after the service.

The service will include things such as cleaning of the cooler pads and water tank, removal of any calcium deposits, and an inspection of the electrical components and motor belt which can all cause problems and could result in a drop in household water bills by helping the unit use less water.

STAY COOL, SAVE WATER During hot weather, evaporative air coolers can use up to 100 litres of water per hour, and during periods of drought, this high demand can stress limited water resources.

The study will look at how units can be operated more efficiently, saving precious resources for the community – something that is particularly important ahead of a declared El Niño.

As approximately 8,000 homes in the Tamworth local government area are fitted with fixed evaporative air coolers, the outcome of this study could lead to major water savings in the region.

New South Wales Minister for Water, Rose Jackson, said, “Being water-wise is front of mind as we brace for the coming El Niño. There are small things all of us can do, especially in our homes, to be smarter with the water we use.”

“That’s why we’re launching this first-of-its-kind study and teaming up with Council and experts at UTS to learn exactly

how much water we can save through simple and easy actions – like properly maintaining air cooling units.

“At the same time, being more water efficient at home can boost hip-pocket savings for residents, while protecting water supplies for the entire community.

Tamworth Mayor, Russell Webb, said, “Tamworth Regional Council is passionate about improving water efficiencies across the region and we are happy to support any study that provides our residents with more information on how they can conserve water.

“This study will provide some great baseline data for water usage from evaporative air coolers.”

DIGITAL METER ROLLOUT Tamworth has recently completed a full rollout of digital water meters – the end-to-end solution delivered by Taggle – across the region so every property will also have its total water consumption data available via the MyTRC Water Portal.

Taggle Business Development Executive, Steven Cato, said, "In 12 months we've installed about 21,000 meters across Tamworth. These additional 100 meters for the study will provide valuable insights into a unique and a potentially highly effective water saving strategy.”

The digital water meters will record the hourly water consumption by the coolers, which will inform the quantities of water being used by the coolers separate to the households water use. This data can then be compared before and after the coolers are serviced to highlight how much water can be saved by regularly maintaining them.

"Trials like this will lead to not only better outcomes for Tamworth, but better outcomes for other regional centres and towns across Australia. Water is one of those scarce commodities wherever you are," Mr Webb said.

For more information, visit www.taggle.com

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WAT E R OP E RATIONS A ND TR EATME N T | Sponsored editorial

Reducing RISK DURING

pipe network maintenance Maintaining and carrying out repairs on pipe networks is an essential service, but not one without risk. Here we look how valve technology can offer greater protection to both operators and the overall water system.

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key service provision in the water distribution sector is maintaining the pipe network and carrying out repairs when necessary. Water supply pipes are predominantly concentrated in urban areas, with the block valves that control water flow situated in the middle of busy roads and streets. Whenever operation technicians need to open a valve for maintenance or repair, they are working in areas of heavy traffic – which presents significant dangers.

Equally, much of the water supply pipe network is very old, and many of the original manual block valves (valves that are opened and closed by turning an iron rod inserted in the hand-wheel) have deteriorated over time, becoming more difficult to manoeuvre.

This means that operators must exert greater force to open the valves, increasing the threat of repetitive strain injury – notably tennis elbow – as well as the risk of opening the block valve too quickly and creating a water hammer effect, which can cause serious damage in a water supply system.

PORTABLE VALVE ACTUATORS TO THE RESCUE System operators are seeking a way to manage these valves that offers greater protection to both operators and

the overall water system. Modec has adapted portable valve actuators to fulfil this requirement.

Rather than two operators exerting equal pressure on each end of an iron rod fixed to the hand-wheel, the procedure requires just one operator to set up the tool and hold it in place.

The technician is stationary, therefore better able to observe the traffic, and there is no risk of occupational strain or injury as the portable actuator is doing all the hard work. It also does the work in around half the time.

As it opens and closes the block valves at a controlled speed, it eliminates the danger of water hammer. It will also simply stop turning if the force applied threatens to break the valve.

FINDING A UNIQUE SOLUTION Health and safety is a major issue for system operators – both the safety of their personnel working on busy roads, and the safety of their equipment – and Modec is pleased to work with companies to find a unique solution to their needs.

These portable actuators help to improve the security of both employees and the supply system, while at the same time improving operational efficiency.

Through research and feedback from this sector, Modec has now created a standard kit for use in operating these underground valves. This standard kit was formed within Modec to develop offerings that address specific applications in the water industry, paying particular attention to the development of solutions that address common issues that are seen globally throughout this sector.

For more information, call 1300 FMT FMT (368 368) or email sales@fmt.com.au

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WAT E R OP E RATIONS A ND TR EATME N T | Sponsored editorial

A TRUSTED PARTNER IN WATER SOLUTIONS AND INNOVATIONS

I

With more than 85 years’ experience, Iplex has established itself as a leading provider of water solutions in Australia. The Iplex commitment to collaboration, expertise and innovation have made them a trusted partner with water authorities and within civil, irrigation and plumbing markets.

plex has positioned itself at the forefront of pipeline innovation. Their product portfolio is a testament to their dedication of advanced solutions that enhance performance, durability and efficiency.

One such innovation is BlackMAX®. Produced from polypropylene, BlackMAX drainage pipes are designed for stormwater drainage applications such as, council drainage, infrastructure drainage, ocean outfalls, road culverts and stormwater retention.

As the original large bore structured wall pipe manufacturer in Australia, Iplex takes incredible pride in offering utilities, councils, asset owners, developers and plumbers an alternative to conventional drainage solutions. The efficient design of the BlackMAX profile wall features a smooth inner bore and corrugated outer wall, optimising hydraulic performance whilst maintaining structural integrity.

Manufactured in Australia, BlackMAX is recognised for its durability and low-cost benefits compared with other conventional drainage pipes.

“We wanted to provide an alternative solution to conventional drainage pipes, offering a durable, lightweight pipe which is resistant to corrosion and root intrusion,” said National Technical Sales Engineer Don Tasevski.

The spigot and socket design includes a reinforced corrugated socket up to DN525 and a double wall socket

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UTILITY • FEBRUARY 2024

‘cuff’ for larger sizes ensuring added security at the pipe joint. The carefully designed rubber ring joint provides a high degree of resistance to infiltration, exfiltration and root ingress.

BlackMAX pipes are highly resistant to corrosive and aggressive ground conditions, such as acid sulphate soils and saline ground waters, enabling years of corrosion free service and low maintenance. Water Services Association of Australia's (WSAA) appraisal of Iplex Structured Wall polypropylene pipes state a service life of more than 100 years, if designed and installed in accordance with industry standards.

As Iplex looks to the future, the current BlackMAX range will be extended to provide the complete package of pipes and fittings for project requirements.

“It’s an exciting step forward, as councils and water authorities continue to support alternative products in the stormwater market, the potential for differing sizes and applications will grow,” said Mr Tasevski.

“Our large diameter corrugated pipes will provide huge opportunities for our customers and the communities they serve.”

For further information contact the Iplex team on 1300 047 539 or visit iplex.com.au

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WAT E R OP E RATIONS A ND TR EATME N T | Sponsored editorial

IMPROVING COMMUNITIES THROUGH ACCESS TO WATER WATER SUPPLY INSTALLED IN TIMOR-LESTE BY WATERAID

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aterAid Australia is part of a global organisation that enables the world’s poorest people to gain access to clean water, decent toilets and good hygiene, allowing them to unlock their potential.

WaterAid Australia’s Corporate Partnerships Manager, Mark Trembath, said, “WaterAid’s work is diverse.”

“Over 750 million people across the globe do not have access to daily safe, reliable drinking water, sanitation and good hygiene. We help to change this by providing storage for spring water, by placing walls and a door around open pits to provide privacy and dignity and education around hygiene.”

Interflow’s involvement with WaterAid Australia began in 2004 when Geoff Weaver, Interflow’s Managing Director at the time, was approached by a customer who had recently become a part of WaterAid Australia’s starting initiative.

“He gave me a call saying he wanted to start with a gala ball, and he was looking for companies related to the water industry that might be willing to support WaterAid through this first initiative,” Geoff, now Chair of the Board for Interflow, said.

Mr Weaver would later ring the customer back and give him his commitment to support WaterAid. “I saw it as a chance for Interflow to give back to communities that don’t have the same opportunities as we did in Australia,” Geoff said. “We never looked back.”

Fast forward to 2023, and WaterAid reached out to Interflow and gave them the opportunity to visit Timor-Leste on for the first time since the pandemic.

Interflow’s Managing Director, Daniel Weaver, and his wife Sophie, accepted the offer and made the trip to Timor-Leste in August.

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Interflow’s long-term commitment to WaterAid Australia is providing clean water and sanitation to those who need it most.

“My parents got to visit Timor-Leste in 2013 with WaterAid,” said Daniel.

“So, to take my wife in 2023 was a very special experience for me and my family.

“Visiting the communities in person is a humbling experience and I’m very grateful to have had the chance.”

What stood out most for Daniel was WaterAid’s model for empowering local people. Communities were heavily involved with the design and build of their new water supplies and took great pride in upgrading their village.

“It was Timor people doing it for Timor people,” he reflected.

“Visiting villages that have received support from WaterAid, you could clearly see a difference. Instead of walking for hours each day, with water access right outside their homes people could spend that time in other ways that benefited their futures, their families and their communities.

“This was most notable for the women and children of these communities. The opportunity for education is the example most in front of mind for me”.

On hearing about the work WaterAid does, the first question people tend to ask is ‘how can I help?’ The answer is to support the organisation through one of their regular fundraising initiatives.

“With just under 80 cents in every dollar raised ending up in WaterAid’s programs, we are proud of the fact that donations are able to stretch far in the communities we support,” said Mark.

“These funds help to make a difference to improving the lives of the local communities.”

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We’re here to improve the lives of the communities we serve, for generations to come

WAT E R OP E RATIONS A ND TR EATME N T | Sponsored editorial

BEST PRACTICES FOR SODIUM HYPOCHLORITE IN WATER TREATMENT Disinfection of water is a key component of water treatment, and sodium hypochlorite is a common and effective choice for this process. However, although it is a powerful disinfectant, it is also highly reactive. This article explores how sodium hypochlorite is used in water treatment plants, best practices for storing it, and guidelines for safe handling.

S

odium hypochlorite (NaCIO) is a corrosive chemical and powerful oxidizer that is often used as a bleach and a disinfectant. Due to its reactive nature, it needs to be stored carefully. Liquid storage solutions provider, Polymaster, supplies safe-storage tanks for this chemical to be used in water treatment plants, and has shared some key information about when this chemical is used and how to store it safely.

HOW IS SODIUM HYPOCHLORITE USED IN WATER TREATMENT? When sodium hypochlorite is added to water it starts a process called chlorination, which eliminates harmful microorganisms, such as bacteria, viruses and parasites. This process is commonly used in municipal water systems to ensure the water is safe to drink and use.

It can be used to remove things from the water such as dissolved iron, manganese and hydrogen sulphide, which give the water an unpleasant taste and odour, and can stain clothing and fixtures. It also controls algae and other organic growth in reservoirs, water tanks and other water storage facilities.

HOW DO YOU STORE IT? Sodium hypochlorite is a highly reactive and corrosive chemical that requires special handling and storage. It’s important that it’s stored within a tank or container that is

built for the purpose of holding aggressive chemicals, such as Polymaster’s self-bundled and process tanks.

These tanks have a specific gravity (SG) of two, even though you only need up to 1.5SG, and are UV stabilised and chemical resistant, meaning that they are not prone to corrosion. If you were to put this chemical within a normal polyethylene rainwater tank with a lower SG of one it would essentially dissolve, resulting in leaks.

Store sodium hypochlorite in a cool, dry and well-ventilated area, away from direct sunlight and other chemicals, using containers made of compatible materials. Ensure that the sodium hypochlorite containers are labelled with the proper hazard warnings. When it comes to storing sodium hypochlorite, what you are storing it with is also important. It should not be stored with acids or any other chemicals that can react with it.

This includes other acid-based chemicals (e.g. sulfuric and nitric) as these release a toxic chlorine gas when they come into contact with sodium hypochlorite that can cause serious respiratory problems; any kind of organic compound such as oil, gas or alcohol, as chlorine gas can be released and create a fire hazard; and certain metals such as iron, aluminum and zinc, which can also create a fire hazard.

By following these guidelines, water treatment plant operators can ensure the safe and effective use of sodium hypochlorite in their facilities.

For more information, contact Polymaster’s chemical team on 1300 062 064 or visit polymaster.com.au

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Secure IBC storage & decanting solutions Polymaster’s unique Enclosed IBC Bund solves many of the problems associated with IBC storage and chemical/fluid decanting in a weather resistant, purpose-built enclosure. Æ Full weather protection – stops rain entering the enclosure

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WAT E R OP E RATIONS A ND TR EATME N T | Sponsored editorial

Going with the flow…meter Advanced flow meter devices play a vital role in utilities, enabling precise monitoring and control of fluid and air flows. They allow for the accurate measurement of flow rates, enable efficient process optimisation, enhance the safety of operations, and are key to optimising resource allocation and reducing waste.

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or more than 50 years, AMS has been supplying instrumentation, calibration equipment, software and controls to all utilities in Australia.

Their latest model, the FCI ST50 meter, is a compact, lowcost solution for accurate, repeatable flow rate measurement of air, compressed air or nitrogen. This insertion-style flow meter has no moving parts and is available in probe lengths for installation into pipe diameters from 63 to 610mm.

It is easily connected into the pipe via a 1/2 inch or 3/4 inch NPT compression fitting. ST51 uses constant power thermal dispersion drive technology, with a slightly heated sensor, which uniquely provides a subtle drying effect on

the sensors that results in effective measurement in moist measurement applications.

The ST50 electronics are housed in a rugged, IP67-rated enclosure with dual conduit ports in either NPT or M20 threading. The instrument comes standard with dual 4-20 mA outputs – one for flow rate, and one for temperature.

A 500Hz pulse output (for external totaliser) can be added as an option. The transmitter and electronics can be integrally mounted with the flow element, or be remote mounted to best match your installation situation.

The ST50 flow sensing element features precision, platinum RTD in small diameter, equal-mass, all-metal thermowells to provide superior accuracy, repeatability and fast response.

For further information contact AMS Instrumentation & Calibration on 03 9017 8225 in Australia or 0800 442 743 in New Zealand. Alternatively, email sales@ams-ic.com.au or visit www.ams-ic.com.au

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Flow Measurement Specialists

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Join us at our 2024 VIC Water Industry Operations Conference & Exhibition

Promoting best practice in water management by building the knowledge, skills and networks of operators.

• Listen to the experience of others through the latest “operational” technical and research based information through platform and poster presentations.

• View and discuss the latest advances in technical equipment, products and services with suppliers and trade consultants.

• Update their knowledge and skills through interaction with fellow water industry employees.

VIC

28 & 29 FEB BENDIGO

All industry personnel involved in the operation and maintenance of water related infrastructure for the management, conveyance, treatment, discharge and reuse of water and trade wastes should attend this conference.

• 20+ speakers over 2 days • 150 of the world’s leading water suppliers on display Hosted by

• Ixom 2024 Best Tasting Tap Water in VIC • VIC Main Tapping Competition

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CYBE R SE CURITY | Sponsored editorial

MEETING DIGITAL DEMANDS WITH ADVANCED CYBER SECURITY MODEL

The nbn network provides digital connectivity to more than 12 million premises nationwide and in today's interconnected world, digital security has become a paramount concern. nbn, the driving force behind lifting the digital capability of Australia, shares insights into the challenges and discusses its security model to fortify its network against cyber attack.

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n 2009, the Federal Government established NBN Co with a distinct purpose: to construct, develop, and manage a nationwide wholesale broadband access network for Australia. Since that time, the importance of cybersecurity has risen sharply.

Australian companies encounter many cyber security challenges, encompassing conventional and emerging threats. Anticipating the occurrence of data breaches or the precise timing of an impending threat is often a very complex task. nbn has adopted an “all hazards” or “converged” security model, which prioritises and aligns personnel, physical and cyber security to ensure fast and reliable connectivity and one that aims to create a safe and secure environment.

THREE LINES OF DEFENCE nbn's security model is based on a comprehensive understanding of security and follows the 'three lines of defence' principle to fortify its security measures.

• Line one comprises the operations team responsible for implementing and maintaining the security ecosystem, ensuring the availability and effectiveness of tools, processes, and controls.

•

•

Line two acts as an independent assessor and business partner of line one, identifying potential gaps, points of improvement or vulnerabilities and then working with the line to continually improve our effectiveness.

Line three provides independent assurance of lines one and two, providing appropriate governance, alignment and accountability are maintained.

MEETING FUTURE DIGITAL NEEDS During interactions with property developers, nbn aims to focus not just on current connectivity solutions but also on future-ready technology to help ensure that it's ready to meet the digital demands of tomorrow.

As nbn extends its connectivity services to new developments and, by proxy, becomes increasingly important to many dependent community services such as electronic signage and public Wi-Fi, nbn's supply chain continues to play a vital role.

Like any company, nbn faces the challenges of managing an extensive and complex supply chain. The supply chain's crucial role in ensuring the security of nbn is maintained, and the ongoing focus the organisation places on working collaboratively with its partners, will ensure this happens.

For more information, visit nbn.com.au

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Made to be sustainable nbn is committed to driving positive change for Australia.

We are continually implementing actions across diversity, inclusion, safety, governance, and sustainability including achieving Near-Term Science-Based emissions reductions and Net-Zero emissions no later than 2050.

We are focused on delivering positive and sustainable outcomes for Australia now and into the future.

Make nbn part of the plan

Find out how nbn can do more for your build Visit nbn.com.au/OurImpact

SO LAR

KING ISLAND: A BLUEPRINT FOR AUSTRALIA’S

clean energy future Isolated communities are often overlooked in the renewable energy conversation, but in order to meet net zero targets, off-grid communities need to reduce their reliance on fossil fuels. Hydro Tasmania’s recent addition of a $1.5M solar farm to its King Island Renewable Integration Project has become a blueprint for bringing renewable energy to isolated off-grid communities.

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itting in the waters of the Bass Strait, roughly halfway between Victoria and Tasmania, King Island is one of Tasmania’s most picturesque destinations.

It’s a place governed by the wind, sun and the sea. These powerful natural elements not only make King Island unlike anywhere else in Australia – but power the island itself.

There’s no connection to mainland electricity supply on the island and until the late 1990s this meant that the community relied entirely on diesel generators to keep the lights on.

Now, as a result of Hydro Tasmania’s efforts, the majority of King Island’s energy needs are being met by renewable wind and solar – something the island has in abundance.

RUNNING ON RENEWABLES In partnership with the Australian Renewable Energy Agency (ARENA), and consulting company, Entura, Hydro Tasmania delivered the King Island Renewable Integration Project (KIREIP) in 2013. A world-leading, hybrid off-grid power system that now supplies 65 per cent of King Island’s energy needs from renewable sources.

The system uses as much of the available renewable energy as possible, backed up by diesel generators if required, to provide stable and reliable power around the clock. It’s able to meet the needs of an entire community, more than 1,600 people, as well as business and industrial customers.

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This system works by bringing together a range of renewable technologies, including 2.45MW of wind generation and 1.5MW of solar PV, two 1MVA flywheels, a 3MW/1.5 MWh battery, and a 1.5MW dynamic resistor, all managed through an advanced hybrid control system.

When there is enough wind and solar to meet demand, diesel generation can be switched off, and switched back on as needed. This process is entirely automated delivering significant diesel savings, and ensures that rapid and unpredictable changes in sun or wind conditions do not interrupt power supply.

It was the first system of its kind to achieve extended continuous periods of zero-diesel or 100 per cent renewable energy generation at a megawatt scale, successfully overcoming daily peaks in demand, a world record at the time for a grid of this scale.

In 2013, the KIREIP was awarded the Energy Supply Association of Australia (ESAA) Innovation Award, and the United Nations Association of Australia World Environment Day Award in 2014.

Hydro Tasmania’s CEO, Ian Brooksbank, said the KIREIP has had a profound impact on King Island’s energy production.

“Over the past ten years, we’ve slashed diesel consumption on King Island by 50 per cent. That saves 2.1 million litres of diesel and cuts carbon emissions by 5,700t a year,” Mr Brooksbank said.

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THE NEXT BIG STEP FORWARD Ten years on in 2023, the island’s hybrid-power system took another leap forward with the completion of a new $3.35 million, 1.5MW solar farm comprised of 5,000 panels.

“The new solar farm will save an additional 300,000L in diesel and 800t in carbon emissions annually and deliver even greater reliability in electricity supply for local homes and businesses.

“This type of hybrid, renewable energy system is also a model for the national electricity market. How we integrate wind, solar and storage, while reducing fossil fuels and maintaining grid stability, is an important lesson as the nation transitions to renewable energy,” Mr Brooksbank said.

Isolated off-grid communities like King Island are often forgotten, or left out, of the renewable energy conversation, but all across the world off-grid communities are attempting to reduce their reliance on fossil fuels. Hydro Tasmania is working to further refine and commercialise this world-first approach, making the energy system more transportable and modular, streamlining logistics, transport and construction, enabling it to be deployed faster in more locations.

Mr Brooksbank said that lessons from the KIREIP have already been incorporated into other projects, such as the Flinders Island Hybrid Energy Hub and Rottnest Island Water and Renewable Energy Nexus projects.

“King Island has become a renewable energy blueprint for isolated off-grid communities in Australia and around the world and it continues to lead the way.”

The KIREIP also highlights the importance of community engagement and support for the renewable energy transition to be successful. King Island residents were instrumental in the planning and execution of the project. Local involvement not only ensures that the project aligns with the community's needs but also serves as a testament to the broader social acceptance and enthusiasm necessary for a successful transition to renewable energy.

THE JOURNEY TOWARDS NET ZERO The King Island solar farm development also supports Hydro Tasmania’s broader journey towards net zero. As one of Australia’s largest generators of renewable energy, Hydro Tasmania is also already one of the lowest emitters in the energy sector – at just 0.1 per cent of Australia’s biggest carbon emitter. But the team are striving to do more.

Renewable energy has never been more critical to a sustainable future as Australia and the world seek to reduce emissions to combat climate change.

As a business, Hydro Tasmania has committed to an ambitious plan and achievable path to net zero scope one and two emissions by 2025. This action plan is redefining the way we generate, distribute, and consume electricity, so we can address the impacts of climate change and help keep our planet healthy for future generations.

To learn more about Hydro Tasmania’s journey towards net zero, visit www.hydro.com.au/sustainability/towardsnetzero. Or, to follow the real-time performance of the King Island Renewable Integration Project head to www.hydro.com.au/clean-energy/hybrid-energy-solutions/success-stories/king-island

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SO LAR | Sponsored editorial

THE POWER OF BIOSOLIDS: FROM LANDFILL TO RENEWABLE ENERGY HUB

By Sze-Fei Peng, Principal Environmental Engineer / Sector Lead – Waste & Resource Recovery, Tonkin + Taylor

In a Victorian first, Melbourne’s Clarke Road metropolitan closed landfill site is set to be transformed into a utility-scale renewable energy facility. In preparation for this new infrastructure, the property owner collaborated with Tonkin + Taylor (T+T) and Chadwick Geotechnics to repurpose the site and mitigate the environmental risks.

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he Clarke Road landfill-to-a renewable energy hub (utility scale battery, solar and heavy EV charging facility) project has successfully obtained a planning permit and is currently in the design stage, with construction expected to commence in 2024. But in order for the project to go ahead, the existing site had to be rehabilitated. In a Victorian first, biosolids were used to create an innovative landfill cap to manage surface water flow, minimise leachate generation and serve as a foundation for renewable energy generation.

During its time as a landfill site, gas generated by the waste materials deposited at the site was collected and used for power generation, providing a valuable source of energy.

The landfill gas-to-energy facility operated at the site for over 25 years, but over time, landfill gas generation declined and power generation was no longer viable.

T+T and Chadwick Geotechnics, a specialist geotechnical testing company, were engaged to assess, design and implement the transition of the active landfill gas extraction system to a passive system to ensure landfill gas risks to the environment were safely managed. This rehabilitation was crucial to ensuring the new landfill-to-renewable energy hub project can go ahead.

PLAN OF ACTION At the same time, the Clarke Road landfill site was subject to an EPA abatement notice, which prompted the rehabilitation of the site itself and an assessment of the site’s potential environmental risks. T+T was asked to undertake this assessment of the site as a whole, including whether or not the existing landfill cap was in good condition.

The team found that the existing cap was of sufficient integrity and only required the surface grade to be improved, rather than replaced. A design was put together for reprofiling the site to enhance water drainage, prevent leachate generation and landfill gas surface emissions; all crucial steps in preparing the ground for the energy hub infrastructure.

EMBRACING BIOSOLIDS The reprofiling of the site required considerable depth and volume (over 600,000 cubic metres) of fill. As virgin fill is highly sought-after, expensive and contributes to the depletion of finite natural resources, an alternative was needed. Biosolids were identified as the ideal solution as

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they presented cost-effective advantages and aligned with the project's environmental ethos.

Sourced from Melbourne Water Corporation (MWC), these biosolids’ clay-rich composition made them well-suited for capping material. As they were locally available this also minimised transportation emissions.

Being a byproduct of wastewater treatment, biosolids were costly to dispose of and took up valuable landfill space. The utilisation of these biosolids stimulated a circular economy by transforming waste into a valuable resource.

NAVIGATING CHALLENGES AND EMBRACING COLLABORATION Biosolids perform well when capped over and surrounded by inert material, however they take on a slushy consistency when wet and turn to dust when dry. Meticulous planning, operational control, and adaptability was crucial to ensure that they were not impacted by weather conditions during construction.

The biosolids also needed to be clay rich. T+T carefully planned around supply and availability of material. The application of biosolids in this context was unprecedented in Victoria. It therefore necessitated special exemptions from the EPA, as it deviated from standard landfill rehabilitation guidelines.

Gaining the exemption required extensive collaboration between T+T, MWC, Progress Earth and EPA. This process involved demonstrating the material's suitability and compliance with EPA guidelines, showcasing a successful model of public-private partnership.

By repurposing waste materials and transforming a landfill site into a renewable energy facility, the Clarke Road landfill-to-renewable energy hub project elevates the standards of sustainable development. It serves as a model for similar initiatives worldwide, demonstrating that with creativity, collaboration and commitment, environmental challenges can be turned into opportunities for a greener future.

For more information about Tonkin + Taylor’s waste and resource recovery capabilities, visit www.tonkintaylor.com.au

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Complex challenges into sustainable solutions As a specialist provider of engineering and environmental services, Tonkin + Taylor brings your project ambitions to life.

We unlock the potential of your land with innovative solutions for renewable energy, commercial developments, and more.

Our expertise covers everything from geotechnical assessments to aftercare management, ensuring sustainable outcomes for communities and the environment.

Together we create and sustain a better world.

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SO LAR | Sponsored editorial

EMPOWERING AUSTRALIA'S

SOLAR REVOLUTION Australia's solar energy market stands at the forefront of renewable innovation, experiencing unprecedented growth and transforming the nation's energy landscape. To maximise this power on a national scale, comprehensive transmission strategies and grid integration technologies are essential.

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ueled by abundant sunlight and a commitment to sustainability, Australia has emerged as a global leader in harnessing solar power.

Unlike conventional power sources, solar energy generation is contingent on sunlight availability, resulting in fluctuations that can impact its reliability as a consistent power provider. Additionally, the vast expanse of Australia's geography introduces a set of logistical challenges in effectively connecting solar farms to the national grid.

The sheer size of the country necessitates intricate planning and infrastructure development to ensure that the generated solar power can be efficiently transmitted across regions, reaching even the most remote areas. This aspect of the solar energy equation underscores the need for comprehensive strategies and investments in grid integration technologies to maximize the benefits of solar energy on a nationwide scale.

To address these issues and unlock the full potential of solar energy, Nexans stands at the forefront of overcoming challenges in the solar energy sector, offering cuttingedge solutions that enhance the efficiency, reliability and sustainability of solar power systems in Australia.

SOLAR TRACKING SYSTEMS Nexans solar tracking systems leverage advanced technology to optimise solar panel exposure throughout the day. These intelligent systems dynamically adjust the angle and orientation of solar panels, enhancing energy capture and significantly improving overall efficiency. By mitigating intermittency challenges, Nexans ensures a more stable and reliable solar energy output.

over extended distances. With minimal energy loss during transmission, these cables facilitate the integration of solar farms into the grid, overcoming geographical constraints and ensuring a seamless flow of clean energy.

SMART GRID SOLUTIONS To address the complexities of grid integration, Nexans provides innovative smart grid solutions. These technologies enable the seamless integration of solar power into the existing energy grid, ensuring a smooth and efficient transition from conventional sources to renewable energy. Nexans' smart grid solutions allow real-time monitoring, control, and optimisation of energy flow, effectively managing challenges associated with the intermittent nature of solar power.

CUSTOMISED SOLAR SOLUTIONS FOR LARGESCALE PROJECTS By comprehending the unique requirements of each project, Nexans optimises cable configurations and energy transmission systems. This customisation not only enhances the overall efficiency of solar installations but also contributes to cost-effectiveness, rendering large-scale solar projects more economically viable.

As Australia progresses toward a sustainable energy future, Nexans looks to play a pivotal role in surmounting challenges encountered by the solar energy industry. Through the provision of customised solutions that enhance reliability, efficiency, and resilience, Nexans ensures the full harnessing of Australia's solar potential, contributing to a cleaner energy landscape. This commitment to innovation and sustainability underscores Nexans' leadership in advancing the solar energy sector.

MV CABLES FOR LONG-DISTANCE TRANSMISSION Australia's expansive terrain necessitates long-distance transmission solutions for connecting remote solar farms to the power grid. Nexans medium voltage (MV) cables are engineered to efficiently transmit substantial energy

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RELIABLE SOLUTIONS for power distribution & renewable generation

With an unwavering commitment to empowering Australia's journey towards a more sustainable future, your local manufacturer, Nexans Australia, delivers comprehensive and sustainable electrification solutions to meet the country's network requirements and the growing energy demands of the modern world.

Our dedicated efforts drive us forward, fostering a more sustainable future for all.

Contact us to discover our renewable solutions.

nexans.com.au

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AUSTRALIA’S PATH TO

RENEWABLE ENERGY SUPERPOWER

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When it comes to decarbonising the economy, Australia has the potential to punch above its weight to become a renewable energy superpower.

Achieving this ambition, however, will require significant investment into the industries of tomorrow. Initiatives such as ARENA’s Hydrogen Headstart have a critical role to play.

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cross the globe, governments are rolling out various energy transformation packages, increasing the pressure to remain competitive in the push to net zero.

While Australia can’t match the likes of the Biden administration’s Inflation Reduction Act, recent investments from the Australian Renewable Energy Agency (ARENA) tap into the country’s unique advantages in this evolving green energy landscape.

“The history of Australian innovation is rarely a history of inordinate sums of capital. Instead, we’ve played best when playing to our competitive advantages,” ARENA CEO Darren Miller said.

“The government’s Hydrogen Headstart program, administered by ARENA, is a timely example of Australia playing to our strengths. The program will deliver $2 billion in funding over ten years to help Australia capitalise on its natural resource advantages to become a hydrogen heavyweight.”

Australia’s natural resources are key to achieving the government’s renewable energy superpower vision.

“Our nation records the highest average solar radiation per square metre of any continent on Earth and our wind resources are among the best in the world.

“Australian renewables can satisfy our domestic energy needs, as well as be harnessed to transform our economy.

And that transformation will require hydrogen.”

THE ROLE OF RENEWABLE HYDROGEN The precise role hydrogen will play in Australia’s decarbonised economy remains unknown due to various factors, including the dynamic nature of the technology itself.

Addressing these uncertainties will require targeted investment and appropriate policy settings, designed for the evolving environment necessary for fostering innovation.

Mr Miller said hydrogen has the potential to help decarbonise heavy industries such as steel making and alumina production.

“Australia’s miners are the world’s leading exporters of iron ore and the world’s largest producers of bauxite. If key markets start imposing green tariffs, then opportunities should appear for Australia to process emissions-free products rather than just export raw materials.

“Hydrogen has the potential to become a leading emissions-free fuel for powering long distance heavy land transport, planes and shipping. Together, these account for around 10 per cent of all global emissions.”

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Hydrogen is a key ingredient in ammonia, which in turn is vital for fertiliser production and many manufacturing processes.

“All told, high potential renewable hydrogen applications could tackle up to 15 per cent of global emissions. Closer to home, hydrogen is key to preserving domestic industries, not to mention helping to create new export opportunities that could even exceed our current fossil fuel revenues.”

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HYDROGEN HEADSTART Against this background, the Hydrogen Headstart initiative will offer financial support to bridge the current economic gap for participants. It is intended to scale up green hydrogen production in Australia to allow the country to compete on the global stage.

“In that regard, Hydrogen Headstart is our first big step towards achieving our renewable energy superpower vision,” Mr Miller said.

“Achieving that bold superpower vision requires an equally bold strategic approach, but boldness will be rewarded with benefits to our economy and the climate.

“The alternative is an Australia continually playing catch-up with other economies and potentially losing out as the world makes its inevitable shift to net zero.”

As Australia scales-up its green hydrogen production, building an all-australian hydrogen electrolyser, like the pioneering technology being developed by Hysata, becomes critical.

ARENA’s support has helped develop this project, which is getting the chance to prove itself at a commercial scale.

Queensland Government-owned power company Stanwell Corporation is providing the site and facilities where the system’s trial will take place, and backing the project with $3 million.

If it works, the project has the potential to transform the economics of renewable hydrogen production.

Mr Miller says the project is a crucial step to enabling purchase orders for the technology.

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That’s a huge jump on current technologies, which operate with efficiencies closer to 75 per cent.

To put that in context, to make renewable hydrogen competitive with its fossil-fuel derived alternative, the International Renewable Energy Agency (IRENA) in 2020 set an electrolyser efficiency target of up to 85 per cent … by 2050.

MAKING PROGRESS Hysata CEO Paul Barrett said the project marked a significant milestone.

“Green hydrogen is critical for decarbonisation of hard-toabate sectors. We are committed to helping our customers deliver the world’s lowest cost green hydrogen.

“With exceptional 95 per cent efficiency combined with cost-effective materials and reduced engineering, procurement and construction (EPC) costs, Hysata’s “Hysata’s electrolyser technology could be a game-changer for renewable hydrogen.

“The demonstration at Stanwell’s site will be key to unlocking commercial demand for Hysata’s product by proving the technology works at scale.”

Currently, the production cost of renewable hydrogen (using renewable energy) is at least twice that of hydrogen produced from fossil fuels. Hysata says its technology will slash costs and produce hydrogen “well below” a competitive target price of $2 per kilogram (approx. US$1.50/kg).

HYSATA’S TECHNOLOGY EXPLAINED Until now, electrolysers have produced a lot of heat due to electrical resistance. The heat generated is not only wasted energy, but it must also be removed. Electrolysers need a lot of cooling and that uses even more energy.

Hysata has tackled this problem by completely redesigning their electrolyser to remove all the main sources of electrical resistance. It turns out, that means eliminating hydrogen and oxygen bubbles. When bubbles form on the electrolyser’s electrodes, they reduce the surface area available for electrolysis and increase resistance.

Hysata says it has completely eliminated bubbles from its system and cut electrical resistance to virtually zero. As a result, Hysata says it expects a fully operational electrolyser will stay cool through good air ventilation alone.

The combined effect is what has raised the overall efficiency of a Hysata electrolyser to around 95 per cent.

electrolyser will transform the economics of green hydrogen production.”

Stanwell CEO Michael O’Rourke said Hysata represented an important step in developing Queensland’s renewable hydrogen industry.

“The development of a renewable hydrogen industry is a key component of our energy transformation.

“The potential to utilise high efficiency Australian technology in large-scale hydrogen projects would be a real advantage.”

Initial development of the system is currently underway, with the field pilot at Stanwell due to commence in 2025.

To read more about ARENA Hydrogen Headstart program visit www.arena.gov.au

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EN E RGY NE TWORKS | Sponsored editorial

EV DBS AND EV LOAD MANAGEMENT SYSTEMS: WHAT YOU NEED TO KNOW As we move towards a greener and more sustainable future, the adoption of electric vehicles (EVs) is rapidly gaining momentum. To this end, the introduction of the National Construction Code (NCC) 2022 means that a dedicated electric vehicle distribution board (EV DB) is required for new buildings, a certain percentage of parking spaces in new developments and in significant renovations being equipped with EV charging points.

EV charging mode 1 The EV is directly connected to a household socket. It’s the simplest charging method, with a maximum current of 16A and voltage up to 250V for singlephase systems or 480V for three-phase networks.

EV charging mode 2 Addresses safety concerns related to using standard household sockets. It uses a special charging cable equipped with an in-cable control and protection device. The maximum current is 32A, with a voltage up to 250V (single-phase) or 480 V (three-phase).

EV charging mode 3 Employs several control and protection functions for public safety. It delivers AC current to the EV’s on-board charger and various power levels are possible, depending on the charging station.

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dedicated EV distribution board is designed to handle the unique electrical demands of multiple EV chargers simultaneously. It ensures a seamless and optimised charging experience for EV users while preventing overloads and electrical hazards.

AN ESSENTIAL IN EV CHARGING SOLUTIONS As the number of EVs on Australian roads increases, load management becomes a critical aspect of EV charging infrastructure. Load management refers to the strategic control of the electricity demand to prevent grid overloads and power supply issues. It ensures that EVs can be charged efficiently without putting undue stress on the electrical grid.

New buildings and renovations should employ load management strategies such as smart charging and demand response technologies to stagger the charging times of multiple EVs. By doing so, you can avoid peak demand spikes, maximise the utilisation of renewable energy sources and minimise the cost of charging.

NHP has just launched EnergySync, a cutting-edge load management system that can be easily fitted to your EV DB. There are several modes of EV charging, each offering unique benefits and use cases.

EV charging mode 4 Delivers DC current directly to the EV battery, bypassing the on-board charger. It is typically used for fast charging stations.

Remember, the choice of charging mode depends on factors like convenience, safety and charging speed.

Whether you’re charging at home or using public charging stations, understanding these modes helps optimise your EV charging experience.

As the demand for EV charging infrastructure soars in Australia, the utilities sector is in a pivotal position to drive change. To help you take advantage of this transformative opportunity, NHP has partnered with Delta – one of the world’s largest EV charger manufacturers – to bring a range of high-quality EV charging products to the local market which are suitable for most applications in most industries, as well as councils and commercial and residential buildings.

NHP offers a range of Delta EV chargers from the basic 7kW AC option to the 350kW ultra-fast charging option. The company’s team of dedicated engineers have also developed in-house solutions to meet local changing EV infrastructure needs, including EV readiness site assessment services and NCC compliant EV DBs, which can incorporate NHP’s new cutting-edge load management system, EnergySync.

For more information, please call 1300 647 647 or go to nhp.com.au/EV

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Instantly boost your site’s power quality NHP has a wide range of Delta solutions to cater for power factor correction and harmonics: ■

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EN E RGY NE TWORKS

BALANCING ACT:

FUTURE-PROOFING AUSTRALIA’S ELECTRICITY NETWORK

By Renate Vogt, General Manager, Regulation, CitiPower & Powercor

Australians are facing a period of unprecedented change that is transforming both our energy systems and our relationship with energy as consumers.

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he changing climate is bringing hotter temperatures and more frequent and extreme weather events. This means more power is needed to heat and cool our homes and workplaces, and our distribution networks need to be more resilient to withstand storms, fires and floods.

Increased deployment of renewable energy technologies is transforming our energy systems. Aside from reducing emissions, they are enabling Australians to become active participants in the market, rather than just passive consumers.

We’re seeing an increase in the electrification of our homes, industries and transport. In Victoria, this will gather pace when the ban on new RENATE VOGT, GENERAL MANAGER, REGULATION, CITIPOWER & POWERCOR home gas connections takes effect in the new year. Electric vehicle (EV) ownership is also on the rise, meaning more electricity and to consider the full spectrum of views about future electricity more charging facilities are required. needs and how networks need to operate and evolve. This Finally, we’re seeing fundamental shifts in how we includes city and suburb dwellers, as well people living in live, work, play and learn – driven and enabled by new rural and regional areas, high- and low-income earners, young technologies. One major trend is the increase in working and old, and the full range of abilities including the most from home, which has meant greater day-time energy needs vulnerable, because no one should be left behind as the in our homes. system evolves and transitions to renewables.

All these things have major implications for our electricity As part of this effort, Monash University’s Emerging distribution networks, including how much energy we need Technologies Research Lab recently conducted an innovative to deliver, and how, where and when it gets distributed to study to understand future customer behavioural trends. our businesses, schools, hospitals and homes.

Researchers worked with 36 households and analysed 1,325 customer survey responses to develop the Future Home THE POWER OF INNOVATION Demand Report.

Continuous innovation is needed to make sure the The report shows there are fundamental shifts happening networks can handle the increasingly complex and in the way Victorians consume and manage energy, with sophisticated systems they support, today and into the 51 specific trends identified that will affect Victoria’s future future. Our distributed energy resources – from centralised energy needs. The increase in home-based care, a rise in the power generation facilities to rooftop solar, batteries, smart energy needs to support study and work from home and the appliances, electric vehicles and future innovations – need increased adoption of EVs are among the key trends. to be integrated in a safe, fair, efficient and flexible way, so The research will be used to inform our future business everyone benefits. and investment planning. It will help us assist vulnerable Every five years, distribution network operators across customers, protect energy supplies to our communities, the country are required to prepare proposals that outline forecast demand and energy growth, set network their plans and investments in the coming five-year period. tariffs, connect customers and design smarter demand Proposals are submitted to the Australian Energy Regulator management programs, among other things. for approval in a process known as the Regulatory Reset.

For distribution network operators like us, research like Proposals are currently being shaped for the 2026–2031 this provides critical indicators as to where we need to period and drafts will be submitted in August. focus our efforts and investments to evolve and future-proof the distribution network, to keep pace with customers’ STRIKING A BALANCE changing needs.

The dynamic energy landscape that will evolve over the Network forecasting and investment planning has always coming five-year period is coinciding with a cost-of-living been a balancing act, but in such a fast-changing energy crisis, which puts even more pressure than usual to manage market, the stakes are high, and input from our customers costs so energy remains affordable for all. will help ensure we put the right foot forward.

To balance all competing priorities, future network planning needs to be informed by consultation with customers, and

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S E W E R R E H AB I LI TAT I O N

UPGRADING BARWON WATER’S SEWER NETWORK for environmental protection

In an effort to extend the lifespan of its pipelines and protect the environment from harmful spills, Barwon Water is investing $50 million over the next five years on upgrades and repairs to its sewer system, spanning Geelong, the Colac Otway Shire, Surf Coast, and the Bellarine.

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arwon Water Managing Director, Shaun Cumming, said the significant program was part of Barwon Water’s commitment to its customers, as outlined in the 2023 Price Submission.

“Works in the program will renew hundreds of pipes, extending their lifespan and minimising the risk of blockages and sewer spills."

Mr Cumming highlighted the advanced techniques employed in the initiative.

"Our contractors utilise CCTV to monitor the condition of ageing sewer pipes.

“After high-pressure water cleaning, structural liners, often polyester coated felt tube liners, are

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SEWE R RE HAB IL ITATION inserted or pulled into the existing pipeline via maintenance holes, essentially creating a pipe-within-a-pipe.

“This innovative approach reinforces and extends the life of the pipes, while reducing disruption on customers."

SENSING A SPILL-FREE FUTURE The sewer upgrade investment program of works is only part of the picture, with Barwon Water conducting research with partners on a number of different technologies to help it move towards zero spills in the future.

One of these initiatives was a sensor trial in the Lorne sewer network, with technology that in the future may be able to be used to preemptively address sewer overflows.

The Lorne sewer network was chosen due to its smaller size and self-contained nature of the system, which made it suitable for a trial of this technology. The network, like all sewer networks, suffered from occasional overflows due to various factors, including tree roots and improper disposals.

Mr Cumming said the trial aligned with Barwon Water’s aim to provide innovative and reliable services to its customers.

"The sensors track the depth and flow of sewerage at various points in the system, transmitting valuable data to Barwon Water staff.

“Our goal is to use this data to swiftly identify partial blockages and take pre-emptive action to remove them before overflows occur.”

The trial involved installing sensors at 15 locations along the Lorne foreshore, and as part of a strategic partnership with Deakin University scholars developing an algorithm to analyse the gathered sensor data.

During the trial, a few blockages were detected at their early stages, and no significant sewer spill events occurred.

The potential success of the trial could lead to a broader rollout of these sensors across the region's sewer network.

This initiative showcases Barwon Water's commitment to leveraging technology, partnerships and innovation to enhance the reliability of the sewer network, protect the environment, and ensure sustainable wastewater management.

SEWER SIMULATOR Coupled with this research was another project with Deakin University that offered another way to revolutionise urban wastewater management.

The initiative, funded by Barwon Water and Victoria’s Intelligent Water Networks, presents experimental results shedding light on how extended bottom blockages and discrete top blockages impact flow conditions in gravity sewer systems.

A transparent circular open channel experimental system, constructed at Deakin University, simulated a gravity sewer pipe.

Extended bottom and discrete top blockages, simulating foreign objects, wipes, sediment deposits, tree roots and fatbergs, were inserted into the system and tested with varying flow rates.

The impact of these blockages was assessed by measuring the flow depth just upstream of the blockage.

The results offer fundamental knowledge essential for cost-effective sewer blockage detection through distributed sewer depth monitoring.

"Understanding how different types of blockages affect flow conditions is crucial for developing effective and targeted solutions,” Mr Cumming said.

“Our research provides insights into the dynamics of sewer systems, enabling us to advance the field of sewer blockage prevention."

KEY FINDINGS Blockages in sewer pipe networks can lead to various issues, including spills and service interruptions.

While "smart sewer" monitoring systems similar to that trialled in Lorne exist, their data analytics often rely on simple threshold alarms, resulting in false positives and negatives.

This knowledge gap is being addressed by the research project, which aims to enhance understanding through comprehensive experimental results.

Key highlights of the research: • Both types of blockages (extended bottom blockages and discrete top blockages) were found to significantly increase the upstream flow depth under certain conditions • The impact of extended bottom blockages is proportional to the height of blockage and the flow rate and the change in upstream flow depth is gradual, presenting opportunities for early detection • Discrete top blockages are typically disguised and unnoticeable under low flow rates, but can suddenly induce choking when the flow depth reaches the blockage under high flow rates The outcomes of this research have far-reaching implications for sewer management, providing valuable data for the development of advanced sewer monitoring systems.

THE POWER OF KNOWLEDGE SHARING Barwon Water is committed to collaborating with stakeholders and communities to implement sustainable solutions that protect our environment.

Public education is also a key aspect of Barwon Water’s approach to managing the sewerage system.

“We have a campaign called Don’t flush it!, which urges customers to not treat their toilet like a rubbish bin and to only flush the ‘three Ps’ (pee, poo and toilet paper).”

The campaign targets people who often dispose of things like flushable wet wipes, cotton buds, sanitary items, food scraps and cooking fats and oils in their toilets and drains, leading to blockages.

“This is a serious issue as these blockages can lead to raw sewage spilling out into streets or creeks, or even people’s properties.”

Not only do blockages wreak havoc with Barwon Water’s sewerage systems, residents and businesses are often left with expensive plumbing and repair bills.

For more information, see barwonwater.vic.gov.au/water-and-waste/sewage/don't-flush-it

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SEWE R RE HAB IL ITATION | Sponsored editorial

PIPELINE PLANT HIRE

riding crest of water industry wave with VacLift For more than 20 years Pipeline Plant Hire’s VacLift equipment has been the gold standard for safety and efficiency on Australian water pipeline construction projects. Director, Gerard O’Brien, and business partner Global Pipeline Equipment’s Mat Dridan explain why.

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ustralia is home to some of the driest inhabited areas on the planet, which makes access to safe and reliable water supplies vitally important, especially for remote communities,” Pipeline Plant Hire’s Director, Gerard O’Brien, said.

As existing pipelines are expanded, transportation of large volumes of water over greater distances with minimum evaporation loss plays an increasing role in supporting Australia’s future, and Pipeline Plant Hire’s expertise is in more demand than ever.

BREAKING RECORDS One example of this is the Wentworth to Broken Hill Pipeline, a project that saw Pipeline Plant Hire’s unique VacLift equipment achieve a record-breaking rate of pipe laying.

“Our vacuum pipe handling equipment creates distance between the workers and the pipe, reducing the risk of injury and dramatically improving the cycle time for each pipe movement, and that in turn enables our customers to complete

their work faster without compromising on safety,” Mr O’Brien said.

HOW DOES IT WORK? VacLift works by using a vacuum to suck pipe lengths into the grasp of an attachment fitted with rubber seals called a ‘shoe’ that raises lengths of poly or steel pipe weighing up to 15t, without causing damage during the lifting process.

Mr Dridan said that this results in enormous time and cost savings for customers, as the VacLift cycle time is under 40 seconds per pipe length, whereas conventional methods take between five and ten minutes.

The VacLift system is available for customers to hire as a fully integrated, ready-to-use system consisting of an excavator, fitted with a VacLift unit and mounted on the counterweight of the machine – to provide maximum safe lift capacity.

“We’ve also developed a VacLift attachment that can be fitted to the customer’s own machine using auxiliary hydraulics to power and control operations,” Mr Dridan said.

“Since the equipment has been designed to only lift or release the pipe lengths in a grounded position, it’s almost impossible to drop the pipe, and also safeguards any personnel involved, and protects the lifting equipment.”

Traditional methods of pipe handling put workers at risk when attaching and detaching slings and hooks, but VacLift significantly reduces the dangers involved.

“Removing workers, slings and hooks from the process allows the VacLift operator to lift and, for water

pipelines, lay the pipe themselves,” Mr O’Brien said.

“We’ve invested millions of dollars in making pipe handling safer and in doing so we’ve enabled tens of millions of safe pipe movements, without so much as a paper cut attributed to our equipment.”

HOME TO A RANGE OF INNOVATIVE SOLUTIONS Pipeline Plant Hire has a wide range of equipment, providing everything from buckets, rock breakers and augers, to material adaptors, beams and shoes.

“All our equipment is designed and manufactured in Australia. Our range includes small units used to feed poly pipe, fusion welding machines lifting hundreds of kilograms each, and large units capable of lifting large diameter, high pressure steel pipe at weights that exceed 12 tonnes,” Mr Dridan said.

“With the combined development of our rear mounted vacuum lifts, patented throughput of vacuum at the rotator, expanded range in pipe diameter per shoe and many other proven technical advantages, we’ve contributed massively to efficiency gains in the pipeline industry.”

As a leading supplier of plant machinery and construction services, the company has been providing long term solutions to Tier 1 companies and civil clients for more than 30 years and is looking forward to setting the benchmark for many years to come.

“Working with manufacturers, suppliers and customers, we continue to provide improvements and innovations wherever we can, and there’s plenty more in the pipeline,” Mr O’Brien said.

Find out more at pipelineplanthire.com.au

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DI ST RIBUT E D GENERATION

MOVING TO NET ZERO: Australia’s first portable hydrogen SAPS

Boundary Power’s Hydrogen Integrated Stand-Alone Power System (HiSAPS) demonstration unit is Australia’s first relocatable hydrogen SAPS. We take a look at this ambitious project, and how Boundary Power’s adaptability allowed it to work with multiple collaborators to deliver it.

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he first HiSAPS demonstration unit was unveiled in October 2023, at the Ampcontrol manufacturing site in Ringwood, Victoria. Today, it is being used to power the facility’s internal lighting. In the future, the technological insights from this prototype can be used to develop a commercialised solution that could be transported to anywhere within Australia.

A LEAP INTO THE FUTURE Boundary Power’s HiSAPS is a leap forward in the development of future energy systems. Stand-alone power systems are designed to rely on a back-up diesel generator during times of insufficient solar, or battery charge.

This design replaces the diesel generator with a hydrogen system that uses excess solar to make hydrogen, which is stored and used to generate electricity when solar and battery systems are low. It uses 100 per cent renewable energy and it’s 100 per cent relocatable.

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Portability changes the power equation, opening up more possibilities for net zero electricity generation.

with industry to enable a smooth transition into a clean, reliable, and affordable energy future.”

THE POWER OF COLLABORATION HiSAPS is a collaboration between Boundary Power and hydrogen storage specialist, LAVO. An advanced all-in one hydrogen system was installed within Boundary Power’s award-winning Solar Qube® product, a modular, relocatable standalone power system.

HiSAPS gives a glimpse into the future of how Australia might balance remote utility-grade power generation needs, with pressing climate issues.

This innovative technology is the result of an innovative working model.

The research, development and implementation were made possible with funding from the Victorian Government under the Renewable Hydrogen Industry Development Plan.

Boundary Power Director, Rod Henderson, said, “HiSAPS is a brilliant example of collaboration – investment from government, working together

VALUABLE LEARNINGS This proof of concept project creates valuable learnings for the future of hydrogen power.

As the system’s performance is monitored over the next 12 months, the joint venture partners will deepen their knowledge of the technical, safety and regulatory aspects of integrating a hydrogen fuel cell into a stand-alone power system.

The insights they’ve gained in building hydrogen systems to store and provide energy as required, will assist future designs of SAPS and renewable solutions.

“Hydrogen power is ultimately human powered. In bringing this project to life, the skills and knowledge of everyone involved have increased dramatically,” Mr Henderson said.

“As the renewable energy sector continues to expand, a project like this ensures Australia’s workforce has the

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technical capabilities and experience for the jobs of tomorrow.”

The HiSAPS project is also helping lawmakers prepare for the future, as the safe and efficient installation of hydrogen systems present new complexity to the gas certification regulatory frameworks at both a state and national level.

Although this current iteration of HiSAPS is not available for commercial use, the insights from this project are immeasurable, providing significant benefit to future-forward companies like Boundary Power, as they continue to make inroads into research and development, implementation and commercialisation of future net zero systems.

Victorian Minister for Climate Action, Lily D’Ambrosio, said that the government is proud to support initiatives like the HiSAPS, which will be critical to meeting its world-leading emission reduction targets and helping to create 59,000 jobs by 2035.

“We’re supporting research and development in the renewable hydrogen sector to better understand the role it could play in Victoria’s renewable energy transition,” Ms D’Ambrosio said.

MEETING EMISSIONS TARGETS Boundary Power has significant expertise in providing end-of-grid power solutions to remote and rural locations.

The utility grade R-Series SAPS has been extensively deployed to regional Western Australia with the farming community being grateful recipients.

End-of-grid customers are accustomed to frequent outages as traditional poles and wires networks are subjected to the harsh climate, wildlife and even machinery damage.

“The SAPS solution gives them something that they thought they could never have – a safe and reliable power supply for uninterrupted farming operations,” Mr Henderson says.

As displayed with the HiSAPS, the core product range can be customised to meet existing and future power needs. From small loads through to large, more scalable SAPS, Boundary Power’s team can engineer a solution that can be readily deployed.

Like HiSAPS, Boundary Power is the result of a successful collaboration and was formed as a joint venture between Horizon Power and Ampcontrol.

Horizon Power supplies energy to 35,000 residential and 9,000 business customers in regional Western Australia. The energy provider has a demonstrated history of delivering

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successful world-first and Australia-first technical trials and is a progressive innovator on the journey towards net zero. Australian-owned and operated Ampcontrol prides itself in solving complex problems in energy with expertise in developing world-first innovations, helping industry to decarbonise.

Simon Duggan, Boundary Power General Manager, said, “Our vision at Boundary Power is to lead the energy transition with advancements in stand-alone power system design and technology. Our utility grade, renewable and reliable power solutions have been deployed across Australia since 2019.”

In its short history, this renewablesled company has already emerged as an industry pioneer and was awarded ‘Energy Innovation of the Year’ at the Australian Institute of Energy’s 2021 WA Energy Awards.

Given the enormity of the challenge posed by a changing climate, hydrogen systems will only be part of the solution in achieving net zero. What Hi-SAPS does demonstrate is that collaboration, innovation and forward thinking can create design synergy that exceeds the collective impact of its individual elements. HiSAPS is greater than the sum of its parts.

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MICROGRID, MACRO IMPACT:

THE KIOLOA COMMUNITY MICROGRID INSTALLATION PROJECT Endeavour Energy has officially launched the Bawley Point and Kioloa community microgrid, denoting a huge success for the utility’s plan to improve grid reliability in the area. We spoke to Endeavour Energy's Future Grid Strategy Manager, Dr James Hazelton, one of the key drivers of the project, to discuss the project and how distributed energy resources can be a fantastic resource during extreme weather events.

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n March 2022, Endeavour Energy announced a plan to power 1000 homes in Bawley Point and Kioloa – two coastal towns about 250km south of Sydney – with subsidised solar panels and/or batteries to help create the first community microgrid of its kind in New South Wales.

The microgrid was officially launched on 8 December 2023, marking a major milestone for the energisation of the project.

SECURING ELECTRICITY SUPPLY FOR REMOTE AREAS If you haven’t heard of Kioloa or Bawley Point, don’t worry – you’re not alone. These picturesque towns on the South Coast of New South Wales are home to only about 1,000 permanent residents, and are at the very southern tip of the Endeavour Energy network.

Rural and remote areas like these are more vulnerable to service interruption due to the long distances of overhead lines, and prevalence of storm and bushfires.

This was one of several factors that led Endeavour Energy to designate this area a prime candidate for a microgrid installation.

Dr Hazelton explained, “We've always had a different level of reliability down there.

The community can experience large swings in demand because it's a popular holiday destination. “[What we see is a big difference between] the average load versus what happens in the peak demand periods. As the population goes from around 1000 to over 4000, the load then goes from being about an average of 700kW to up to about 2.8MW in peak demand times. So it's a four-times increase in load.”

Managing this increasing load and making good use of the community's own generation resources was a major driver

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in establishing the microgrid. Endeavour Energy’s planning team investigated ways to manage the demand.

"We were looking at a new zone substation further inland at Termeil, about 10km up the road. But the network part itself would actually be about 30km.

“If we built that substation, we'd still be relying on putting overhead power lines through that bushland, so we decided we'd look at other options other options and there was a lot of opportunity to work with community and better use their resources. We had done one network battery system before and we decided that, particularly after the bushfires in 2020, that was an opportunity where the community was out of power for a long time and that resilience conversation really came up. Having been through tough times the community were very engaged and both willing to work with us and contribute to get a more reliable power supply,” Dr Hazelton explained.

And so the project became a case of two birds, one stone: helping to stabilise the grid during peak demand periods while also enabling a critical service should the area encounter extreme weather conditions.

EMPOWERING COMMUNITIES WITH DER Distributed energy resources (DER) are becoming recognised as one of the most critical resources for communities facing extreme weather conditions. DER are any energy resources that do not rely on the main grid to produce and distribute electricity. During extreme weather events, rural and remote areas are often cut off from the main energy grid, as the transmission assets can be particularly vulnerable to extreme weather. Empowering communities with locally generated energy can be a lifesaving measure in these critical times.

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Dr Hazelton said, “In the instance that we need it, as a community benefit or that a person doesn't need the electricity that they have, we can send a control signal through our Distributed Energy Resource Management System to ask them to charge or discharge their batteries.

That can help us either extend the length through which we can island the network, or can help us better manage local supply and power quality.

“Most of the time the time the DER is being used to reduce customers bills. In the instance that we need to call upon those customer owned assets participating in the program we will be able send a control signal though our.

“In terms of re-energizing the network we can do a lot of this locally now, and that allows new innovative solutions to happen. We're not depending on the wider grid to provide power and all the kilometres of lines that run through the bushland. That has implications for resilience, but also in terms of sustainability and how customers can generate more.”

PLANNING AHEAD OF EXTREME WEATHER EVENTS While not yet fully implemented, Endeavour Energy isworking to continue to improve the system as we learn from the project, and is keeping the community in the loop as to what is likely to occur with their power and devices.

“We are looking to forecast events such as storms, just as we do for the rest of our network.

We would charge the batteries first, so that the community has as much local energy available as possible in the lead up to an event. Then when an upstream outage occurs on our main network we would re-energise from the large network

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battery and use customer's DER to help extend and sustain the power for much longer duration." Dr Hazelton said.

The project was developed through extensive community consultation, with locals providing critical insight and support not only for the project, but for helping others in the community via the sharing of resources. While this is achievable with a smaller community, replicating the project’s success at a larger scale may prove challenging.

Dr Hazelton said, “One of the most important parts of this project is how we've been working with the community to build this microgrid, together. We asked the community for their guidance on what they believed would be a fair subsidy to be paid by residents to be part of the program and how to make it inclusive.

“They wanted to see us put in something that was a bit fairer. So, we developed the social tier, which was solar subsidies for customers that couldn't participate in the other program and were eligible for some concessional benefit – people like veterans, NDIS participants, pension and healthcare cardholders.

“All of those things fed into the program and I think we've built a lot of trust in doing it that way. “ This microgrid is really a win for the community, our customers, the network and environment. Microgrids are really the future of energy. It will change the way we approach the design and planning of the network. These solutions make our networks more resilient, creating islands of power that can support our communities when they need it the most."

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BUILDING ON SUSTA HYDROGEN POWER

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INABLE PRACTICES: IN CONSTRUCTION

By Kody Cook, Journalist, Utility Magazine

With the drive toward carbon neutrality becoming increasingly prevalent in Australia, it's critical for utilities to be on the lookout for technologies that can keep their operations as sustainable as possible. As part of an ongoing effort to reduce its carbon footprint, Sydney Water is powering the construction of a major infrastructure project with hydrogen.

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hile searching for ways to reduce its carbon emissions during construction of the $1.2 billion Upper South Creek Advanced Water Recycling Centre (AWRC) at Kemp Creek, Sydney Water’s construction partner, John Holland, presented the idea of substituting its diesel field generator with a hydrogen one.

Together, the companies conducted a 28-day trial of a revolutionary hydrogen generator to help power the construction of the AWRC.

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THE UPPER SOUTH CREEK AWRC Located between Kemps and South Creek in the Western Parkland City, the AWRC facility will service up to 400,000 dwellings in the Western Sydney Aerotropolis Growth area and, once constructed, will be one of the most advanced wastewater recycling facilities in the southern hemisphere.

The facility’s primary function is wastewater treatment but that’s far from the only service to be performed by the facility. When complete, the plant is set to provide recycled water, energy generation and waste reuse to the community.

The AWRC is designed to collect wastewater from the Western Sydney Aerotropolis Growth areas and treat it to the highest quality of water possible, called advanced quality water. The technology used is called reverse osmosis – the technology used in desalination plants – where wastewater from homes and businesses is treated to produce recycled water for a range of residential, agricultural and industrial uses.

The plant will also be used to process other organic waste – such as food, fats, oils and greases – to create useful biogases and biosolids, making it one of the greenest infrastructure investments in New South Wales.

More than 80 per cent of Australia’s food waste is currently disposed of in landfill, where it decomposes to form methane, a potent greenhouse gas.

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Sydney Water’s modelling found that the AWRC could divert up to 30,000t of organic waste from landfill per year by 2030.

The move to a circular economy is an essential one and, once complete, the AWRC is positioned to have an incredibly positive impact on the environment. However, another important consideration that needs to be made is how the emissions produced during construction of this facility can be reduced.

Construction and building activity accounts for 18.1 per cent of Australia’s carbon footprint, and makes up 40 per cent of landfill waste, making the sector one of the country’s largest contributors to greenhouse gas.

Building the Upper South Creek AWRC is no small task, and a job that will require a significant amount of power.

Diesel generators are often the power source of choice for construction sites, however in addition to being noisy they also rely on the burning of fossil fuels – a process well-known for producing harmful carbon emissions.

To combat this, Sydney Water and its construction partner looked into hydrogen generators as a potential solution.

HYDROGEN-POWERED EQUIPMENT: A QUIET ACHIEVER There are significant benefits that come with using a hydrogen generator instead of diesel. Hydrogen

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is considered a clean energy source, as it doesn’t produce harmful greenhouse gases or pollutants when burned, making it an environmentally-friendly alternative to diesel – which currently powers generators and machinery at most construction sites around the country.

Sydney Water’s Environment and Sustainability Manager for Major Projects, Gill Fowler, said that hydrogen power could be a viable alternative for the future.

“The adoption of hydrogen technology positions Sydney Water at the forefront of innovation in the industry, potentially attracting future partnerships, and investment opportunities that align with our clean energy goals.”

Ms Fowler, said that Sydney Water has a target to be carbon zero in its operations by 2030 and then in its supply chain or Scope 3 emissions by 2040. “To do that, we're looking at ways that we can reduce our carbon emissions, through energy usage or more energy efficient technology, alternative sources of energy, renewable energy, and also looking at the types of materials we use.”“The trial was carried out for 28 days on the site. It was put in place because the site is a greenfield site, meaning there was no power to it.

“This was an opportunity to power the site with a hydrogen generator rather than a diesel generator. Over the four-week trial, 28 days, we saw a reduction of just over 12t of carbon for that period.”

Noise reduction is another major advantage, with hydrogen-powered equipment being quieter than its diesel counterparts, which is especially advantageous for construction projects in noise-sensitive areas, such as urban environments or near residential neighbourhoods.

“It's much quieter than our diesel generators. When you're standing next to it, you don't actually hear noise. That's a big benefit of utilising a hydrogen generator within our construction projects. It's got a much better amenity.”

This factor is also incredibly valuable for projects that require work to extend outside of daylight hours.

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DI ST R I B U T E D G E N E R AT I O N “Some construction projects require night work. If they need a generator to power lights, or to power site sheds, if a hydrogen generator is used, then that removes that noise that would otherwise come from a diesel generator, and be a disturbance to nearby residents.”

Ms Fowler explained that as part of its delivery of the AWRC project, John Holland led the trial and worked with suppliers to have the hydrogen generator with the hydrogen fuel installed and operating.

HYDROGEN GENERATORS, HOW DO THEY WORK? The GEH2 Hydrogen generator utilises the combination of a hydrogen fuel cell and a lithium-ion iron phosphate battery and has the equivalent power of a diesel generator.

The 100kVA hydrogen generator can power more than 70 homes at any one time.

The utilisation of a hydrogen generator in place of a traditional dieselpowered generator for a working year would eliminate 152t of greenhouse gas emissions being released into the atmosphere. Transitioning to clean emitting hydrogen generators similar to that used in this trial is equivalent to taking 50 cars off Australian roads every year.

They can be used in construction projects on any site that does not otherwise have access to the electricity necessary to power cranes, and other heavy equipment.

Hydrogen generators produce energy by burning H2 gas. Interestingly, hydrogen is considered the single most abundant element in the known universe, yet it very rarely occurs naturally on Earth in its pure gaseous form. It needs to be produced artificially, which is why a rapidly

expanding hydrogen industry is being established right here in Australia, and why Australia’s hydrogen project pipeline is the biggest in the world.

The gas is carbon neutral, emitting no greenhouse gases when produced or burned. It is created using a process called electrolysis, which uses electricity to split water into hydrogen and oxygen gas. When burned in a fuel cell as part of a hydrogen generator, H2 gas expels only water vapour as a byproduct.

NEW TECH, NEW CHALLENGES Hydrogen generators are not without their own drawbacks and challenges.

Ms Fowler explained that the hydrogen gas for the generator came in sets of singular bottles.

“They have limited capacity, so they require changeover fairly regularly.

There would be opportunities for larger containers of hydrogen gas, which would then eliminate the need for the ongoing weekly deliveries if you're doing it for a longer period of time. That could drive down costs by reducing the transport costs of getting hydrogen to the site.”

As Australia’s hydrogen industry grows, availability, storage and transport of hydrogen will improve, making devices like hydrogen generators more practical, efficient and, importantly, less expensive.

Currently, one of the primary drawbacks of the hydrogen generator is its significantly higher running cost – compared to a diesel field generator, hydrogen costs as much as 15-times more to run.

Construction companies looking to improve the environmental impact of their operations will need to weigh the benefits of utilising hydrogen generators. A difficult decision,

particularly in a time when construction costs are at a historic high.

Ms Fowler said that Sydney Water will look to deploy hydrogen generators in its future construction projects, provided that there is a viable opportunity.

“We have to look at the cost of it, whether that stacks up, and also the space for it. Hydrogen needs an exclusion zone around it to operate, so if you've got a confined or a smaller space then it's a bit trickier.

“But on a large greenfield site like the Upper South Creek site, it's a perfect opportunity to use it. At the moment, the costs are still much higher to rent the hydrogen generator compared to a diesel generator.

But when it becomes more widely available, then we'll see a reduction in those costs.”

John Holland General Manager Infrastructure, Steve Tolley, said that hydrogen generators are a step in the right direction when it comes to reducing carbon emissions.

“This revolutionary trial puts us at the cutting-edge of innovation and sustainability as we build one of the Southern Hemisphere’s most advanced water recycling facilities,” Mr Tolley said.

“Hydrogen technology is a gamechanger – with its incredible potential to reduce emissions and noise pollution whilst reducing our industry’s carbon footprint.”

Although hydrogen generators are still expensive, they show great promise for enhancing the sustainability of field operations, not just in construction but across a variety of industries, and as the hydrogen industry continues to expand, this carbon neutral technology could play a major role in guiding Australia to a net zero future.

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STRAIGHT FROM the customers’ mouths

By Rebecca Todesco, Utility Magazine

With different sizes, budgets and an array of essential services on offer, it’s normal for utilities and industry organisations to have differing company priorities. In spite of this, a common theme that is shared across the industry is a focus on customer experience and satisfaction.

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ecuring the satisfaction and loyalty of the people it services is a badge of honour for companies in the utility industry, and organisations that work hard to prioritise customer satisfaction and engagement often reap the rewards – literally and figuratively. As such, utilities are always looking to evolve and adopt policies and strategies that bring customer relations to the forefront of their priorities.

Yarra Valley Water’s hard work and focus on customer engagement has positioned it in the spotlight in the second half of 2023, with the utility receiving recognition of its excellence in customer service and ‘people first’ approach.

Yarra Valley Water’s General Manager of Retails Services, Steve Lennox, said, “We've had an incredible few months and are extremely proud to have received several awards including winning the national Contact Centre of the Year at the Auscontact Awards.”

Providing water and sewerage services to more than two million people and 61,000 businesses makes

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Yarra Valley Water one of the largest water utilities in the country, and the past year has seen it support more than 340,000 customer calls.

According to the company’s recent customer satisfaction results from August 2023 to October 2023, satisfaction remains consistently high, with a rating of 86 per cent.

AWARDS CELEBRATING EXCELLENCE Prior to Yarra Valley Water’s Customer Care team taking home Contact Centre of the Year at the 2023 Auscontact National Excellence awards, the utility

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also won Contact Centre of Year at the 2023 Auscontact Excellence State Awards.

The national awards acknowledge outstanding contributions in Customer Service, Contact Centres, Customer Experience, and Employee Experience.

Mr Lennox himself was also Highly Commended as Executive of the Year at the Customer Service Institute of Australia’s Australian Service Excellence Awards.

Mr Lennox said the company’s approach to customer service is as simple as considering the diverse needs of the community of more than

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two million people that it services, and striving to understand its customers as best it can.

“We engaged a citizens’ jury to help us with our price submission – which involved customers telling us what they want us to prioritise and work on over the next five years. This gives us complete confidence that our pricing submission reflects the diversity of the communities we serve.

“We also visit local shopping centres to raise awareness about available support and normalise conversations about services like our WaterCare financial support program. The program is available in five languages other than English, and includes additional information to support those who are deaf or hard of hearing.”

This is not the first year that the award spotlight has shone on Yarra Valley Water, with its excellent

customer service being recognised in 2022 in the International Service Excellence Awards and the Australian Service Excellence Awards.

GATHERING FEEDBACK THAT COUNTS Gathering feedback from its customers is significantly important to Yarra Valley Water and plays a big part in shaping the way the company approaches customer engagement.

Mr Lennox said that the company utilises various channels – like surveys – to gather feedback, ensuring that not only customer input but staff input as well are considered when it comes to making ongoing improvements.

“During post call surveys our customers have the option to leave a voicemail. We pass any messages on to the consultant so that they can hear the experience directly from the

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customer. We feel that’s had a huge impact rather than just typing out the message.”

“We encourage a culture of feedback within our team, and we welcome all feedback whether it’s positive or constructive. This is because we consider feedback as an opportunity for growth.”

ENGAGING WITH CUSTOMERS Communicating with its customers has helped Yarra Valley Water get a better understanding of people’s biggest struggles when it comes to dealing with water services and enables it to better devise ways to assist them with this.

“Many customers are facing increasing cost of living pressures, and are unaware of the available support options,” Mr Lennox said.

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“About one third of customers eligible for concessions don't claim them – missing out on up to 50 per cent off their annual bill. Since 2021, we've helped customers claim over $52 million in concessions.

“We’re committed to making sure our essential services are affordable and accessible to everyone. Through our WaterCare program, customers can claim a concession, apply for a Utility Relief Grant, or switch to flexible payment options.”

SPOTLIGHTING INTERNAL EXCELLENCE Mr Lennox attributes a great deal of the company’s customer satisfaction success to its employees and said it’s important to recognise the hard work of individual team members as well as the company as a whole.

Mr Lennox said the positive culture in the contact centre contributed to great customer satisfaction.

“Our people are critical to our success.

It’s our people that give Yarra Valley Water our edge.

“We have a working environment where we value every individual's unique contribution. Part of this includes having a high level of internal promotions and secondment opportunities. It’s important to enable all of our employees to achieve their full potential. When we invest in our people, we’re investing in our customers’ experience as well,” Mr Lennox said.

It’s a sentiment shared externally, with numerous Yarra Valley Water team members being individually recognised in the industry awards circuit.

“We’re thrilled to see several of our team members acknowledged at the Australian Service Excellence Awards (ASEA). We took a different approach this year and asked our entire Customer Care team to nominate the individual awards so that everyone feels like they have a part to play in recognising their peers.”

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Matt Joseph was highly commended in the Customer Service Professional of the Year category, and Andrew Cawfield was named a finalist in the Customer Service Advocate of the Year category at the ASEA awards.

Yarra Valley Water’s Contact Centre Team Leader, Corali Duncan, took out Customer Service Leader of the Year at the CSIA Australian Service Excellence Awards. Additionally, at the Auscontact Excellence State Awards, Chris Dicker was named winner in the Reporting and Analytics category, as well as Darcy Lee in the Workforce Management Professional category.

“We have a brilliant team who are really focused on helping people,” Mr Lennox said.

“These awards are a reflection of the work they do every single day to give our customers a good customer experience.”

Further showcasing its commitment to prioritising its team – especially in terms of post-pandemic recovery – Yarra Valley Water also received top honours with the Best Remote Work Strategy at the Australian HR Awards 2023 for its best practice approach to hybrid working.

Mr Lennox said that the team culture that Yarra Valley Water tries to embody contributes significantly to the company’s approach to customer service.

“We’ve built a culture of recognition and a strong support network within our customer care team. We want our staff to know how much we value the effort they put in and their achievements. But most importantly, we want people to enjoy coming into work and feel connected.”

Yarra Valley Water’s focus on customer engagement has certainly earned it recognition and awards, as well as the less tangible reward of customer happiness and satisfaction. Continuing this same level of dedication going into the future is a crucial way for Yarra Valley Water to ensure it is delivering the same high-quality service to both its customers and its employees.

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HOW ACCURATE IS A TYPICAL HDD PIPE INSTALLATION?

H

orizontal directional drilling (HDD) is a fantastic method for pipeline installation: it’s trenchless and non-invasive, with minimal impacts on the surrounding environment and community. One common question is how accurate can a typical HDD pipeline installation be? In this article, we take a look at the levels of accuracy in HDD and what factors can impact upon HDD accuracy.

WHAT DETERMINES THE ACCURACY OF HDD? The accuracy of HDD is determined by several factors.

Selecting the right tools for the job is the most critical factor in ensuring accuracy from the beginning. Knowing the composition of the ground, as well as the location of any existing buried assets, enables you to choose the right steering method and the right drill for the conditions.

Working with reputable professionals prior to selecting your tools is the best way to ensure accurate drilling.

A RECENT JOB COMPLETED BY AHD TRENCHLESS. THE TARGET MARKER POST WAS KNOCKED TO THE SIDE BY THE DRILL HEAD, DEMONSTRATING PIN-POINT ACCURACY. THE JOB WAS 260M LONG AND 18M DEEP, THROUGH VERY HARD ROCK.

MAGNETIC VS GYRO STEERING Aside from the basic walk-over system where a technician literally walks above the tool tracking its position, there are two primary methods of remote steering (often referred to as wireline steering): magnetic and gyro. Magnetic steering is a common choice that uses an inline tool to communicate

with a remote surface tracking software system to verify the precise location of the tool while underground, improving both accuracy and worker safety.

Magnetic steering uses either direct current (DC) or alternating current (AC) tracking. The DC method is the more accurate, as it uses a wire looped in a rectangular shape which starts and ends at the power source to create a magnetic field on each side of the loop. The AC method is similar but uses only one side of the wire instead of both.

Gyro steering, on the other hand, transmits its data through an optical fibre cable direct to the operator. The Gyro relays navigation information from the drill head to the operator in real-time as it continually tracks movements in pitch, yaw, and roll and measures this against actual distance travelled. It also requires less surface equipment to operate than magnetic systems.

While both steering methods work in most cases, it is important to do your research to determine the best method for your project. Magnetic steering is not suitable for projects where induced magnetic fields may be present at any stage of the drilling process, such as railways, as it may impact the accuracy of steering. On the other hand, gyro steering is unaffected by magnetic interference. However, the lack of external sensors with gyro steering can make it difficult to physically confirm the actual location of the drill, so an additional GPS check is used during course corrections.

PROVEN LEVELS OF ACCURACY One of the reasons HDD is such a great method of installation is because of how accurate it is. Once a course is plotted by a guidance engineer, the pilot hole is drilled tracking the drill in real time. HDD accuracy has proven accuracy of between 0.01 to 0.04 degrees of the target. This level of precision and accuracy makes HDD a great option for all types of trenchless pipeline installation.

In addition, in our experience, we are finding that on many projects, the use of HDD is also improving the time frame in which project owners are able to obtain permits to commence work. When drilling under heritage zones, sensitive habitats and in close proximity to buried critical assets like energy pipelines, HDD eliminates risk and speeds up the approvals process.

About the expert, Anthony Doherty Widely regarded as an industry expert, Anthony began drilling in 1994, and has overseen HDD installations since the technology first arrived in Australia. Of particular note, Anthony was the first person to undertake the HDD installation of polyethylene pipeline for the Australian water industry in 1995. With his extensive history and experience in the Australian HDD industry, Anthony has used his knowledge to develop several innovative patents for equipment that are still in use today. Anthony founded AHD Trenchless in 2009, and since that time he has built the company into an undisputed leader of HDD technology in Australia.

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UTILITY • FEBRUARY 2024

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For accurate, sustainable and efficient pipe and well installation Horizontal directional drilling (HDD) is the least disruptive method of pipeline installation for the utility sector.

It’s a better whole-of-life cost installation method with a minimal footprint to protect the surrounding environment.

When your Asset needs to go under a river, highway or rail-line, AHD have got you covered.

AHD Trenchless is Australia’s most experienced HDD contractor – visit www.ahdtrenchless.com.au to learn how we can help you, or call 0418 399 062.

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