SolarQuarter December Issue 2018 by SolarQuarter

SPECIAL FOCUS - ROOFTOP SOLAR INDUSTRY

www.solarquarter.com

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Volume 08. l Issue 12

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December 2018

1.5 GW+

OF SOLAR CONNECTED TO GRID

POWER SYSTEMS

ROOFTOP SOLAR

POWER DISTRIBUTION PRODUCTS

Making your Future Powerful

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Solar Quarter â&#x20AC;˘ December 2018 2

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Solar Quarter • December 2018 3

In Conversation

Table Of Content Solar Installations Will Light Up India’s Future Energy Prospects 18

Mr. Bhavesh Modi, Director, Sanelite “We Are In Process Of Enhancing Our Production Capacity And Very Soon It Will Be Doubled.”

12 Frank Qiao, Co-Founder and Sales Director, Growatt

Integrated Solar Modules: The Next Step In Solar Design & Technology

“Growatt Has Been A Leading Inverter Brand In The Rooftop Sector.”

Mr. Vijay Khandwekar, Head of Module Mounting Structure Business, Solar, Tata International Limited

How Energy Storage Can Facilitate Solar Integration 24

“We Have Steadily Built Our Capabilities To Handle Projects Of Larger Capacities Within Short Timelines With Primary Focus On Quality And Customer.” Mr. James Hou, Sales Head for South & East Asia, Goodwe

“Goodwe’s Philosophy Is To Always Create WinWin Partnerships By Identifying And Integrating The Most Advanced Components And Techniques.”

Big Technology Trends For 2019...........20-21 Product Feature: Sunshot- PVFix - ‘Standing Seam’ PV Module Mounting Structure For Metal

Saatvik Green Energy: All Module Ranges Have Been Certified To Highest Global Quality Standards ............................................................................29

SOFARSOLAR- Why choose SOFARSOLAR Inverters?..............................27

GSolar Power- Gsolar Power Is Committed To Developing & Promoting Technology Of PV Industry..........................................................................32

Roof....................................................................................................................26

Sova Solar- We Are Focusing On The Silicon Crystalline Based Product Using High Quality Of Raw Materials ...................................................................28

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Solar Quarter • December 2018 4

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Solar Quarter • December 2018 5

India News

ndia to add 10GW of renewable power in FY20: ICRA India will add 10GW of renewable energy generation capacity in FY20, a note from

ratings and research agency ICRA said . The comparable figure for FY19 is 9GW.

oa government proposes to tweak solar policy to incentivise production

To incentivise production of solar power in the state, the government has proposed a 50%

In its note, ICRA maintained a year-end stable outlook for the domestic renewable

subsidy for small prosumers (consumers and producers of solar power) as an amendment

energy sector due to large-sized capacity addition particularly in the wind and solar

to the Goa State Solar Energy Policy, 2017.

power segments, driven by policy support from central and state governments as well as the significantly improved tariff competitiveness of wind and solar power vis-a-vis conventional power sources. Sabyasachi Majumdar, group head - corporate ratings, ICRA, said: “The project awards by the central nodal agencies and state distribution utilities in CY2017 and CY2018 (YTD) provide a reasonably healthy visibility for RE capacity addition in FY2019 and FY2020 with expected addition of about 9GW in FY2019 and about 10GW in FY2020. The government

Instead of granting an interest-free loan that would be recovered in instalments from small prosumers, the government proposes to provide a 50% subsidy on capital costs to prosumers in the residential, institutional and social sector categories that have solar plants with a capacity of up to 100kW. If the amendment is allowed, the Centre will bear 30% of the subsidy’s cost and the state, 20%. Also, such a subsidy will be released to the prosumer only six months after the solar power project is connected to the grid.

has set an ambitious target of reaching 100GW of solar power generation capacity and

The proposed amendments to the solar policy have been uploaded to the website of the

227GW of renewable energy capacity by 2022, while total renewable capacity in India is

Goa Energy Development Agency, www.geda.goa.gov.in.

just over 70GW today.

A single-window clearance portal for grid-connected rooftop solar installations has already been readied for consumers in Goa, but is yet to be launched. Developed by the EU-India

entre to revive 23GW solar and transmission projects in Leh region

The Centre is reviving mega solar power projects in Leh and Ladakh, with a plan to set up

Technical Cooperation Energy Project, in coordination with the Asian Development Bank’s technical assistance programme, it will assist consumers in adopting green energy without having to worry about red tapism.

23GW of grid-connected projects. Private developers would be invited to submit tenders for these. Their transmission network would be extended till Punjab, a distance of about 850 km. The United Progressive Alliance government had tried to set up a 7.5GW solar project, but the plan never saw the light of day. The current government listed 5GW project in Leh in its list of ultra-mega solar project across county. The tender process has not begun for it yet. In the phase 1 of the current plan, the Centre is looking to put up 2.5GW projects in Kargil and 5GW projects in Leh for tenders. Officials in the Ministry of New and Renewable

ew capacity edition for Nov-Feb: Govt asks Solar Energy Corp to bring tenders of 4000 MW

The proposal that SECI may bring tenders of 1000 MW each in the months from November to February has come with an assumption that code of conduct for the next general election will be enforced in March 2019. With the government facing criticism over unfulfilled promises and unmet targets, the

Energy said the tender would aim at setting up a mega capacity project of 2.5GW at one

Solar Energy Corporation of India (SECI) has been asked to bring tenders of 1000 MW each

location. India’s target for solar power is 100GW; current installed capacity is 22GW.

in the months from November to February for new capacity edition. The proposal to add

The project would be awarded by the Solar Energy Corporation of India, the nodal agency

around 4000 MW — to the already installed 25000 MW solar capacity — is not likely to

of the MNRE. The tenders would be issued by December 15.

expedite the process of meeting the central government’s target of one lakh MW of solar capacity by 2022.

ear End Review 2018 – Ministry of New and Renewable Energy

Keeping in view our commitment to a healthy planet and our Nationally Determined Contributions as per the Paris Accord on Climate Change, India made a pledge that by 2030, 40% of installed power generation capacity shall be based on clean sources, it was

The proposal that SECI may bring tenders of 1000 MW each in the months from November to February has come with an assumption that code of conduct for the next general election will be enforced in March 2019. The solar capacity that is likely to be commissioned during 2019-20 is 4740 MW whereas solar capacity that is expected to be commissioned during this financial year is 4165 MW.

determined that 175 GW of renewable energy capacity will be installed by 2022.

In 2015, the then Union power minister, Piyush Goyal, had announced that the centre has

This includes 100 GW from solar, 60 GW from wind, 10 GW from bio-power and 5 GW from

set a target of having 175 GW renewable power installed capacity by the end of 2022. This

small hydro power.

includes 60 GW from wind power, 100 GW from solar power, 10 GW from biomass power

The substantial higher capacity target will ensure greater energy security, improved

and 5 GW from small hydro power.

energy access and enhanced employment opportunities. With the accomplishment of this ambitious target, India will become one of the largest Green Energy producers in the world, even surpassing several developed countries.

afeguard duty: Import of solar cell declines, domestic firms’ market shares up

India has an ambitious target to increase its solar capacity to 100 gigawatt by 2022 from 24 giga watt at present. The imposition of safeguard duty on the import of solar cells — the basic ingredient needed to manufacture solar panels — is starting to show its effect. In the first six months of FY19, the country imported solar cells worth $1,038 million, 47% lower than what was imported in the corresponding period a year ago. This is a reversal of the trend that prevailed in the last three years, where value of solar imports increased at a compound annual growth rate of 91.4%. About 88% of domestic module requirements were met through imports in FY18. The government, in July, imposed a 25% safeguard duty on import of solar cells for a year ending July 29, 2019 from China, Malaysia and other developed countries. The duty

elhi’s residential solar program offers guaranteed payment security to installers

The Delhi government recently approved the Mukhyamantri Solar Power Program to give the necessary and required impetus to solar power and its adoption in Delhi. This program will apply to domestic (residential) sector consumers in Delhi. The government recognizes the fact that the solar installations on government buildings and educational institutions are about 105 MW compared to the 5 MW installations so far in the residential segment. To bridge this gap and realize the concept of “Solarize Delhi” under the Delhi Solar Policy 2016, the government realizes this huge untapped potential has to be utilized. According to the government, a good part of solar power potential in the residential segment is on the rooftops of approximately 1,990 registered co-operative group housing societies in Delhi that have shown interest in installation under the RESCO model. But due to lack of payment security mechanism, rooftop installers were reluctant to offer their services resulting in power rates in societies remaining higher in comparison to rates for

would be 20% for the next six months, till January 29, 2020, and 15% in the subsequent

government buildings.

six months.

The Ministry of New and Renewable Energy (MNRE) has approved 40 MW of grid-

Meanwhile, the market shares of domestic solar panel makers are on the rise. According to

connected rooftop solar projects for the domestic/institutional/social segment for Delhi

data from Bridge to India, no Indian module supplier featured among the top ten module

under its subsidy schemes, allowing award of work order within six months and project

suppliers as on September, 2017. Cut to September, 2018, Adani Solar and Tata Power

completion time of 15 months from the date of approval.

Solar find a place in that list in the renewable research agency’s latest report. The market share of Vikram Solar and Waaree Energies now stand at 3.3% and 1.1% respectively.

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You would need more NEWs to cover your page. You can also put some news on any new Big Tenders. , Projects, etc.

Solar Solar Quarter Quarter •• December November2018 2018 6

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Solar Quarter â&#x20AC;˘ December 2018 7

Asia News

hilippines government working on rooftop solar policy proposal

MI Energy awarded a contract for the Mohammed bin Rashid al Maktoum solar park in Dubai

The Senate of The Philippines has announced that a proposal to reduce the cost of electricity

After its commercial success in China for the design and supply of a thermal solar receiver

for households and businesses through the adoption of rooftop solar, is currently under

at Haixi, CMI has just been awarded a new contract for engineering and supplying a

scrutiny by the senate committee on energy.

receiver for the Mohammed bin Rashid al Maktoum solar park

Senator Grace Poe, who has initiated the filing of Senate Bill No. 1719 for the promotion and adoption of rooftop solar technology among residential, commercial, industrial and government end-users, said that “Rooftop solar is an emerging technology which the government should look into especially as it’s becoming cheaper by the day,” She continued stating that “Unlike other power plants, whether fossil-based, hydro, wind or solar farms, rooftop solar does not require land conversions because it uses what is usually an underutilized and already existing resource — the roof,”. “Complete solar photovoltaic systems or solar technology can be bought off-the-shelf and could be easily installed in a few hours. Larger systems may take a few days. No other technology, renewable or otherwise, could match the convenient installation attributed to rooftop solar,” Poe added. Although a net metering policy was introduced in the Philippines in 2008, there has been a slow adoption of rooftop solar by consumers due to reasons such as inability to access financing, regulatory red tape and resistance from utilities to comply with the policy.

This huge concentrated solar power project named after the Emir of Dubai, is the centerpiece of Dubai’s ambitious goal of generating 75% of the Emirate’s electricity demand from renewable energy by 2050. When completed in 2030, the Solar Park will have an installed capacity of 5,000 MW from an investment of approximately 12 billion euros. Launched in 2013, the Solar Park’s first three phases are dedicated to producing photovoltaic power. Phase 4, known as the DEWA project for Dubai Electricity and Water Authority, is expected to cost over 3.3 billion euros. ACWA Power, one of the world’s largest developers of CSP projects, won the development contract for Phase 4. ACWA Power has selected Shanghai Electric as EPC. CMI Energy was awarded the contract for the solar receiver in October 2018.

mproving energy security in Gaza through solar energy The Palestinian Energy Authority and the World Bank launched today the Gaza Solar

Revolving Fund, a pilot aiming to install rooftop solar energy in Gaza for residential

GS Energy’s POWERHOUSE™ partner Risen ranked among top three solar PV module manufacturers

Risen Energy reported on November 19, 2018 it has been listed by Exawatt Power Rankings as a top three solar PV module manufacturer for the second quarter of 2018. This achievement reflects Risen Energy’s outstanding success in developing industryleading PV module technology and delivering professional project services. “We are now fulfilling purchase orders from RGS to enable them to meet their customer demand,” said Bypina Veerraju Chaudary, Risen Energy’s chief sales and marketing officer. “We have begun manufacturing solar components and wire harness connectors for POWERHOUSE™ and expect to increase our production schedule in the coming months.

consumers, businesses and hospitals. The pilot model allows consumers to apply to the revolving fund for solar PV systems, with the cost repaid in monthly installments into the revolving fund. This Fund is financed through the Electricity Sector Performance Improvement Project, developed in cooperation with the the World Bank. The agreement for the new business model was signed between the Palestinian Energy and Natural Resources Authority and the Gaza Electricity Distribution Company Ltd. The launching event was attended by donor representatives, local and international NGOs, ministries, representatives from the banking sector and DEDCO.

Our deep experience working with new technology makes us ideally suited to help RGS

The available power supply in Gaza meets only a small portion (35%) of the overall

continually improve and reduce the costs to manufacture POWERHOUSE™.”

demand resulting in rolling blackouts with less than 6 hours of electricity supply followed

Dennis Lacey, RGS Energy’s CEO, commented: “We believe our POWERHOUSE™ customers

by 12 hours of power cuts. During winter and summer peak load conditions, the situation

will have the peace of mind knowing that the solar component is made by utilizing Risen’s

deteriorates, and power is only available 3-4 hours per day. This recurrent situation is

expertise, delivered by a strong Tier 1 solar manufacturer. Using technology developed

disrupting lives and livelihoods in Gaza.

by the Dow Chemical Company and parts supplied by a stellar partner such as Risen, we believe that our solar shingle enables us to offer unsurpassed value proposition in today’s market place.”

lsoEnergy partners with survey digital for sales, installations, and support in EMEA region

For AlsoEnergy, the top selling independent monitoring provider for commercial PV in

FC to help Uzbekistan bring foreign investment in energy sector

A round table was held in Tashkent to clarify the provisions of the tender documentation for a test public-private partnership project to attract investments to finance, build and operate a solar photovoltaic plant with a capacity of up to 100 megawatts in Uzbekistan’s Navoi, press service of the International Finance Corporation said. The solar plant is the first phase of a project with a total capacity of up to 1,000 megawatts. The event was attended by more than 15 international companies that familiarized

North America, this partnership is an opportunity to extend international coverage for sales and support. AlsoEnergy, a leading provider of monitoring and SCADA systems for solar PV, is announcing a partnership with Survey Digital, a company specializing in sales, installation & commissioning, and maintenance for solar inverters. Survey Digital has been designated as a certified sales agent and service provider for AlsoEnergy in Europe, the Middle East, and Africa (EMEA).

themselves with the conditions of the tender, including the technical, economic and legal

For AlsoEnergy, the top selling independent monitoring provider for commercial PV in

aspects of the project.

North America, this partnership is an opportunity to extend international coverage for

An investor will be selected through a transparent and competitive international tender,

sales and support. AlsoEnergy has expanded international offerings over the past several

the results of which will be known in 2H2019.

years and the Survey Digital partnership will enable further market penetration in the

In accordance with an agreement between the State Committee of Uzbekistan for

EMEA region, providing localized sales and services for the AlsoEnergy product line.

Investments and Uzbekenergo, dated May 17, 2018, IFC, a member of the World Bank

Survey Digital will also assume frontline support service for the existing AlsoEnergy install

Group, is helping Uzbekenergo to attract the private sector’s experience and investment

base in the EMEA region.

into the renewable energy sector of Uzbekistan.

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Solar SolarQuarter Quarter••December December2018 2018 8

Goldi Modules The Preferred Choice For Project Developers

Quality At An Unbeatable Price 100% Value For Money

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GOLDI SOLAR PVT LTD (Formerly Goldi Green Technologies Pvt. Ltd.)

www.goldi.one Solar Quarter • December 2018 9

Golbal News

25.38/MWh bid sets new record low for 24/7 block mixing wind and solar at Chile Tender

Verano Capital, an American project developer headquartered in Santiago, announced

The manufacturer officially recognizes the institute’s performance and condition testing of Cadmium Telluride thin-film series 4 modules. Customers can therefore rely on the independent testing conducted by PI Berlin, an institute with recognized expertise in thin-

that the 47 MW solar project they initially developed was selected in Chile’s latest energy

film technology and manufacturing.

tender with a winning bid at $25.38/MWh, the lowest 24/7 block price combining solar

“We are pleased to recognize PI Berlin as an approved testing institute,” said Lou Trippel,

and wind ever recorded in the history of energy tenders.

First Solar’s Vice President of Product Management. “It is crucial for us that independent

The winning bid was offered by a solar project which will be coupled with wind projects

testing institutes perform at a consistent level and meet very specific standards in order to

to offer a 24/7 supply over a 20-year period. Dylan Rudney, CEO of Verano Capital, who

correctly test and measure our modules. PI Berlin has clearly demonstrated their expertise

originally designed and developed the solar project before partnering with the fund who

and proficiency.”

eventually took the project to bid, expressed his satisfaction with the results of the tender.

Investors and system owners will benefit from the approval of PI Berlin by First Solar

“It was an extremely competitive tender. Contracts were awarded at an average price of

— primarily regarding project security. If module defects are found after delivery,

$32.50/MWh, which represents a 75% drop from the peak of $130/MWh reached in the

installation or operation in the field, First Solar will recognize testing done by PI Berlin

2013 tenders. These are the lowest renewable energy prices we have ever seen on a 24/7

and acknowledge valid claims. PI Berlin will continue to work as an independent testing

energy auction anywhere in the world. This will be most directly beneficial to Chilean

institute commissioned by customers, not by First Solar.

energy consumers, but it also underpins the changing trend in the energy industry, where conventional energy sources are no longer able to compete with increasingly low renewable energy costs,” said Rudney. Verano Capital, whose core business is to offer turnkey development, EPC, O&M, and asset management services to investment funds, has ambitious growth plans going forward.

nstallation of solar solutions on Jumby Bay island completed

The twin-island state Antigua and Barbuda has taken a leading role in terms of clean

Verano is the leader in the PMGD* development market in Chile, with five operating

energy supply in the Caribbean.

utility-scale projects and five more to be commissioned in 2017.

This leadership has now once again been strengthened through the completion of eleven sun2live and sun2roof solar installations on the small private island Jumby Bay in the north

wRI solar activity research provides insight into Sun’s past, future

Andrés Muñoz-Jaramillo of Southwest Research Institute and José Manuel Vaquero of the

of Antigua by the renewable energy provider PV Energy Limited. The implementation of ground- and roof-mounted solar systems with a total capacity of 404 kWp represents a crucial step towards a sustainable and economic energy supply for the island.

University of Extremadura have developed a new technique for looking at historic solar

The installation of eleven sun2live and sun2roof solar systems, with an expected annual

data to distinguish trustworthy observations from those that should be used with care.

energy production of 626 MWh, on Jumby Bay island has currently been completed. As

This work is critical to understanding the Sun’s past and future as well as whether solar

off now, 216.9 kWp of ground-mounted sun2live solutions and 186.82 kWp of sun2roof

activity plays a role in climate change.

rooftop installations contribute towards a cleaner power generation on the island, saving

“Scientists have been monitoring solar activity since Galileo made the first drawings

438 tons of CO2 emissions per year. Until today, all the installed systems have already

in 1612 by counting sunspots and groups of sunspots,” said SwRI’s Muñoz-Jaramillo, a

exceeded the expected performance criteria and production benchmarks.

senior research scientist who is first author of a paper in Nature Astronomy outlining the

The roof-mounted systems have been installed on different buildings, such as offices,

research. “However, putting all observations in perspective is quite challenging due to

workshops and a desalination plant in the center of the island. PV Energy thereby supports

wide-ranging observation techniques and telescope magnifications used. We see much

the small island to become independent from expensive and polluting fossil fuels and to

more now and our understanding of what we see changes the way we count spots.”

benefit from the excellent climatic conditions for generating solar energy.

The team created a technique that takes all historic data gathered and digitized thus far and combines them visually, to provide a complete picture of the data we have and where are we missing information. Roughly every 11 years, the magnetic structure and activity of the Sun cycle between periods known as solar minimum and solar maximum. During

rgentina’s solar energy business is set to quadruple Omron is ready to realise new photovoltaic business opportunities in Argentina.

solar maximum, the Sun emits high levels of solar radiation, ejects large amounts solar

Strong investments in renewable energies are an important result of the new political

material and displays large numbers of intense sunspots, flares and other phenomena.

situation in Argentina. The new President, Mauricio Macri, who has been in charge since

During solar minimum, this activity is muted. Changes on the Sun cause effects in space,

November 2015, established that green energy targets for the end of 2017 should be

in the atmosphere and on Earth’s surface.

at eight percent of total energy generation (Argentina currently gets less than 2% of its

he first three-phase sma inverter with free monitoring smart connected

Sunny Tripower 3.0-6.0 from SMA Solar Technology AG is now available worldwide. The first three-phase PV inverter that is also designed for low power classes is being launched with the SMA Smart Connected service and integrated communication for module optimization. It ensures higher energy yields and investment security for operators

power from renewable energy) In July 2016 the Argentinian government started the second stage of PERMER (Project Renewable Energy in Rural Markets) for the supply and installation of approximately 6500 solar photovoltaic equipment and internal installations in rural households of Catamarca, Chaco, Entre Rios, La Pampa, Salta and Neuquén. The first stage of the PERMER project ended in 2012 and enabled the electrification of approximately 1,800 schools, 350 public services and 27,000 residences. This second stage aims to continue the electrification and

of residential PV systems and small, commercial PV systems. Installers benefit from time

achieve universal access to energy.

and cost savings during installation and maintenance.

Omron, worldwide market leader for industrial automation products, and, according to

“Thanks to the new Sunny Tripower, it’s never been easier for our customers to utilize

IHS Research Q42015 one of the top five PV inverter suppliers worldwide, is ready to

solar energy and further reduce their energy costs,” said Nick Morbach, Executive Vice

realise these new opportunities thanks to the cooperation with Ecoenergy, a company with

President Business Unit Residential and Commercial at SMA. “SMA has designed a system

Italian capital involvement, already working in the country.

that not only increases energy yields and self-consumption, but also offers maximum comfort for PV system operators.” Maximum energy yields even in shading Weighing just 17kg, the three-phase Sunny Tripower 3.0-6.0 is not only lighter than any previous Sunny Tripower devices, but also exceptionally powerful. The PV inverter can be commissioned quickly and intuitively via a smartphone or tablet using the web interface and features an integrated interface for easily connecting TS4-R module optimizers, allowing modules affected by shading to be optimized and system costs reduced as a result.

razil’s Ceara approves 264-MW solar project Coema, the state council on the environment of the Brazilian state of Ceara approved

last week a solar complex project with about 264 MW of installed capacity. Named Complexo Fotovoltaico Apodi, the project will require BRL 800 million (USD 245.18m/EUR 219.98m) in investments to be made in its seven solar farms. In total, the complex will consist of 825,300 solar modules of 320 Wp each. The solar plant, once completed, will cover four different cities. Its energy will be fed into

I Berlin Becomes An Approved Testing Institute For First Solar Modules

The Photovoltaik-Institut Berlin has been accepted as an independent testing institute by the thin-film module manufacturer First Solar.

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the grid via a 230-Kv overhead transmission line. Of the seven plants, four are already secured through former energy auctions, while the remaining three will take part in the next federal tenders, Coema said in a press release. (BRL 1 = USD 0.306/EUR 0.275)

Solar SolarQuarter Quarter••December December2018 2018 10

3.125MW

Central Inverter Solution Higher yields Lower system cost Suitable for harsh environments

Sineng Electric Co., Ltd. NO.6 Hehui Road, Huishan District, Wuxi, China

Sineng Electric (India) Pvt Ltd. Plot No. 56 & 57, Bommasandra - Jigani Link Rd Industrial Area, Bangalore, Karnataka, India

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Solar Quarter â&#x20AC;¢ December 2018 11

In Conversation

“We Are In Process Of Enhancing Our Production Capacity And Very Soon It Will Be Doubled.” Mr. Bhavesh Modi, Director, Sanelite

Tell us about the current installed capacity of the company and what are the investment plans for the coming year? We are seeing a sharp growth of sale this year with supply of more than 10 MW pv modules

Are you content with the progress of the Indian solar industry and the new policies being introduced by both state and central government? What more would you like to expect from the government policies?

across the country and closing more than 5 MW EPC / rooftop projects in this year. We are

What we like about the current government policies are that they are highly progressive in

in process of enhancing our production capacity and very soon it will be doubled. We also

nature and made keeping in mind the Indian business. The recent examples we have seen

have a bit of supply overseas to Singapore and in Middle East Asian countries. From initial

are the enforcement of safeguard duty and the requirement of BIS certification. After lots

focus on Gujarat, we are now rapidly covering whole of India with our increasing sales and

of ups and downs, we finally see what’s there now, which helps up making better decisions

service presence.

for our business. Another policy issue that’s catching everyone’s attention now is the GST issue. Let’s hope it gets resolved soon in a positive manner.

Tell us more about the latest innovations in your product and solution offerings for the Indian market.

On a different note, the policies adopted at national level are highly effective, but the

While the PV module manufacturing space is where we have seen a constant technological

access projects, reliefs for change in law, power curtailment/shutdowns of substations are

change ranging from number of bus-bars to merlin technology, we are striving hard to

few areas that the government policies should focus and provide relief to the developers.

keep ourselves upgraded. We have already tested and embedded the latest technological

Government announced subsidies also take long time to materialize which is one more

innovations in solar PV modules space. We recently launched the highly efficient mono-

issue to be looked upon.

implementation in true spirit is lacking in some states. Approval of captive and open

PERC modules, bi-facial modules and binary modules – modules with half-cut cells.

2018 has been volatile. Can you give us an insight of the highs & lows of the company? How imposition of safeguard duty on import has helped the domestic manufacturing sector?

Rooftop has been a growing segment. Do you see more business from the off-grid market in India over the next 5 years? Rooftop projects are beneficial to both – consumers as well as discoms, as the ever rising need of electricity can be catered from right where it’s needed. Off grid market has huge growth

Definitely. 2018 has seen two major issues going to and fro between various parties – the

potential especially in remote villages, hills and farms which are still not directly connected to

implementation of Safeguard Duty and requirement of BIS standards. Clarity of safeguard

the national grid. The maturity of storage technologies and availability of cost-effective storage

duty was less detrimental than uncertainty on the safeguard duty. Since now it’s already

solutions hopefully will make off-grid applications more desirable. Additionally, government

there, what we have seen till now in the market is that safeguard duty is not impacting

programs such as Saubhagya Yojna will help boost the momentum.

much of the bigger EPC players. On PV modules making front, the safeguard duty along our products competitive.

How do you plan to achieve national expansion of your company? Where do you think the major challenges lie in this expansion process?

On EPC or Rooftop front, being one of the leading channel partner for GEDA, we have

We do have a strong 20+ franchisee network all over Gujarat. We are in process of

seen the tides of the Gujarat market from close. While GEDA supported residential rooftop

replicating similar model across India. With an established sales presence in Gujarat,

program boomed in 2017-18, the subsidy was stopped abruptly sometime in Dec 17. This

Rajasthan and Maharashtra, we already have succeeded in adding some of the major

has impacted the momentum of solar rooftop a lot. However, GEDA has again reopened

centres including Delhi NCR, Bangluru and Jharkhand in our list. We are already geared

subsidy for solar roof top system in Sep 2018, and we are expecting surge in the rooftop

up to cater to rising demands with our constantly improving products, new catered and

market.

specific product launches in the fiscal, stricter manufacturing processes and even better

with decline in prices of Chinese products, has reduced the overall prices and have made

customer service experience for our customers.

“Growatt Has Been A Leading Inverter Brand In The Rooftop Sector.” Frank Qiao, Co-Founder and Sales Director, Growatt

Let’s begin with a glimpse of your Growatt’s presence and offerings in India?

What are your growth plans for the Indian market? What are the

Up to now Growatt has been deeply engaged in Indian market for more than 7 years. We

Growatt has been a leading inverter brand in the rooftop sector and we have a lot of

provide a full range of PV grid-tied string inverters from 1 kW to 80kW, as well as storage

advantages in terms of product lineup, quality, customer service etc. This fiscal year we

solutions including inverter and battery for residential, C&I and utility-scale applications.

are targeting at 120MW capacity for rooftop solar in India. Additionally, since our large

milestones you wish to achieve by the end of this fiscal?

capacity string inverter is now ready for sales, which is perfectly suitable for MW level small

What have been the latest trends in demand for your products & services in India? The latest trend in India is the local manufacturing and service network and these are what we’ve been working on very hard. For local manufacturing, we are looking to finalize in Q2 of 2019. Regarding service network, currently our service center and warehouse are based in Hyderabad. Furthermore, we have already established service offices in 8 major cities, which enables us to provide on site service across India. Our toll-free service hotline has also been set up to provide fast response for our customers.

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projects, we are also looking at opportunities in this sector of India market.

Tell us a bit about the recent technology advancements in your sector? Our most up-to-date inverter is the Growatt Max series with capacity up to 80kW. It comes with 6 MPPTs, which makes PV configuration very flexible. Furthermore, the inverter is designed with all necessary protections including type II SPD on both AC and DC side, Anti-PID function etc. Its comprehensive functions of string monitoring, waveform recording and IV diagnosis, on the other hand, will bring much more convenience for the maintenance of the PV system.

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In Conversation

“Goodwe’s Philosophy Is To Always Create Win-Win Partnerships By Identifying And Integrating The Most Advanced Components And Techniques.” Mr. James Hou, Sales Head for South & East Asia, Goodwe Let’s begin with a glimpse of your Goodwe’s presence and offerings in India?

in Suzhou New District and another in Guangde County, Anhui Province. Nearly $90 million

GoodWe is a leading, strategically-thinking enterprise which focuses on research and manufacturing of PV inverters and energy storage solutions. With 12 GW installed in more than 100 countries, GoodWe solar inverters have been largely used in residential, commercial rooftops, industrial and utility scale systems, ranging from 1.0 to 80kW. GoodWe inverters offer reliable operation and excellent performance and are well recognized by customers worldwide. MT Series string inverters (50-60kW) are most popular for Indian C&I solar market, which can be successfully deployed on large scale commercial rooftops and groundmounted solar PV systems and can help further reduce installation costs while its power boost function provides higher yield and a faster ROI. It is very proud that we have worked with some of the most reputed EPCs/Developers on many large-scale C&I projects, ranging from 5MW to 20MW, such as TATA Power, Bosch, and Sterling & Wilson, etc.

has been invested on it, $50 million out of which will be allocated to the upgrading of our

What have been some of the recent developments at your organisation? GoodWe’s philosophy is to always create win-win partnerships by identifying and integrating the most advanced components and techniques available while offering an unparalleled after-sales service. A professional team of 10 authorized engineers can perform on-site inspections, testing and debugging and providing repair or replacement if necessary, using the latest techniques to maximize inverter performance while minimizing production or process downtime. There will be more engineers joining us in 2019. GoodWe’s Mumbai service support office is located at 1202 G-Square Business Park, Sector 30A, Opp. Sanpada Railway Stn., Vashi, Navi Mumbai 400703. Our production capacity in 2018 reached approx. 4 GW. In 2019, we are expecting to triple it to 15 GW, as we will launch a brand-new production site, which expects a manufacturing capacity of approx. 10 GW manufacturing capacity, which will be the largest string inverter manufacture in the world. The proportion of each series of products in our total production capacity remains flexible and can easily adjust depending on the market demand on order of our clients. In near future, according to our plans, we will have two production facilities, one

Headquarters in the New District of Suzhou.

Tell us a bit about the recent technology advancements in your sector? Besides offering a comprehensive portfolio of string inverters and solutions for residential, commercial and utility scale PV systems, GoodWe is committed to research and manufacturing of energy storage solutions and smart energy management system. The brand new threephase high voltage energy storage inverter GoodWe ET Series enables enhanced energy independence and maximizes self-consumption through export limit feature and time of use shifts for reduced electric bills. Covering a power range of 5 kW, 8 kW and 10 kW, it allows up to 100% oversizing to maximize power output and features Uninterruptible Power Supply (UPS) function to inductive loads such as air conditioners or refrigerators with an automatic switchover time of less than 10 milliseconds. While GoodWe Smart Energy Management System (SEMS) is a comprehensive platform for visualizing and monitoring all kinds of power plants. The main focus of the system is to improve O&M efficiency by establishing an intelligent warning system which provides quick troubleshooting solution to underperforming power plants. SEMS also generates customized charts and tables to facilitate data analysis. This cost-free system will allow customers to overview their power plants via web or smartphone application.

What are your growth plans for the Indian market? We have already set up an office in Mumbai, with 10 staff on board. This year, we are looking to take around 4-5% market share in India. Our local team will increase to 30 employees next year, and we are targeting an increase of sales by 100% in 2019.

“We Have Steadily Built Our Capabilities To Handle Projects Of Larger Capacities Within Short Timelines With Primary Focus On Quality And Customer.” Mr. Vijay Khandwekar, Head of Module Mounting Structure Business, Solar, Tata International Limited Your 1st solar Module Mounting Project commenced in 2012. Industry has come a long way since then. How has your growth been in the last 6 years?

You are currently working on one of your single-largest solar plant project (175 MWp). How has the execution process been with all the hurdles that the solar industry saw in last few months?

Our journey over the past six years has witnessed us provide module mounting solutions

Every solar project developed and executed has a unique list of challenges pertaining to a wide spectrum of factors including local geography, technical criterion and commissioning. Having executed multiple projects in almost every state in India, through our meticulous research and planning we have been able to tide over these difficulties and deliver as per our commitments to our customers. With this experience and capabilities we are now confident of executing projects of even larger capacities exceeding 250 MW.

for approximately 2 GW of Solar Power Projects. The growth has been significant with 105 MW in FY 2012-13 to 700* (Projected) MW in FY 2018-19. We have steadily built our capabilities to handle projects of larger capacities within short timelines with primary focus on quality and customer satisfaction. Focus on product improvement and vendor development was the next priority. These strategies helped us greatly and this is evident from the scale of projects handled by us in a single location starting from 20 MW in our first year of business to 175 MW this year. Our persistent efforts to improve our strength in design and execution has successfully helped us achieve a market share of 15% in the addressable market. We aim to increase our market share substantially in the near future and also expand our services by focusing on to rooftop solar EPC for industrial and residential project.

How have your installed projects performed, financially and technically? Has the feedback from your clients been up to your own expectations? Product improvement based on design development has been one of our priorities. Assiduous research has been put into developing high performance module mounting structures with optimized weights without compromising on the technical requirements and specifications. This has resulted in providing module mounting structures with a good cost structure aided by Tata International’s inherent strengths. Since customer satisfaction and quality are also our priorities, we feel that we have been successful in achieving good reviews and feedback from our customers. This is evident from the fact that about 45% of our order book is from existing customers placing repeat orders on us.

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Are you exploring new opportunities in international markets as well? What has been the progress there so far? Export markets have always been on our targets. However we felt that it was important to consolidate our market share in the domestic market. Since we have gained considerable progress in this aspect, we now have a renewed focus on the international market as well. We are in various stages of discussions with multiple developers and EPC contractors and aspire to receive sizeable orders from them soon.

You have international players entering the Indian PV Solar Market. What is your strategy to ensure that your current market share remains with you? Yes, there are many players entering the Indian PV Solar Market. However our unique selling proposition is that of the design, manufacture, supply and installation of Module Mounting Structures. There are a few internationally based companies entering this space, but we shall rely on the inherent strengths and capabilities aided by our reputation to keep our market share intact and further improve on it. Also going by the tender and plans and projections that the Government has been announcing there are plenty of projects which can be addressed by multiple players.

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INDUSTRY INSIGHTS Industry Insights

Investment Needs, Drivers & Barriers Of Rooftop Solar In India We need to consider new models of financing as well as partnerships to be successful in scaling up the solar technology present in the Indian market.

In the next five years, the rooftop solar sector

In order to reach the national target of 40 GW, rooftop solar capacity needs to increase

needs to increase 32 times from its present

32-fold in the coming five years. Of the total installed rooftop solar capacity of 1.25 GW (until Dec. 2016), the industrial sector has deployed the largest share, followed by the

capacity to reach the government’s target of

commercial sector and then the residential sector (Figure1). Most of the remaining target is also expected to come from the industrial sector (44%). To meet this target, the sector

40GW by 2022

has to increase its capacity by close to 37 times. The commercial sector also has to expand its contribution by about 37 times to host its expected capacity of 12.06 GW. Though the expected share of residential and public (government) buildings in the national target are comparatively less, they also have to expand their contribution by close to 21 times to meet the national targets. The sectoral growth estimates are calculated based on the assumption that governmental

To meet the outstanding 38.75 GW rooftop

and residential buildings will contributeapproximately 10 GW to rooftop solar by 2022.

solar target by 2022, a total of INR 2.07 trillion

Investment needs to achieve the national rooftop solar target

(USD 31.8 billion) is required, in addition to

Given the considerable gap between currently installed and expected capacity by 2022,

current subsides and INR 2.52 trillion (USD 39

there is large need for investments in rooftop solar capacity. Estimates of investment

billion) excluding subsidies.

needed to scale up rooftop solar are subject to costs for solar panels, capital, labor and operations, and levels of national and state-specific subsidies and taxes. Table 1 shows the estimated investment needs of the rooftop sector for the outstanding 38.75 GW of solar power necessary to achieve the 2022 target. Based on our interviews with municipal government officials in New Delhi and Surat, and the benchmark prices of rooftop solar, the estimated price for residential buildings is INR 70,000 per kW and INR 65,000 per kW for governmental, commercial and industrial buildings. In the calculations,

Rooftop solar offers significant and increasing costs savings Cost savings are the key driver of rooftop solar in India: 

In many Indian states and market segments, the levelized cost of electricity (LCOE)5

we have also considered the current levels of subsidies available for rooftop solar systems

of rooftop solar is already lower than the existing average grid rates of tariffs paid.

across different types of states. Furthermore, we have also calculated a 35% tax on the

 Rooftop solar is approximately 17% and 27% cheaper than the average industrial and

accelerated depreciation at the rate of 40%.

commercial tariff respectively (Figure 3), without considering net-metering policies. 

Drivers for rooftop solar adoption in India There are many factors driving the adoption of rooftop solar in India. These include cost

Rooftop solar is also already achieving grid parity in the residential sector in states such as Uttar Pradesh, Maharashtra, and Rajasthan.



In the governmental sector, rooftop solar hasbecome competitive in Delhi, Uttar Pradesh, Karnataka, Haryana and Andhra Pradesh.

savings, energy access, “green” benefits, and government mandates. 

In other states, the gap between rooftop solar and conventional sources of electricity is fast decreasing.

Figure1 (center): Shares of rooftop solar capacity by sector in India in 2016 and Figure 2 (right): Expected shares of rooftop solar capacity by sector in India to achieve 2022 target (38.75 GW) Table 1: Capital investments needed for outstanding 38.75 GW of rooftop solar in India by 2022

Figure 3: Average electricity tariffs for different states and market segments and rooftop solar LCOE

Note: Only the generation costs (i.e. LCOE) has been considered as many states have exempted renewable energy form paying others charges such as wheeling charges and cross-subsidy charges. Also, we have not incorporated the impact of any subsidy such as accelerated depreciation in the LCOE calculations

Credit: Scaling up Rooftop Solar Power in India: The Potential of Solar Municipal Bonds, CEEW Report, June 2018

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Solar Quarter • December 2018 16 Solar Quarter • December 2018 16

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INDUSTRY Industry Insights INSIGHTS

Solar Installations Will Light Up India’s Future Energy Prospects

The Government of India has set an ambitious target of achieving 175 GW of clean energy

solar has huge growth potential and deserves to be supported by policies, especially when

generation by 2022. This includes 100 GW from solar power, 60 GW from wind power,

utility-level solar is facing challenges with respect to land and transmission connectivity.

10 GW from biomass power and 5 GW from small hydro power. The largest renewable

Solar energy will light the way for India’s power needs in the years to come, and everyone

capacity expansion programme in the world is being taken up by India. In order to achieve the renewable energy target of 175 GW by the year 2022, the major programme on the implementation of solar parks, solar roof top schemes, solar pumps etc. have been

in the industry is looking expectantly at the horizon for the rise of a bright new growth story.

launched during last few years.

Targets and Achievements for solar power generation A total of around 73.35 GW of renewable energy capacity has been installed in the country as on October 2018 from all renewable energy sources which includes around 34.98 GW from Wind, 24.33 GW from solar, 4.5 GW from Small Hydro Power and 9.54 GW from Bio-power. Further, projects worth 46.75 GW capacity have been bid out or are under installation. The Government has declared the trajectory of bidding 60 GW capacity of solar energy and 20 GW capacity of wind energy till March 2020. Projects worth each 30 GW solar power and 10 GW wind power capacity would be bid out each in the year till the end of 2020.

A total of around 73.35 GW of renewable energy capacity has been installed in the country as on October 2018 from all renewable energy sources which includes around 34.98 GW from Wind, 24.33 GW from solar, 4.5 GW from Small Hydro Power and 9.54 GW from Bio-power.

Challenges to adopt The current set of policies and the uncertainty around them could pose a problem to the sector. Players with larger capital, especially global players could give a tough competition to domestic medium-and-small players. Determining the financial viability of new projects at declining tariffs will be a challenge for players. With the introduction of GST and lack of its clarity, tax exemptions like excise duty waiver will no longer be available for solar projects. Moreover, the lifting of the stay on solar safeguard duty could impede India’s march towards its renewable energy targets. Considering that India’s has hugely been depended on imports for solar equipment in the last three fiscals, this could lead to unviability of solar projects. The other implementation challenges are a cumbersome process of land acquisition and limited evacuation of power.

Measures: Policy support and government intervention

Various policy measures have been initiated and special steps taken in addition to providing financial support to various schemes being implemented by MNRE for achieving the target of Solar capacity of 100 GW by 2022. These include, suitable amendments to Electricity Act and tariff policy for strong enforcement of RPO, setting up exclusive solar

Author: Mr. Rajya Wardhan Ghei serves as Chief Executive Officer, India, Hindustan Clean Energy Limited, the domestic solar power vertical of Hindustan Power

parks, development of power transmission network through Green Energy Corridor Project, guidelines for procurement of solar power through tariff based competitive bidding process, orders of waiving transmission and losses from solar power projects. Also, rooftop

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Cover Story

Big

Technology Mr. Jianfei Li , Vice President/CTO, SINENG ELECTRIC CO., LTD.

Trends For 2019

requirement. With the module price decreasing, the DC/AC ratio of plant is becoming higher considering lower LCOE. The bifacial PV module has advantage of high yield with

We witnessed the good government policy for new energy

both sides generating power and will be the trend for the future PV plant which will be

and the steady increased PV installation in India recent years.

helpful for ROI. We are developing large capacity 1500V central distributed inverter with

As a leading inverter company, we have high confident in India market. With the capacity utility PV plants are growing bigger and bigger, the high capacity central inverter is in great demand and the 1500V system

multiple MPPT for perfect matching bifacial PV module and solving the mismatch problem. Energy storage system will have more applications with the continual price decreasing of

is the main stream technology considering lower system cost. We are always keeping

battery and High DC/AC ratio. We have already prepared DC and AC storage solution

technical leadership in developing high capacity central inverter to satisfy with the market

specially designed for PV plant in India.

Solar Integrated Smart Cities Mr. Chetan Shah, Director, Goldi Solar Pvt. Ltd. Small Scale Solar Installations Solar has very fast become the cheapest source of electricity, gradually attaining grid parity and outcompeting conventional power generation plants. Solar can reach its full potential only in a dispersed / decentralized energy system onsite, which can be attained by installing small scale solar plants. A dispersed energy system allows for optimal use of renewable energy, reduces fossil fuel use and increases eco-efficiency. The power industry has focused on developing large, central power stations which transmit generation loads across long transmission and distribution lines to consumers, which amounts to considerable loss during transmission. In contrast a dispersed energy system seeks to put power sources closer to the end user, reducing transmission and distribution efficiencies and related economic and environmental costs. These small-scale installations will prove to be a fulcrum of a digitalized, decarbonized, distributed and democratized energy system which will empower the consumer with cleaner, cheaper and smart electricity available locally.

Mr. Honey Raza, CSO, Ginlong (Solis) Technologies Co.,Ltd. Solar Linked AC Coupled System Particularly for the Indian Subcontinent and ASEAN region

The present-day cities are responsible for 80% of greenhouse emissions and consume 75% of global energy. To tackle this issue the concept of smart cities came into being. Smart cities use technology to create efficiencies, sustainability, economic development and enhance quality of life factors for city dwelling people. They incorporate smarter energy infrastructure. Solar is the perfect matching partner to make this happen. This is mainly because solar is the only agile renewable technology which can be heavily decentralized and can be integrated into every component of a sustainable urban area like carports, street lighting, solar powered charging points, large buildings and even single houses. Besides offering a versatile solution, as it has the ability to be installed very close to consumption points, this avoids grid losses.

Solar Mobility EVs (Electric Vehicles) are quickly emerging as a global trend promising exciting opportunities along with zeroing in on putting an end to vehicular emissions. This can only be achieved by powering EVs using renewable energy. With the rapidly rising demand and usage of EVs in the future, solar is the only flexible renewable energy which can come to the rescue and justify the zero-emission purpose of EVs by avoiding consumption of electricity generated by conventional norms and also reducing additional loading on the grid.

load amongst these sources. These systems shall be prominent in solving the Government’s last mile electrification in the state. Such products shall be vital for the rural as well as the urban residential consumer market. The increase of digitalisation in the financial transactions and IT enabled services are also acting as a push for such systems last mile

intermittent. The regions have unstable grid and that’s the cause

places. If you compared with this system with off grid system the reliability and battery usability are better due to optimization of battery charging cycles and utilizing the sync between different energy sources like solar and grid.

of huge installation of decentralised USP (Uninterrupted power supplies) systems.Off grid

The system when clubbed with some support from the grid and LI-On batteries shall result

systems are gaining some demand but high OPEX year on year maintenance make the

in system life with our any replacement up to 10 years.

the requirement and grid conditions are quite different and

customers shy away from the installing the system. AC Coupled system shall be gaining high demand due to synchronisation with solar grid tied system as well and Battery system

Solar Wind Hybrid Plants for Utility scale

of provisional system availability in case of any grid outages. Such system didn’t gain much

Solar and Wind are proving out to be the good solution for the optimal utilization of BOS

attraction because of the innovation phase of product life cycle, had premium linked with

components already existing in the plant.

such solutions. As the technologies are now gaining dispersion and reaching to mass

These could act as the complementary energy sources in which solar can provide the better

commercialisation stage, we expect to have such system at affordable rates. These types of

CUF for the whole plant. Transmission lines which are unutilized during night time can also

system shall have 96% to 98% efficiency as compared to the 85 – 90% efficiency obtained

be exploited. Land can also be utilized well and expected saving from such plant can vary

in USP systems. This system fosters the better and efficient usage of grid tied system as

from 10% to 30% depending on the plant. I am happy that SECI is taking progressive step

uptime shall increase in the case of any grid outages.

toward realization of such plants and recent bidding of such plant have got good response

Hybrid System:

from the developers.

This system can combine more than one source of energy and allows the sharing of total

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Solar SolarQuarter Quarter••December December2018 2018 20

Cover Story

Mr. Somashekar T H, Director - Chief Technical Officer (CTO), Avi Solar Energy Pvt. Ltd. How IOT based monitoring & analytics platform is replacing traditional PLC based SCADA solutions With several Gigawatts of PV installations, huge amount of time series data from Solar PV plants such as meteorological data, string level measurements, transmission loss & generations data are collected. Such lengthy time series data from solar PV plants are no doubt highly multi-dimensional and challenging to process, but the bigger problem is getting clean data from various sensors in this case Combiner boxes, Inverters, MFMs & WMS. First generation SCADA comprised of rugged hardware called PLCs which connected to various sensors and collected data in digital format for further processing. There are plenty of SCADA systems with complex graphics, rugged PLC hardware, expensive servers in control rooms hungry for high bandwidth connectivity to transfer data over internet. Is that really what you need? A Solar PV Power Plant needs mostly monitoring with few elements of controlling. Hence you do not need a complex PLC based SCADA system. There are thousands of panels,

Dr. Weiming Zhang, EVP and CTO, Heraeus Photovoltaics The year 2018 was projected to be one of the best years for the PV market and it lived up to this projection in the beginning of the year. But, due to the China 531 policy and tariff announcements, the market situation changed quickly. At the moment, the market is in recovery mode and we expect PV market to be back on growth trajectory from 2019 onwards. Also, on the positive side, 2018 brought in and cemented some technology trends. Driven by the strong need for high efficiency technology and low prices, mono wafers started to take over market share from multi.

kms of cables, tons of connectors which if monitored gives information on health and performance of the PV plant. Equipment to be controlled are typically Inverters and Breakers.

Key challenges faced by the stakeholders are mainly:  Periodic maintenance and replacement cost of equipment’s at site.  Un-noticed String failures.  Efficiency & Unreliability.  Lack of swift Service. These challenges can be effectively addressed by continuous remote monitoring and asset management system. IOT based monitoring solutions are very economical, will eliminate cabling hazzles, reduces installation times and most important of all works on very low bandwidth uplink. IOT based platform, rendering its services to other industries- from simple sensors to smartphones and wearables – connected together. When the whole world is moving towards the IOT, why not Solar Industry? It’s high time to switchover from PLC to IOT based platform which works on GSM hotspots/ SIM cards, and can push the real-time data into the cloud server from the plant and one can pinpoint the problem at field within a few clicks.

family of silver metallization pastes enable higher efficiency for PERC cells. In 2019, we expect that passivated contacts, TOPCon (Tunnel Oxide Passivated Contacts) technology to gain momentum. TOPCon greatly reduces the recombination losses and significantly improves the Voc of the cell. We have already seen large scale implementation of this technology on n-type cells. Heraeus’ SOL7100 series of screen print pastes enable lower firing temperatures in order to reduce the impact of metal induced recombination, and maintain high cell Voc while also providing excellent contact resistance, thereby resulting in very high efficiency TOPCon cells. We expect that TOPCon technology will be a natural progression for p-type cells, thus enabling higher efficiency over PERC technology and

The market share for mono wafers grew throughout the year in 2018 and will continue in

bifacial modules.

2019. Wafer prices have dropped dramatically, in particular for mono, and are currently at

At the module level, shingled modules will start to become more mainstream in 2019.

$0.37/wafer. There have been several capacity expansions announced for mono, notably

Shingling provides more active cell area in the module and reduces the cell-to-module

LONGi announcing plans for 45GW by 2020. The need for high efficiency cells also drove

conversion losses. Another advantage of Shingled modules is that they can be made using

the requirement of mono wafers and the market share swiftly increased from 37% to 52%

multiple cell technologies including mono or multi p-type, PERC, Bifacial, Heterojunction,

through 2018 and we expect that trend to continue in 2019. At the cell level, mono p-PERC

etc. Heraeus has developed an Electrically Conductive Adhesive (ECA), Hecaro®, which is a

currently dominates the market. The relative ease in processing and the modest addition

reliable, cost-effective, fast curing and screen printable material that also enables shingled

to cell processing required for manufacturing these cells combined with the high efficiency

modules. We expect Hecaro® to lead the market in 2019.

potential were the main reasons for this rapid growth. Heraeus’ industry leading SOL9651

Mr. Brijesh Prajapati, Managing Director- India, Sofar Solar

Anti- rust Protection processes

4. 4-inch diamond white-bright screen. 5. Support RS485/WiFi/GPRS/Ethernet for data upload.

We are providing Local Sales-Service stock Availability, Product

6. Built-in SD card with 25 years data storage capacity for three phase inverters.

availability as per Market response. Market strategy on HYBRID &

7. Support web portal for online monitoring and APP for mobile phones.

STORAGE Inverter & Coming with our new technology products

8. Support Zero export solution and PID solution.

AUTOMOBILE ECO-CHARGER . To develop market with reliability, Products quality, prompt service response 1. Complete product series of string inverters. 2. Choose high quality components, such as higher voltage thin-film capacitor. 3. Well-designed inverter cases: Die-Casting Housings go through Anti-corrosion and

Mr. S. Balaguru, Chief Technology Officer, Avant-Garde Bi-facial modules with single axis trackers & surface preparation Prelude ‘Use both sides of Paper’ – this quote is now applicable for PV Modules too! Renewed interest in bifacial modules with the advent of p-PERC modules from Tier-1 manufacturers in the last couple of years has prompted tracker manufacturers to capitalize the advantage to improve their share in the Industry. On application front, surface preparation for Albedo (measure of irradiance reflected from surface) improvement to extract maximum yield from the system is greatly explored by the users.

Bifacial Modules: Bifacial modules are not new, but TIME has come for this technology only now to get into commercial scale! Though variants like HET & PERT have better bifaciality (ability for rear side gain) upto about 90% with no LID loss and intrinsically bifacial n-type cells, p-PERC variant (about 70-80% bifaciality) is likely to dominate the market owing to the entry of more Tier-1 manufacturers by adopting little changes (like rear contact grid) over the

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9. Local technical support for whole India market. 10. SOFAR SOLAR Inverters and distributors are insured by US CHUBB Insurance corporation company. We are very flexible in OEM Segment . We are doing Customized OEM Business with confidential Business Techno-Commercial terms with client.

well proven PERC technology with double glass arrangement, that comes with marginal additional cost over the conventional modules.

Single Axis Trackers: Fall of modules prices in the last 2-4 years was not helping the cause of single axis trackers, even in tropical zones. But, the arrival of bifacial modules in new avatar is looking to enthuse the tracker industry. Rear shadow avoidance is readily achieved for trackers with two modules in portrait arrangement. Even the trackers with two modules in landscape with end supported modules is an interesting option offered by a few tracker suppliers, but this requires detailed study from wind load perspective & concurrence from module suppliers. Modern day trackers with additional logics for back tracking, using diffuse light sensors and site gradient adjustments, will also help in improving yield.

Surface Preparation: Success of bifacial technology depends greatly on ground Albedo improvement. Among the various options of Albedo improvement, one promising option in terms of viability is to use surface sheets like the ones used extensively in farming sector. Ground Albedo, which is typically in 15-20% range could be improved upto about 50% by using proper mulching films or woven sheets, with a plan to replace them periodically. Such surface covering arrangement will even help in reducing O&M cost, as this would prevent weed growth and also help in reducing soiling of the modules.

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INDUSTRY Industry Insights INSIGHTS

Integrated Solar Modules: The Next Step In Solar Design & Technology

As the need for serious progress towards meeting renewable energy goals and sustainability practices becomes more and more urgent, the solar industry is responding by making it easier than ever before for consumers to adopt technology that mitigates our impact on our environment. Solar technology companies continue to grow and innovate their product offerings in order to provide consumers with more efficient, less expensive, and more aesthetically-pleasing options. Over the past few years, there has been a push to make solar panels less intrusive, longer lasting, and more effective. As a result, integrated solar modules are arriving on the market and increasing the design and installation options for consumers seeking to achieve their energy goals.

Integrated Solar Technology Integrated solar modules, also known as building-integrated photovoltaics (BIPV), are different from “traditional” solar installations (picture solar panels affixed to rooftops or to metal frames) in a number of ways. While different manufacturers and products mean that not every integrated solar module is the same, the primary difference is that these new solar panels can be directly integrated into building construction. So, rather than building

Products to Consider Among the innovative new products that are beginning to surface on the market are several different takes on integrated panels. Tesla, whose new technologies always generate plenty of press, has released a line of solar roof tiles with options that include textured, smooth, Tuscan, and slate. The “active” solar tiles look exactly like “inactive” tiles to create a truly seamless look. Sunflare’s flexible SUN2 cell modules are ultra-thin and can conform to irregular roof shapes because they do not require framing or glass coverings, while 3 IN 1 solar tiles offer a wide variety of colors and finishes, including completely concealed panels. Another product line (which we’ve discussed using to create aesthetically pleasing rooftop installations) is CertainTeed, a construction materials company that has recently expanded into solar tiles. Their Apollo II tiles match the profile of other concrete tiles to create a seamless, watertight roof with solar capabilities. MiaSolé offers flexible solar modules that can be fitted onto curved structures or incorporated into framing materials. Their product is so lightweight and low-profile it can even be used on the roofs of semi truck trailers. As more options continue to become available to consumers, they will have a wealth of

a mount and frame for panels on top of a roof, for instance, an integrated panel serves as

options to consider when integrating solar panels into new construction or retrofitting

the roofing material itself.

existing structures to include seamless solar capabilities. It’s an exciting time to be a solar

As the SEIA specifies, “Building-integrated photovoltaics (BIPV) are dual-purpose: they serve as both the outer layer of a structure and generate electricity for on-site use or

designer, and Solar Design Studio looks forward to sharing these new possibilities with our clients as we create PV systems that accomplish their unique goals.

export to the grid.” This means that, unlike traditional installations, there is often much less technology exposed to the elements, as connection points, microinverters, and power optimizers are housed inside the panel rather than being external components.

Credits: Mr. Bob Solger Specialist in the Innovative Design and Application of Solar Energy Technology

Benefits of Integrated Photovoltaics This new technology has been developed in response to consumer’s desires as well as the logistics of solar installation and maintenance. The resulting products are easier to install (especially when integrated into initial construction, but also when retrofitting existing structures) and maintain over the lifespan of the panel, which is similar to that of “traditional” external panels at approximately 25 years. Solar Power World notes that “Installers love that integrated panels just plug in to each other without any high voltage DC. This makes installation much safer and panels can be shut down individually if needed.” In addition, “because of their plug-and-play technology, integrated systems can be expanded without problems” which allows consumers to easily scale their installations up or down as their needs change. For consumers, integrated photovoltaics require less maintenance and may experience fewer complications as a result of housing more components internally. These panels are also less susceptible to environmental factors such as wind, rain, and hail because they are

“Integrated solar modules, also known as building-integrated photovoltaics (BIPV), are different from “traditional” solar installations (picture solar panels affixed to rooftops or to metal frames) in a number of ways. While different manufacturers and products mean

integrated into the building structure rather than separate from it.

that not every integrated solar module is the

Perhaps the most exciting aspect for solar consumers, however, is that integrated panels

same, the primary difference is that these new

can be seamlessly included in the design of their homes or buildings. As design elements, they can be almost invisible or create visual interest of their own if desired. Integrated panels are rated for roof construction and are just as watertight, insulating, and durable as the traditional roofing materials that they replace or interface with.

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solar panels can be directly integrated into building construction.”

Solar SolarQuarter Quarter••December December2018 2018 22

Industry Insights

NEW Solar inverter launched

· Max 98.6% Efficiency

20000TL/25000TL/30000TL/33000TL-G2

· Smart Monitoring

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commercial rooftops and utility projects

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Web: www.sofarsolar.com

Email: info@sofarsolar.com

Scaling Rooftop Solar Introduction

increase deployment in their license area. The scheme, which is named SRISTI (Sustainable

Solar electricity tariffs in India have declined significantly in recent years, making rooftop

Rooftop Implementation for Solar Transfiguration of India), is being reviewed after

solar (RTS) an attractive investment for commercial and industrial consumers. This has led

stakeholder consultation. Once it is implemented, it will provide incentives to the DISCOMs

to increased deployment of RTS systems among consumers in these categories, primarily

to install incremental RTS capacity from a base year, through the INR 14,450 crore (USD

to hedge the risk against increasing tariffs of grid electricity. However, in the residential

2.2 billion) earmarked for this purpose from the central financial assistance (CFA) scheme.

category, even though RTS systems are economically viable for highertariff consumption

Despite the favourable policy environment, the rate of adoption of RTS remains very

slabs, adoption has been minimal, with scale-up not growing as expected. Approximately

low due to several market challenges. Even though the market is becoming increasingly

49 per cent of the total RTS potential in the National Capital Territory (NCT) of Delhi is in

favourable for most consumer categories, it has yet to reach a point where RTS gains a

residential buildings, followed by the industrial, commercial, and government building

commodity status. RTS continues to be viewed as an investment, and the falling prices

sectors. This presents a huge market opportunity, especially with RTS systems becoming

of solar, the longer payback periods, and the lack of confidence in the 25-year life of RTS

cheaper year-on-year. In addition, the rising trend of electricity tariff and a conducive

stand in the way of higher penetration, especially in the residential sector. There is also a

policy landscape make the RTS option quite attractive. Recognising this context and the

supply gap in this sector created by the major solar players who target niche markets with

role of RTS in increasing the share of renewables in the city, the Delhi government has

high credit ratings, leaving out a large proportion of consumers.

implemented a much-needed solar policy that focuses on RTS above 1 kW. The policy has

The conventional rooftop business offerings are ineffective in addressing the challenges

set a target of 2 GW cumulative installed capacity by 2025 which would cover 21 per cent of the city’s peak load.

that exist in the market and hence there is a need for innovative business interventions to make RTS a viable option for all consumer segments. Indian DISCOMs could potentially play

Besides including unique provisions like group and virtual net-metering, the policy also

an important role in the RTS market by leveraging their close relationship with consumers

offers generation-based incentives (GBIs) for a limited period of time and mandates all

and institutions, thereby maintaining their position in the market while addressing several

government buildings with roof area greater than 500 m2 to deploy rooftop systems within

of the challenges faced by the stakeholders.

five years. In addition, the policy also calls for exemptions related to various transmission,

The Council on Energy, Environment and Water (CEEW), in partnership with the Delhi

open-access, and cross-subsidy charges. Another notable feature of the policy is its emphasis on the role of electricity distribution companies (DISCOMs) in facilitating the adoption of RTS in the city. The policy requires DISCOMs to take measures to ensure smooth and streamlined net-metering connection and system integration for consumers.

electricity distribution company, BSES Yamuna Power Limited (BYPL), has developed three utility-led business models to address the existing market challenges and to create a conducive environment for DISCOMs, consumers, and developers. Thus, the main objectives of the business models are to address the market challenges faced by stakeholders, make

At the national level too, the Ministry of New and Renewable Energy (MNRE) is

rooftop solar a viable option to all domestic consumer categories and thereby accelerate

implementing the Grid Connected Rooftop Solar Power Programme which is intended to

the RTS deployment in the BYPL licence area. The following section explores the market

encourage the DISCOMS to facilitate the faster adoption of RTS by incentivising them to

challenges, examines the business models, and assesses their economic viability. Credit: Scaling Rooftop Solar, Powering India’s Renewable Energy Transition with Households and DISCOMs, CEEW Report, June 2018

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Solar 23 Solar Quarter Quarter ••December December 2018 2018 23

INDUSTRY Industry Insights INSIGHTS

How Energy Storage Can Facilitate Solar Integration

In India, with the ever-rising fossil fuel imports and rapid urbanization choking many cities

With the rapid adoption of solar energy in India, there is a strong need for exploring the

with harmful pollution, the need for adoption of clean energy became more a compulsion

role of energy storage for facilitating solar integration. Ministry of New and Renewable

than a choice. India is moving rapidly towards RE. With increased investments and clean

Energy is launching a National Energy Storage Mission for addressing the needs for energy

energy installations, as well as the world’s largest renewables auction market, today we rank no. 2 after Chile as per 2018 Climatescope report by Bloomberg NEF. India has surpassed Japan to become the world’s third-largest market for solar power, and is projected to claim the number two spot from the United States later this year. Storing energy is as crucial as

storage at transmission level for ultra-mega solar parks, at distribution level to increase adoption of roof top solar and campus microgrids as well as for off grid systems for energy access. Under the proposed National Energy Storage Mission (NESM), the government

generating renewable energy. Essential to the successful growth of RE and EVs is energy

would soon release policy with a focus on ‘Make in India’ and the government is planning

storage.

to take all possible measures to incentivize advanced energy storage manufacturing in

If we really want to achieve the proud tag of global renewables powerhouse, we have to

India.

become the global leader in energy storage. A clear and ambitious strategic roadmap

NESM also addresses the issues related to the raw materials available for manufacturing

along with decisive action is required to take the lead on the energy storage front.

and the government had already started discussions with resource rich countries such as

India is aggressive looking to add 227 GW of renewable energy capacity by March 2022

Bolivia and Australia. The Indian government has already extended a red carpet welcome

and is aiming to achieve 100 GW of solar energy capacity by 2022.The challenges for India

to US-based storage, solar and EV specialist Tesla to set up a Gigafactory in India. There

in meeting its ambitious target are the ability of the grid to integrate variability associated with renewables, as well as the huge investment required to upgrade the transmission

are similar discussions ongoing with a few other major manufacturers.

and distribution infrastructure. The solution lies in advance energy storage that can help

Apart from Li-ion technology, India must look into other emerging technologies like flow,

to better integrate these renewables by providing multiple values to the system, such as

sodium-air, zinc-air, and aluminum-air batteries. IESA’s vision is to make India a global

optimizing T&D investments, addressing forecasting errors in wind and solar generation

leader in the adoption of energy storage, micro grids and EVs. We are consistently working

for more accurate scheduling, addressing local reliability issues by providing reactive power

with industry and policy makers to make India a global hub for manufacturing of these

support, and enabling end users to manage peak load, and more efficient utilization of

emerging technologies by 2020. We have also set a goal of reducing the cost of electricity

distributed renewables. With the rapid reduction in cost of both solar and storage, customers can see solar + storage as alternative for peak power from grid. At the same time, utilities can avoid investments in Peaker capacity or eliminate load shedding by utilizing these resources. This transition is supported by significant push for Giga factories for advanced energy

from micro grids in India by 30% to 50% in the next 3 years and are working to bring together various stakeholders to achieve this dream. Energy Storage is the enabling link between solar, EVs and grid. In 2019 a lot of moving and rapid change in the market is expected. The need of the hour is to shift our focus from

storage technologies such as li-ion that is driving down the cost of energy storage at a

discussions to action and immediate implementation of some large scale projects. We are

pace even faster than the solar PV cost reductions witnessed in past decade. Grid scale

confident that with platforms like Energy Storage India 2019, energy storage ecosystem

energy storage projects have witnessed costs to fall below $300 / kWh from over $1000 /

will also get newer avenues, thought exchange and effective roadmaps for advanced

kWh just 5-6 years back. It is anticipated that with scale up of deployment and also setting

energy storage technologies, regulatory and policy issues, renewable integration, future of

up of local manufacturing we can witness further reduction by at least 20-30 % with in

solar power in India, make in India, rural microgrid and off grid and a lot more. Consumers

next 3-5 years. As a result we are seeing range of projects at 100s of MWh scale getting implemented globally from US, Europe, China, Japan, Australia and even in South East Asia. Through the fast scale up of solar anticipated under National Solar Mission, energy storage can play a critical roles in India. Firstly, energy storage would be required for smoothing of the short duration intermittency caused by cloud / dust and secondly it can provide

also need large level of awareness and must realize the long lasting positive effects and accept & adopt alternative energy solutions. Government and Industry together can develop a favorable investment scenario to build a storage system for dependable energy distribution.

options to shift solar energy for 2-4 hrs. Per day to meet the evening demand. Globally, energy storage is being increasingly seen as an alternative to build peak power plants. Reserve energy storage systems are also capable of providing black start operations. Energy storage integrated with RE generates a smooth and firm output that is controllable, which subsequently reduces transmission congestion. It also has the potential to reduce the size of transmission and distribution infrastructure for the evacuation of intermittent generation. A key application for energy storage in transmission is to defer the investments on the upgrade for new capacity projects to overcome congestion. The National Electricity Plan (NEP) highlights the role of energy storage in maintaining grid security with increasing penetration of RE in addition to addressing the intermittency of RE to a large extent. At the consumer’s end, energy storage can be used as a back-up power while reducing the use of diesel consumption and integrating with solar rooftop PV systems, as well as a standalone back-up for reducing demand charges. India is fast becoming the global hub for the largest of solar parks. India has approved plans for 14 solar parks larger than Solar Star. Most of them lie in India’s northern deserts and southern parts. Through the right policy support, large scale solar parks with 100 MW and above could easily integrate energy storage to help improve the power quality and reliability issues that grid can face with rapid integration of solar energy.

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Author: Dr. Rahul Walawalkar, Executive Director, India Energy Storage Alliance (IESA); Chair, Global Energy Storage Alliance (GESA) and President & MD, Customized Energy Solutions (India)

Solar Quarter • December 2018 24 Solar Quarter • December 2018 24

Industry Insights

Market Challenges For Stakeholders All stakeholders in the RTS industry face various challenges that need to be addressed

Table1: Market challenges for stakeholders

by any intervention that is being planned. The different market challenges faced by the stakeholders are as follows. Consumers Consumers who wish to install RTS face issues like higher upfront cost and lack of access to finance. The majority of consumers still lack awareness about the benefits of, and the processes involved in, installing rooftop systems. There are also consumers who do not have roof ownership or lack access to suitable roof spaces. The long roof lock-in period of 25 years is a major concern for some consumers. Developers For developers, the smaller size of the rooftop system, the non-uniform characteristics of rooftops, and the fragmented distribution of installations contribute to higher costs of procurement and installation of the systems. For the same reason, access to finance for small rooftop developers becomes a challenge. Delay in approvals and other regulatory processes, the cap on solar system sizes due to limitations on transformer capacity and sanctioned load, and consumer inertia are some of the other challenges faced by developers. The collection of payments from a decentralised consumer base also presents a high transaction cost for developers. Financiers The creditworthiness of solar developers and consumers is a major concern for financiers when it comes to RTS owing to its small and distributed nature. It also requires disproportionately high transaction costs and is an administrative hassle for banks, due to which the latter are reluctant to undertake large-scale RTS financing for the residential sector. DISCOMs DISCOMs face a major risk of revenue loss because most early adopters are high-paying consumers. This also affects the crosssubsidy because the tariff collected from the highend consumers is insufficient to cover the subsidies to the subsidised consumers and the burden eventually falls on all segments of the consumers as the overall tariff increases. Credit: Scaling Rooftop Solar, Powering Indiaâ&#x20AC;&#x2122;s Renewable Energy Transition with Households and DISCOMs, CEEW Report, June 2018

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Solar Quarter â&#x20AC;˘ December 2018 25

Product Feature

PVFix - ‘Standing Seam’ PV Module Mounting Structure For Metal Roof PVFix is a brand of solar mounting structures developed by Sunshot Technologies. After working for 5 years executing over 150 projects, because of lack in the availability of quality solar mounting structures, Sunshot decided to take the initiative of designing developing cutting-edge modern mounting structures. Though solar mounting structures come right after the modules and inverters, the structure’s design engineering is not given needed attention as solar modules inverters. The module mounting structure is an equally essential part because it holds the costliest investment in the projects i.e the solar modules. In a market driven by innovation and cutting-edge technologies; Sunshot Technologies is proud to present, PVFix an all new range of solar mounting structures. Most of the solar mounting structure players have limited exposure to practical requirements of the EPC from installation, layout design, longevity of the plant generation perspective. Taking this into consideration, Sunshot started developing its own PV module mounting structures from scratch with help of inhouse experienced engineering design team. The structure designs are refined over the

Fig: Standing Seam’ PV Module Mounting Structures

period after extensive trials. As a result, now, PVFix has an excellent product line that could

Highlights:

solve common challenges faced by small as well as a large solar EPC player.

� Non-penetrative structure – clamps directly to roof

PVfix has an entire portfolio of the solar module mounting structures available for the

� Enable higher generation

variety of roof types that we see in India; be it a metal roof or RCC roof. Generally, roof is not maintained as good as other building areas. Therefore, roof conditions need to be taken

� Leakproof installation

into considerations while designing engineering solar module mounting structures. Also,

� Standard prefabricated components

other factors such as installation time, ease of installation, fixing method with base of roof,

� Designed for safety

leakage protection are equally important. PVFix is designed engineered keeping in mind

� Simple to maintain

these parameters learnings distilled from 5 years of experience across 150 installations more than 1000 sites. We have a portfolio of more than 8 variety of the structure designs catering to different requirements in the rooftop market.

� Long service life � Optimal cost � Excellent corrosion resistance

Technology Specifications: Product Description: ‘PVFix - Standing Seam’ structures are suitable for various standing seam metal roof profiles like Kalzip and Klip-lock and can be customized as per requirement using 3D printing technology.

Technical Parameters: � Designed for wind speed as per IS 875-3 � Made up of high-quality Aluminum material – AI6063 T6 Grade

� Middle and end clamps suitable for different module frame thickness

Advantages: � Easy to install customized structures designed and manufactured by PVFix enables EPC companies to commission power plant in record time period � ‘PVFix-Standing Seam’ structures help to construct power plant without any variation or alteration in the existing roof � Using ‘PVFix -Standing Seam’ structures, solar modules can be installed along with roof curve that improves aesthetics of the facility

� Tested for pull out strength of 2.8 KN

Pricing Trends For Solar PV Systems In 2018 We employ a bottom-up modeling methodology to track and report national average PV system pricing for the major market segments. Our bottom-up methodology is based on tracked wholesale pricing of major solar components and data collected from interviews with major installers.

Fig 1.

In Q1 2018, system pricing fell in all market segments besides residential. System pricing fell by 1%, 2% and 1.8% in the non-residential, utility fixed-tilt and utility single-axis tracking markets, respectively, while system pricing remained the same in the residential market. After two quarters of pricing increases across market segments, system pricing began to fall again. This quarter-over-quarter change in pricing was mostly spurred by the fall in module prices. Once the Section 201 module tariffs were announced at levels below market expectations, market certainty helped to drive down module costs – uncertainty during H2 2017 had led to substantial price premiums. Additionally, low procurement during Q1 2018 contributed to price declines compared to Q4 2017. These factors outweighed the actual module tariffs, resulting in lower module pricing in Q1 2018. The stagnation of system pricing in the residential market can be attributed to rising customer acquisition costs. We have seen customer acquisition costs steadily increase over the past four quarters, causing system pricing to rise in some quarters or producing a net-zero change in overall system pricing. Much of the market was in stasis in Q1 2018. Stakeholders throughout the value chain were waiting to see what the impact of the Section 201 trade case would be before changing course on pricing, technology selection, procurement strategies, construction management techniques or internal operations. -Mr. Sunil Rathi, Director- Sales and Marketing, Waaree Energies ltd

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Credit: SEIA/GTM Research U.S. Solar Market InsightTM Report

Solar Solar Quarter Quarter •• December December 2018 2018 26

Product Feature

Why choose SOFARSOLAR Inverters?

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Solar Solar Quarter Quarter ••December December 2018 2018 27

Product Feature

We Are Focusing On The Silicon Crystalline Based Product Using High Quality Of Raw Materials. Sova Solar Limited was established in 2008 to manufacture and market cost effective high quality solar photovoltaic products for grid-connected, off-grid power plants, solar

“Our photo voltaic modules are produced with

water pumps etc. We are focusing on the silicon crystalline based product using high

an efficiency of up to 20.08% with positive

quality of raw materials. We are supplying our products as per our customers’ needs which are supplied to the domestic and international customers. The machineries used for our production are of best qualities, like, Team Technik, Germany; Spire Corporation, USA etc supported with complete automation without robotics. The modules of the company are IEC certified and BIS approved. Our modules are PID free and 100% EL tested. Apart from that the products have got the certification from TUV Rheinland, ERTL, Solar Energy Centre, MNRE, Govt. of India. Besides this, we will promote PERC cells for solar module manufacturing in near future. As well as we are introducing solar panels with maximum

tolerance of 5%. We are making 72 cells/66 cells/60 cells/54 cells/48 cells/40 cells/36 cell modules ranging from 5Wp to 340Wp. By using high efficiency cells we are producing the higher watt peak modules.”

system voltage of 1500 volts for increasing performance of the solar modules.

Featured Product Sova Solar Limited is one of the leading solar module manufacturing in India. We have an annual capacity of 200MW per year on fully automatic machine with technological support and guidance from M/s Spire Corporation, M/S Team Technik, Germany, Auto well. We are basically the producer of poly crystalline module. Recently we have adopted a new technology called Mono–PERC to produce the modules. Our photo voltaic modules are produced with an efficiency of up to 20.08% with positive tolerance of 5%. We are making 72 cells / 66 cells / 60 cells / 54 cells / 48 cells / 40 cells / 36 cell modules ranging from 5Wp to 340Wp. By using high efficiency cells we are producing the higher watt peak modules.

“Our ambitious target is commercial and industrial sectors that have more enthusiasm for their large power bills. They have justified their expense of the solar power system. As well as we have a target of electrifying the residential areas and rural areas which will increase India’s power consumers’ sectors.”

Technology Specifications We are basically using p type-doping cells to produce the modules in the case of Poly crystalline silicon based cells are used. After producing the modules the Short circuit current(Isc),open circuit voltage(Voc), maximum power point voltage(Vmpp), maximum power point current (Impp), maximum power output (P max) are maximum in this module type.

Technology Advancements Now a days we are using a new technology Mono-PERC. In this technology, efficiency of the modules are very high (upto 20.08%). For this advancement, lower area of modules can produce higher output. Recently we have implemented dual stage EL checking. We expect that it will help in increasing our efficiency in this market. Besides this, we are introducing solar panel with maximum system voltage of 1500 volt which increases power density and performance of the solar PV module. Besides this, it will reduce the losses in DC cables, reducing capital costs, susceptibility to PID increases. It is expected that in the next five years 1500V system would see an increased market penetration around 95%.

Targeted Customer Segment Our ambitious target is commercial and industrial sectors that have more enthusiasm for their large power bills. They have justified their expense of the solar power system. As well as we have a target of electrifying the residential areas and rural areas which will increase India’s power consumers’ sectors. As well as we have a target market in foreign countries also. We have already sent our modules in USA, Japan, Germany etc and the output is satisfactory for all these countries. In near future, we are trying to export our modules in other countries.

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Solar Solar Quarter Quarter •• December December 2018 2018 28

Product Feature

All Module Ranges Have Been Certified To Highest Global Quality Standards Saatvik Green Energy is a new age solar technology company, involved in the manufacturing of high quality solar modules. The current product portfolio includes solar modules of all ranges starting from 40Wp up to 350Wp in both 4BB and 5BB. Saatvik uses both polycrystalline and mono-crystalline cells to assemble these solar modules, coupled with multiple rounds of testing during and after the manufacturing process, ensuring the highest quality product for its esteemed customers. All module ranges have been certified to highest global quality standards. Saatvik has successfully delivered more than 75 MW solar modules in its first year of operation, which have been successfully installed at various government buildings, government utilities, railway stations, hotels and universities. Apart from manufacturing, Saatvik has also forayed into Solar EPC services, making it an integrated solar company.

Featured Product Saatvik’s SGE 60M and SGE 72M Mono Series, has successfully completed testing for the entire range of IEC certifications, which gives Saatvik further competitive edge in the solar industry. Saatvik supports continuous adoption of new and advanced technology by the solution providers, and endeavors to provide them with the same for overall growth of the industry. Usage of Monocrystalline panels gives an additional advantage to the solution providers as they can install more capacity in limited space. Saatvik is able to achieve up to 18.78% module efficiency with Monocrystalline modules.

Technology Specifications SGE Mono Series is assembled on the same platform as the highest selling SGE Poly series, offering maximum reliability to its clients. It delivers a module level efficiency of as high as 18.78%, has high resistance to PID, can withstand 2400 Pascal wind load and 5400 Pascal snow load. The current range offering is from SGE 72M – 335Wp to 350Wp.

� IP67 junction box with extended cable lengths for easier installation. � Double stage EL tested. � Extended Mechanical load tested up-to 5400 pascals. � 25-year linear power performance warranty. � 10-years workmanship warranty.

Technology Advancements

� Also, available with black back sheet and black frame.

� High module conversion efficiency.

Targeted Customer Segment

� Outstanding power performance even at low irradiance.

We are targeting solar developers and EPC companies to help them achieve highest yields on their installations. They will get additional advantage over the already existing range of SGE Solar PV modules. This product is most suited for large scale projects, as well as high electricity consuming industries, commercial spaces, with paucity of roofs, so that they can maximize their solar generation.

� High PID resistant. � Easy to mount and ground.

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Solar Quarter • December 2018 29

Tech Insights

Solar Wind hybrid Plant: Technology & Policy Update A hybrid power plant in simple terms is a plant which generates power by using two or more sources of energy. These sources could be either conventional or non-conventional or both. Such power plants are preliminarily useful as they reduce dependency on a single source while also enabling the power plant to produce more power output. Now with the world’s focus on non-conventional power sources (solar and wind energy predominantly) it is important that such sources are utilized to their maximum potential. While individually, these sources have been performing quiet fair, there are still few concerns which needs to be addressed in order to utilize these sources efficiently. A simple yet innovative solution is hybridization of this technology or a hybrid solar wind plant (shown in Figure 1). Similar to the other hybrid plants, here both solar PV panels and wind turbines could generate electricity and feed it into the grid. With the target of 10GW by 2022 from such hybrid plants and with both the central & various state governments supporting this idea, hybrid plants are poised to increase. This blog thus aims to educate its readers on the basic technical details along with the advantages of such hybrid plants. Before understanding the technicalities of hybrid plant, it is important to understand why such plants are necessary at the first place. Its advantages are mentioned as below: 1. Complementary power generation: The first and foremost advantage of such hybrid plant in the complementary power generation. The solar power plant produce energy during the daytime whereas wind plants are generally known to produce (more) energy during evening and night (compared to daytime). The individual generation curves of solar and wind plant as evident from figure 2 below are intermittent in nature and could not adequately match the overall energy demand. This is where the hybrid power plants could be of utmost importance. Superimposing both these generation curves they could manage the overall demand to some extent (as shown in figure 3). Additionally with the central/state regulators pressing against providing schedule and forecasting of renewable power plants such hybridization (along with storage) could help power generators to closely match the given schedule while helping the SLDC/RLDC/POSOCO in getting power generation values (with certain tolerances) and balancing the against the power demands. 2. Increased capacity utilization factor (CUF): A capacity utilization factor in simple terms is the ratio of actual energy generation of the power plant to the maximum possible generation in such period (24 hours, 365 days in a year) under operation. A solar power plant (due to the limitation on availability of sun) has a CUF varying from 16-21%. A wind power plant (location wise variation of wind at different heights) may have CUF varying from 20% to 26%. This means that for about 74 to 84% of the time, the plant remains idle without any generation. Studies however suggest that CUF ranging from 35% to as high as 50% (in few cases) have been obtained for hybrid power plants. This means that a higher energy per watt could be obtained which primarily improves the plant statistics while holistically reducing the LCOE of the power plant (compared to LCOE of individual power plant). 3. Increased utilization of transmission capacity: Utility scale renewable energy plants are usually located quiet far from load centers. This means that adequate transmission infrastructure is required to transmit such power to load centers. Individual power generation curve of solar and wind plants clearly suggest that such transmission infrastructure remains un-utilized. With tens of lakhs required to erect a HV transmission substation, it is important to utilize it to maximum. This is where a solar wind hybrid plant comes into play. The hybrid plant due to its complementary nature of generation (as we explained above) could utilize such infrastructure more efficiently when compared to individual plant. 4. Efficient usage of land: The next advantage is that the hybrid power plants efficiently utilize the available land space. The land requirement of a utility scale power plant is in between 4-6 acre/MW. A wind turbine may vary in sizes and power output, however most commonly it would occupy an area ranging from 10 to 50 acre/MW (Source: NREL) (the wind turbine only occupies 5% of the area). The land savings per MW in hybrid plant could be as much from 10-30%. Additionally with same transmission infrastructure used to evacuate power, such costs could be reduced too.

As we mentioned above, the solar wind hybrid plant would be of importance given their advantages compared to the individual plant. With such understanding in place, let us understand the technical scheme in practice for a hybrid power plant. There are two categories by which there hybrid plant could be erected. They are: 1. AC coupled hybrid plant: An AC coupled power plant as the name suggest is the one where the individual power plant are interconnected at AC side. A single line diagram (SLD) for an AC integrated hybrid power plant is shown in Figure 4 below. The configuration of both solar and wind power plant here remains almost comparable to the individual standard plant with their output most likely integrated at HT panel of AC yard after individual meter. This ensures that the utility company knows the exact generation from each plant and financial settlements could be done accordingly (if PPA for the solar and wind plants were signed individually at different rates). Such integration may be perfect for plants existing solar/wind power plant are hybridized with new wind/solar power plant. This type of system would be more perfect for fixed speed wind turbine given the fact that they are directly integrated to the grid (using intermediate induction generator). 2. DC coupled hybrid plant: A DC coupled hybrid power plant (as shown in Figure 5) on the contrary is the one where the DC power output of individual is connected to a common DC bus. This entire power output is then converted to AC power by using a common inverter which is further connected to the grid. Such plants are termed in the market as “true hybrid” because they use the evacuation infrastructure to the maximum. This configuration is more often suitable for new power plants and/or for specifically with plants having variable speed wind turbine. This is because the capacity of common bus, inverter and the protection on both DC & AC side would require adequate planning which is not possible in existing plant. If optimally erected, such hybrid plant could offer a potential savings from INR 5-10/Wp. While the technology is in place, it was necessary that a policy specific to this technology was passed. This was also to ensure that in addition to erecting new plants, the existing solar/wind plants were given fair chance to upgrade their power plant by adding appropriate capacity of wind/solar power plant. The MNRE has released the solar wind hybrid policy where both AC & DC coupling is allowed, however to be termed as hybrid plant, the power capacity of one resource should be at least 25% of the rated power capacity of other resource. The hybrid plants are encouraged to sell the generated energy with all the available business models i.e. captive consumption, sale via open access, sale to Distribution Company via bidding or at APPC. It also allows power plants to install battery storage given its various benefits. Few states (Gujarat, Andhra Pradesh) have realized potential of hybrid plants and have released draft policies (hybrid policy of Gujarat is finalized and notified). With more states realizing its potential, such plants would increase in years to come. We at Waaree Energies could help you set up solar power plant at ideal locations. With an experience of executing more than 500+ MW EPC projects, the customer could be ensured that their plants would be up and running for more than 25 years. Let us all pledge to make solar energy the primary source of energy in the near future.

(Source: Gujarat SLDC)

Figure 2: Power output generation curve; solar power (left) & wind power plant (right)

5. Easier renewable energy purchase obligation (RPO) achievements: A RPO as the name suggest is an obligation for an entity (i.e. state distribution companies, open access customers and captive generators) to source a part of their energy need from renewable energy sources. It is divided into 2 components i.e. solar and non-solar RPO. While an enforcement of RPO is in place, (baring mere a few) as almost every obligator has been a defaulter. A hybrid power plant would help where both solar and non-solar RPO of an obligatory entity could be fulfilled.

(Source: Google images)

Figure 3: Super imposed generation curve of solar and wind energy in comparison to energy demand

-Mr. Sunil Rathi, Director- Sales and Marketing, Waaree Energies ltd (Source: Google images)

Figure 1: A solar wind hybrid plant

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Solar SolarQuarter Quarter• •November December2018 2018 3030

Industry Insights

DISCOM-led Business Models To effectively accelerate the deployment of solar rooftop systems among residential consumers in the BYPL area, the DISCOM needs to deploy business models that suit each of its different consumer segments. Given the solar value chain (Figure 8), the DISCOM can take up a combination of different roles to tailor the value preposition to a target consumer segment. The DISCOM can leverage its position effectively in the solar value chain through avenues such as payment assurance and financial guarantee, energy services, consumer aggregation, and supply aggregation.

individual households and the building society committee, issues of financing remained unresolved. Unless the society members are able to pay upfront, it is difficult for them to acquire financing because societies cannot avail long-term debts. Under the RESCO model, many of the societies do not qualify for the necessary credit and are unable to find a guarantor. Fig 1: DISCOM as facilitator

Considering the different consumer categories served by BYPL, as well as the strengths and the position of the utility, the following business models have been identified to have the most impact in increasing the adoption of RTS systems in its license area and in addressing major market challenges. Source: BSES Yamuna

i. Utility-led community solar: on-site and off-site models ii.

On-bill financing model

iii. Solar partner model: supply and demand aggregation While most of these models have been successfully adopted elsewhere, they have been customised to the current context through various additional mechanisms devised to address the challenges that are pertinent to the city. In Delhi, one of the DISCOMs, BSES Rajdhani, has recently undertaken consumer aggregation for residential societies in Dwarka where interested consumers can reach out to the DISCOM, which, in turn, connects them to developers. However, this model also faces many challenges when it comes to implementation. Besides the issues related to gathering support from multiple parties like

Box 1: Different solar metering provisions in India Gross-metering: In the case of the gross-metering scheme, solar electricity from the RTS photovoltaic (PV) system is fed directly into the

grid.

Consumers

receive

payment

from DISCOMs for solar generation at a predetermined tariff. Net-metering: In the case of the grid-connected RTS PV system, net-metering allows consumers to feed excess electricity into the grid which they can use in another time block. Normal meters are replaced with bidirectional meters which record electricity flow in either direction. At the end of the month, the total amount of solar generation is adjusted in the electricity bill and consumers are only required to pay for the net consumption from the grid. Virtual net-metering: In the case of virtual net-metering, consumers receive solar electricity credits in proportion to their ownership of a shared

community

solar

system.

Solar

electricity credits are adjusted in the electricity bill and the consumer only pays for the net electricity consumption.

Credit: Scaling Rooftop Solar, Powering Indiaâ&#x20AC;&#x2122;s Renewable Energy Transition with Households and DISCOMs, CEEW Report, June 2018

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Solar Solar Quarter Quarter â&#x20AC;˘â&#x20AC;˘December December 2018 2018 31

Product Feature

Gsolar Power Is Committed To Developing & Promoting Technology Of PV Industry. Gsolar Power Co.,ltd is committed to developing and promoting technology of PV industry, We are mainly producing solar cell and module testing equipment, such as Solar Cell Tester, Solar Simulator, EL Tester, Auto Cell Cutter, Auto Cell Tester & Sorter and so on. Gsolar invented the First EL and PL detector in China and is the Only PV equipment producer that has TUV/CE certification in china. We export machines to France, Romania, Poland, German, Italy, Japan, Taiwan, USA ,Africa, Spain, Croatia, Malaysia, India, Indonesia Venezuela, and so on

Strategy 1) Lead PV industry development, and Build international first class equipment manufacturing enterprise 2) Create value for customers and society, and Make staff and company grow together 3) Integrity operation, Leading technology, Keep improving, Win-Win cooperation 4) Sincere, Persistence , Commitment , Dedication

Business Scope GSOLA mainly has 3 series products, Solar Simulator, EL Tester and Solar Cell Cutter. Solar Simulator includes: AAA class solar simulator for mono and poly crystalline solar modules testing. A+A+A+ class solar simulator for PERC, HIT, HJT, N type, IBC, Shingled, half-cell module high efficiency solar modules testing. Double-Side Illumination Solar Simulator for BI-facial solar modules testing. GSOLA EL Tester resolution is up to 63 Mega Pixel, it helps solar module manufacturers control quality and improve modules quality. The Auto Cell Cutter uses contactless technologies, which reduce the efficiency losses in cutting process and ensure max power output.

Quality Control GSOLA has TUV, CE and ISO Certifications, and every one year, we have at least 10 patent certification more.

Customers & Partner GSOLA is serving all of top 20 solar module manufacturers in the world, such as TRINA, JA, GCL, RISEN, JINKO, TALESUN, LONGI, LERRI, YINGLI, JOLYWOOD, HANERGY, HT SAA, VINA SOLAR, BOVIET...... Besides, over 67 Indian solar module manufacturers are using Gsola tester, such as BHEL ,TATA , EMMVEE , HHV, WAAREE, GOLDI GREEN NAVITAS ,ALPEX, RENEWSYS ,PREMIER SOLAR , GreenKo Group , ACME……

Ambitious Project A+A+A+ Solar Simulator

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Solar Solar Quarter Quarter •• December December 2018 2018 32

Industry Insights

Using Municipal Bonds To Finance Rooftop Solar Developers There is both an opportunity and challenges of using municipal corporation for the

operation and management services being carried out by local developers. Globally, the

acceleration of rooftop solar. Therefore, if municipalities are to play a role in the necessary

third-party financing model has been a significant driver of growth in the rooftop solar

acceleration of rooftop solar in India, they will need to look for new sources of finance

sector. However, the third party financing model has not picked up in India at the rates

and business models to spur the required development. This will also require building

expected due to the lack of availability of debt capital at competitive cost, which affects

partnerships with local solar developers and other stakeholders in the domestic and even

the ability for companies advancing this business model to scale.

international financial markets.

Thus, to achieve further scale for the OPEX model for rooftop solar in India, alternative

There are two business models to deploy rooftop solar

methods of financing should be considered.

in India. �

The first one is the CAPEX model in which the consumer fully owns finances and

consumes the energy generated by the PV system. Consumers in the CAPEX model are fully responsible for all capital expenditures, and bear all risks of operations, management, and

maintenance.

CAPEX

model

Credit: Scaling up Rooftop Solar Power in India: The Potential of Solar Municipal Bonds, CEEW Report, June 2018

The

accounts

for approximately 84% of currently

existing

rooftop

solar systems in India and is mainly driven by commercial and industrial operators (BTI 2017).

�

The second model, is

the OPEX model or the third party financing model in which a renewable energy service company (RESCO) provides all the necessary capital and is responsible for

installing,

operating,

and maintaining the rooftop solar system in exchange for

fixedtariff

Power

Purchasing Agreement (PPA) with a customer, or multiple customers. This model is also referred as third-party financing model.

As CAPEX model is a selffunding

model

for

the

rooftop solar projects as far as the end consumer is concerned, it does not require

much

financing

from

external

support

entities. On the other hand, the third party financing model requires significant debt investment from the capital market. Hence, the municipal corporation can collaborate with the rooftop solar developers to facilitate the access of the debt capital from the capital markets under the OPEX model route. The OPEX model has been proposed as one of the promising address to

solutions several

scaling

barriers

rooftop

solar

discussed in section 2.3. According to a previous study (CPI 2016), the third party financing model is expected to dominate the rooftop solar market, given its benefits for consumers of no upfront and installation,

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Solar Solar Quarter Quarter ••December December 2018 2018 33

Technology News

ew Brilliant Iron Molecule May Be the Key to Cheap Solar Energy

ackling Water Shortage with Solar Power

Water and its management is the biggest challenge that India faces today. Nearly 600

Scientists are looking at some of the most unlikely sources for energy production, partly

million people, half of the country’s population, are facing high to extreme water stress.

motivated by academic and research objectives, and partly to create a new framework of

About 70 per cent of the water is contaminated. And by 2030, India’s demand for water is

energy production and extraction.

likely to become double of the available water supply.

Though some raise eyebrows due to perceived feasibility challenges like China’s artificial

The effect of this scenario could be adverse on India’s economy, with some experts

sun ambitions, or the device that was developed to convert exhaust into renewable energy,

forecasting a massive 6 per cent loss in the country’s GDP because of the same. Needless

the sheer number of examples of creative energy generation are truly inspiring.

to say, major interventions are needed immediately to make the use of water sustainable,

Now, researchers have produced an iron molecule with photocatalytic promise, and it

efficient and guided by a deeper understanding of how our water resources can effectively be managed for future generations. Join the conversation and make a difference. To ensure access to water for all, India needs to look at new ways to obtain and sustain

could provide large benefits in terms of both (1) electricity generation in solar cells and (2) fuel production. As iron is a more plentiful and cheaper to supply source of metal, this will also have an impact in the industry.

usable water. Solar technology plays a big role in this. � The United States is using a water generation technology powered by solar energy. This technology creates potable water out of air using nothing but salt and solar power. � Israel, a global leader in desalination, is leveraging a low-cost, scalable, and eco-friendly technology which uses only the power of the sun to purify seawater. � Saudi Arabia has launched a major solar power initiative that will cut the cost of water production by 40 percent.

Advanced Molecule Design Leads to Progress A growing body of research in the last decade has shown the strong potential that other metals can have in photocatalysis, with scientists focusing on iridium and ruthenium more and more “due to the access they provide to new synthetic spaces through new reaction mechanisms”. The challenge, however, lies in how rare they both are. The team produced its results by altering their approach to the molecular coordination,

With India facing its worst water shortage in history, it’s time to push for sustainable water

which allowed them to create an iron molecule that resulted in iron-based light that was

development immediately. Become a part of this revolution. Participate or visit Water

observable at room temperature, a first in science, although their work builds on previous

India Expo starting from 22 to 24 May, 2019 at Pragati Maidan, New Delhi, India.

studies in the same area. “The good result depends on the fact that we have optimized the molecular structure around the iron atom”, explains colleague Petter Persson of Lund University, who was also part of the study.

ew Solar Panel Material Can Take More Heat

oncentrated Photovoltaics Achieve Solar Conversion Efficiency Record Of 41.4%

A new synthetic material will make solar energy a more cost-effective, efficient, and reliable

We know a lot about solar panels. We hear about Solar Roof products from Tesla.

source of power.

Concentrated solar power is showing promise in some large scale applications.

Clean energy is at a crossroads. To become a viable replacement for fossil fuels, solar power

Concentrated photovoltaics (CPV) is a type of solar power that falls somewhere in

plants must first improve their efficiency to match the electrical output of nonrenewable energy sources. This relies heavily upon the innovation and development of new products that absorb and exchange heat at higher temperatures.

Heating Up Unlike the solar panels on hybrid cars or residential rooftops, the ones found in solar power plants are massive and numerous. They absorb as much thermal energy from the sun as they possibly can and channel that heat into a fluid-filled converter called the heat exchanger. There, supercritical CO2, a liquid version of carbon dioxide, acts as the medium in the

between all those other categories but doesn’t get a lot of attention. It uses lenses and curved mirrors to focus sunlight onto small, but highly efficient, multi-junction solar cells, according to Wikipedia. In addition, CPV systems often use solar trackers and a cooling system for even greater efficiency. Last week a research consortium called CPVMatch, which is funded by the European Union and led by Germany’s highly respected Fraunhofer Institute of Solar Energy Research, announced that its latest experimental CPV solar module has achieved an incredible solar conversion efficiency of 41.4%. The secret to the new module is the use of achromatic lenses that focus incoming sunlight on miniaturized multi-junction solar cells. A two-axis

energy conversion. The hotter the fluid gets, the more electricity that can be produced.

solar tracker is also employed to boost efficiency during the day.

Still a new technology, using supercritical CO2 as the medium fluid lowers electricity

CPVMatch has been working toward the goal of making CPV technology production-ready

and manufacturing costs and promises greater efficiency for future power plants,

for the past 3½ years. It has merged the efforts of researchers in Germany, Italy, Spain, and

researchers say. However, the current metal materials used to construct heat exchangers

France. It is not enough to set records in the laboratory if the results cannot be translated

in supercritical CO2 energy cycles are only stable up to 550 degrees Celsius, according to

into commercial products at an affordable price.

Dorrin Jarrahbashi, an assistant professor in the mechanical engineering department at Texas A&M University. If the heat rises above that, the components begin to rapidly break down and lose effectiveness—and ultimately need replacement. To combat this, researchers created a new composite material from a combination of

By using new materials, processes, and manufacturing equipment, they have created innovative cell architectures for multi-junction solar cells. In addition, they were able to improve the design of the high concentration modules by modifying the optics and

ceramic and tungsten, a refractory metal, that can withstand temperatures over 750

making use of achromatic lenses. “We are extremely pleased about these results that pave

degrees Celsius. This leap in heat absorption could increase the efficiency of generating

the way for further efficiency increases in the concentrator technology,” says Dr. Andreas

electricity in integrated solar and supercritical CO2 power plants by 20 percent.

Bett, director of Fraunhofer ISE.

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Solar Quarter • December 2018 34 Solar Quarter • December 2018 34

Technology News

erovskite solar cells: cheaper production and high efficiency

ew property revealed in graphene could lead to better performing solar panels

A team of chemists from Kaunas University of Technology (KTU), Lithuania together with

An international research team, co-led by a physicist at the University of California,

physicists from Helmholtz Zentrum Berlin (HZB) science institute, Germany are offering

Riverside, has discovered a new mechanism for ultra-efficient charge and energy flow

novel approach for the selective layer formation in perovskite solar cells. The molecule,

in graphene, opening up opportunities for developing new types of light-harvesting

synthesised by the KTU chemists, assembles itself into a monolayer, which can cover a

devices.

variety of surfaces and can function as a hole transporting material in a perovskite solar cell. Less and cheaper materials are being used in the process. Perovskite-based solar cells are fast forwarding to the front of emerging photovoltaics, already competing on efficiency against well-established solar technologies used in solar panels around the world. An important step towards mass production of this new generation solar cells is the development of efficient selective contact layers that would be compatible with the deposition of perovskite layers on various substrates. Spin-coating and vapour deposition are the two main methods which are currently being used for the formation of the layers in perovskite solar cells. Spin-coating involves dripping liquid solution on spinning surfaces; during the process large quantities of the material is being lost. Vapour deposition needs high temperatures and complex vacuum technologies, besides, not all the molecules are suitable for evaporating. KTU chemists have synthesised a molecule assembling itself into a monolayer, which can evenly cover any oxide surface -- including textured surfaces of the silicon solar cells used in tandem architectures. The synthesised material had to be tested. The team of physicists of HZB in Berlin, Germany headed by Dr Steve Albrecht, in collaboration with KTU doctoral student Artiom Magomedov successfully used this new material as a hole transporting layer in perovskite

The researchers fabricated pristine graphene — graphene with no impurities — into different geometric shapes, connecting narrow ribbons and crosses to wide open rectangular regions. They found that when light illuminated constricted areas, such as the region where a narrow ribbon connected two wide regions, they detected a large light-induced current, or photocurrent. The finding that pristine graphene can very efficiently convert light into electricity could lead to the development of efficient and ultrafast photodetectors — and potentially more efficient solar panels. Graphene, a 1-atom thick sheet of carbon atoms arranged in a hexagonal lattice, has many desirable material properties, such as high current-carrying capacity and thermal conductivity. In principle, graphene can absorb light at any frequency, making it ideal material for infrared and other types of photodetection, with wide applications in biosensing, imaging, and night vision. In most solar energy harvesting devices, a photocurrent arises only in the presence of a junction between two dissimilar materials, such as “p-n” junctions, the boundary between two types of semiconductor materials. The electrical current is generated in the junction region and moves through the distinct regions of the two materials.

solar cells.

apan Display unveils smart bus stop that runs on solar power and can display schedules

Japan Display Inc. unveiled a smart bus stop Tuesday featuring a 32-inch screen that runs solely on solar power and internal batteries. The product, developed jointly with partners including Nishi-Nippon Railroad Co., consumes very little power and does not require power source installation work. It can be used even during blackouts stemming from natural disasters. Japan Display plans to install the device at up to 2,000 locations from 2019 in the city of Kitakyushu, where a demonstration test for the smart bus stop is underway. Bus schedules and other information shown on the stop’s liquid crystal display are updated through communications technology. The bus stop can also be used to display advertisements, local information, and directions to emergency evacuation centers in

STOP

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the event of a disaster. A Japan Display executive emphasized the company’s wish to strengthen product development. At present, smartphone displays for Apple Inc. and

EES ENGINEERS SIMPLY

other makers account for a large part of its sales.

WORK AS YOUR IN-HOUSE

“We need to do something new in a shift away from our intense devotion to mobile

ENGINEERING TEAM

devices,” Managing Executive Officer Yoshiaki Ito told a news conference. In Japan, there are 500,000 bus stops nationwide with nearly 90 per cent with no power supply. This means an off-the-grid, cost effective installation is a requirement for the project. By combining E Ink low power display technology with low power, wide area (LPWA) wireless technology, the bus stop displays can be easily installed using solar power only – without power or network cables. “It is expected that this will facilitate widespread fulfilment across the bus network in the future, therefore benefitting more users and helping to boost service adoption,” commented Rado Skender, Director of Business Development at Papercast.

Design & Engineering

Project Management Consultancy

3rd Party Review

Independent Plant Audit

Managed remotely through the Papercast data management platform, the multi-lingual displays will present live bus arrivals, timetables, route data, route transfers, service alterations and a range of other travel advice.

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info@excleng.com

022-2778 3636

Solar Quarter • December 2018 35 Solar Quarter • December 2018 35

Company News

ARTEK bags 400-KV power grid order

ubi Solar - Set To Revolutionize The Indian Power Industry

Hartek Power, the EPC arm of the Chandigarh-based Hartek Group, has bagged a

Lubi Solar is a leading solar manufacturing company in India. The company has a rich

prestigious order from the Power Grid Corporation of India Ltd for augmenting an extra

history in India and diversified into solar business in 2012.

high-voltage 400-KV substation project spread over three states. Encompassing Uttar Pradesh, Haryana and Rajasthan, the project will cater to a population of about 7 crore. The scope of work of the project entails complete execution of the substation package involving conversion of fixed line reactors into switchable line reactors with the purpose of curtailing outages. The project, which will go a long way in

The company owns a 150 MW manufacturing facility spanning across 30,000 square feet area equipped with world class machinery. Today Lubi Solar offers solar modules, rooftop solutions and solar water pumps to its customers. The company provides total turnkey project development solutions starting

strengthening the northern grid, is scheduled for completion by February 2020.

right from design, development, construction, and maintenance of on-grid solar systems.

Under this PGCIL project, Hartek Power will convert fixed line reactors to switchable Line

Lubi Solar offers both mono and polycrystalline solar modules. Solar panels manufactured

reactors so that these devices can be optimally used to curtail line outages at 400-KV

by Lubi Solar comply with stringent international standards. Lubi solar panels are highly

substations located in Ballia and Sohawal in Uttar Pradesh, Kankroli in Rajasthan and

efficient made by using high efficiency cells procured from globally renowned suppliers.

Abdullapur in Haryana.

The modules deploy 5 busbar solar cells which improve the overall efficiency.

Current-limiting devices which counter rapid variations in voltage, reactors stabilise the

The monocrystalline solar modules are available in 290 W – 310 W and 350 W – 370 W

frequency at which electricity is transmitted and distributed by filtering the disturbances

range. These modules have a higher module conversion efficiency of up to 18.57% from

in the power system. Switchable line reactors have a distinct advantage over fixed line reactors as unlike fixed line reactors, they can better deal with the surges in voltage by deactivating the flow and cutting off the supply. Fixed line reactors, on the other hand, can only regulate the flow of voltage and are more prone to breakdowns as they have to run continuously with no provision of shutting down and disconnecting the flow. Working on a war footing to augment the transmission and distribution infrastructure

using PERC technology. On the other hand, polycrystalline solar modules are available in 260 W-275 W and 310 W – 330 W variants. These panels come with 25 years of linear performance warranty. In just a short span of time, Lubi Solar has installed several grid-tied rooftop solutions ranging from 25 kW to 1 MW in Gujarat, Uttar Pradesh, Tamil Nadu, Rajasthan etc.

in sync with the unprecedented increase in power generation in recent years, the PGCIL

Lubi Solar is a leading solar pumping systems supplier in India. Most of the solar pumps

is heavily investing in upgrading low and high-voltage substations to extra high-voltage

can be conveniently used in flood irrigation of small fields, drip irrigation for farms, cattle

substations so as to ease the pressure on transmission lines caused by rapid surges in

watering and water supply for small villages.

electricity flow.

The Indian power industry is witnessing a revolution and companies like Lubi Solar are set

A pioneer in setting up power systems, Hartek Power has created immense value in the T&D value chain, as reflected in its execution of more than 200 high-voltage and extra high-voltage substations and transmission lines.

to bring a change in the industry with a wide range of solar products and solutions, a large footprint, and rich history of the Indian market.

ooperation Of Solar-Log™ And Guangzhou Sanjing Electric Co., Ltd

unel and Huawei Partner to Promote the Development of Solar Photovoltaic Globally

Sunel Group, a world-renowned EPC contractor and developer, signed a comprehensive

Solare Datensysteme GmbH, manufacturer of the Solar-Log™ Monitoring system, and SAJ,

cooperation agreement with Huawei Smart PV in Huawei Shenzhen Headquarter.

manufacturer of PV inverter have come to the conclusion to further develop the interaction

Mr. Konstantinos Zygouras, CEO of Sunel Group and Mr. Chen Guoguang, President

between professional Monitoring and Energy Management as well as professional inverter

of Huawei Smart PV Global Sales and Service, as well as many other senior leaders

technology in markets like Belgium, Netherlands, Hungary, Poland and other markets as

attended the signing ceremony to announce a wide-ranging partnership, especially

well.

for MENA, East Europe and UK. In 2019, the total cooperation pipeline will be 500MW-

Starting this November 2018, Solar-Log™ is now compatible with SAJ PV inverter types and

600MW, with the first project of 26MW being constructed in Malawi, at which Sunel will

able to visualize and monitor all important values provided by this professional inverter

implement the Huawei STS (Smart Transformer Station) and other new technologies.

manufacturer from China.

Within the scope of its global growth strategy, Sunel has reached the development,

In the near future mutual customers will have the possibility to buy attractive Sales Packages

design and execution of more than 2 GW of solar PV projects in more than 25 countries

including SAJ inverter and Solar-Log™ Monitoring & Energy-Management-System. These

so far. Having a highly customer oriented strategy, Sunel has long term collaborations

Sales Bundles will be offered by SAJ directly and their distribution partners in different

with many international investors, supporting them in several countries, delivering

countries.

high performing projects, adding value to their investments by generating higher

First mutual projects are already realized in Poland, Sweden and Chile.

yields, increasing reliability and providing long lasting solutions.

“The cooperation with SDS allows us to offer our customers a flexible and high efficient

“We believe that combining the Huawei smart products with our customer oriented

system including a professional Monitoring solution in combination with our SAJ inverter.

services, we are going to add more value and generate a reliable, sustainable business

We are happy to have a professional partner giving us the possibility to combine our

model that will be implemented with success. The solid presence of Huawei and Sunel

professional PV inverter with Solar-Log™ functionalities like optimization of self-

globally, jointly assures our customers for the continuous support of their investments

consumption, Feed-In Management, Smart Energy and many others, said Lina Wong,

in the long term, guaranteeing high returns, an effective and high standard O&M

Director of Global Business at SAJ.

package and resulting to a lower LCOE.” Mr. Gonzalo Navarro, CTO of Sunel Group, said:

Markus Grünwald, Global Strategic Business Coordinator at Solare Datensysteme GmbH

“Solar PV market is globally transforming and indicates that only with high flexibility,

says “SAJ is an experienced and valued partner in the area of PV inverters and knows

continuous innovation and reliability we can overcome any challenges. These are the

how important it is to offer a professional Monitoring & Energy Management System in

values we saw in Huawei and decided to partner for our projects.”

combination with PV inverters. We are delighted that we can support SAJ’s activities in

Mr. Zygouras pointed out that MENA is a very competitive market. It offers great

global market with our products and solutions.”

opportunities if the challenges are managed effectively. The low figures of IRR in the

The participants of the excursion on the premises of Solare Datensysteme GmbH

investments are pushing the contractors and suppliers to provide smarter solutions

(Solar-Log™)

that can generate lower LCOE figures and be reliable for the long term.

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Solar Quarter • December 2018 36 Solar Quarter • December 2018 36

Company News

inkoSolar Joins 49 Global Businesses To Urge Governments To Step Up Fight Against Climate Change

ofarsolar were Voted As The Most Preferred Inverter By Consumers

JinkoSolar Holding Co., Ltd., today joined 49 major global businesses with total revenue

Sofarsolar Attended Inter Solar India Exhibition And Were Voted As The Most Preferred

of US$1.3 trillion in signing an open letter urging governments to increase collaboration

Inverter By Consumers.

and step up the fight against climate change.

The Intersolar India Exhibition was held in Bangalore International Exhibition Centre.

Leaders from the Forum’s Alliance of Climate Action CEOs are committed to using their

Sofarsolar, one of the world’s largest solar inverter and hybrid inverter companies in China

positions to help meet the Paris Climate Agreement goals. Thirty of the companies that

showed its top selling products and the latest inverters in this exhibition, which attracts

signed the open letter reduced their emissions by 9% between 2015 and 2016, the

the attention of many Indian customers. At the same time, Sofarsolar won the award

equivalent of taking ten million cars off the road for one year.

named “Solar consumer choice brand awards 2018”.

The open letter was signed ahead of the UNFCCC climate conference in Katowice, Poland

The Indian market is not new to Sofarsolar. In 2016, Sofarsolar branch was established.

where government leaders met this week to review progress towards delivering on the

Since then, Sofarsolar has kept the high position in India solar inverter market.Now all

goals set in 2015.

products are widely used through ground, industrial, and commercial power stations,

Alliance leaders call for greater public-private cooperation to accelerate effective carbon

which have been immensely well-received by Indian customers.

pricing mechanisms and policies to incentivize low-carbon investment and drive demand

During the exhibition, Sofarsolar was voted as the most preferred choice by consumers,

for carbon-reduction solutions. They also highlight the business case for cutting emissions

won the award named “Solar consumer choice brand awards 2018”. Why is sofarsolar

to generate wider support in the private sector.

widely recognized in the Indian market?

JinkoSolar announced its unaudited financial results for the third quarter ended September

Vice President of Sofarsolar, David Zhong, has released comments stating that we try to

30, 2018. Total solar module shipments hit JinkoSolar’s record high of 2,953 MW, an

do two issues in the Indian market, one is to do a good products, the other is to do a good

increase of 5.7% sequentially and 24.4% year-over-year. Total revenues were RMB6.69

service. During these years, Sofarsolar has put quality and service as the most important

billion, an increase of 10.5% from the second quarter of 2018 and an increase of 4.3%

criteria in the design, production and daily operations.

from the third quarter of 2017. For the full year 2018, the Company estimates total solar

With the continuous growth of the power demand and cost throughout India, the country

module shipments to be in the range of 11.5 GW to 11.8 GW.

has been focusing on accelerating their transition to renewable energy sources. Sofarsolar

“This is one of the last chances we have to reverse course and we should act now before it’s

will seize the market development opportunity, launch more solar inverters suitable for

too late, especially when grid parity is just around the corner,” commented Mr. Kangping

market demand, deepen services, further expand the Indian market, and increase the

Chen, Chief Executive Officer of JinkoSolar.

share of Indian market.

Part of

ongi Solar Named Tier-1 Module Manufacturer In Q42018 Bloomberg New Energy Finance Report

LONGi in select group of PV Manufacturers meeting BNEF’s Tier 1 criteria

DNV-GL recognizes LONGi as “Top Performer” in their PV Module reliability Scorecard

Hosted by

14 - 17 JAN 2019 | ADNEC, ABU DHABI

2018 -

Meet the decision-makers responsible for MENA’s massive project rollout at WFES Solar.

LONGi ranked as the most financially stable PV manufacturer in Asia, second worldwide.

Bloomberg NEF’s criteria require module manufactueres to have supplied own-brand, own-manufacture products to six different projects over 1.5MW that have been financed by six different banks in the past 2 years. Moreover, manufacturers in China, India and Turkey are subject to a more stringent rule that requires the project to be non-recourse,

MENA's PV project pipeline in 2018 amounts to 11.86 GW; over ten times the existing installed capacity in the region.

which means the bank undertakes the risk in the event of the modules failing. LONGi met all criteria and is joint fifth in the list in terms of in-house manufacturing capacity. “We are delighted, but of course not surprised, to be named in BNEF ‘sTier-1 supplier,” said Li Wenxue, President of LONGi Solar. “Consistently meeting and exceeding the bankability requirements for a range of investors is a must for any serious manufacturer, particularly

33,000

$15bn

850

Attendees From 170 Countries

Worth Of Projects Announced

Exhibiting Companies

as LONGi looks to further develop its international reach.” The report also updated the Altman-Z ratio of solar module manufacturers that measures the company’s financial security. The test predicts the probability of a manufacturer going bankrupt in the next two years. LONGi was ranked the most secure company in Asia and

Access a World of Networking Opportunities

second of all PV manufacturers worldwide. While BNEF’s Tier 1 and Altman-Z are strong indicators of a manufacturer’s bankability, quality and reliability require a different measure. In its fourth annual PV Module Reliability

Scorecard Report 2018, DNV GL, named LONGi Solar a “Top Performer” for module

14 - 17 Jan 2019 | ADNEC, Abu Dhabi

reliability. DNV GL awards are based on 4 stringent PV module reliability laboratory tests, comprising: thermal cycling, damp heat, dynamic mechanical load and potential induced degradation. LONGi Solar received is “Top Performer” in all four tests categories.

Key Sectors WFES

ENERGY

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WFES

WATER

WFES

EcoWASTE

Organised by WFES

SOLAR

WFES

GREEN BUILDINGS

WFES

MOBILITY

Solar Quarter • December 2018 37

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Industry Insights

Solar Market Insight Report 2018 Q2 Market Outlook GTM Research forecasts U.S. solar to be essentially flat in 2018. With nearly two-thirds of the 2018 utility PV pipeline consisting of relatively less price-sensitive renewable portfolio standard projects and projects currently in construction that secured tariff-free modules (either crystalline-silicon PV delivered before the tariffs went into effect or non-subject thin-film or domestically produced modules), tariff impacts on 2018 will be somewhat mitigated. The non-residential market will fall as a pipeline of projects grandfathered in under a more favorable policy and incentive environment wanes in 2018. Residential PV is expected to be flat given lingering weakness in major markets, which will lead to these markets seeing flat growth or contraction this year.

“Flat growth forecasted for 2018 allows for a more robust rebound in 2019 as the market aligns to the growth expectations of small and medium-sized installers leveraging less expensive

customer-acquisition

channels.

Growth rates exceeding 10% are expected to resume in the early 2020s, in part bolstered by

In the medium term, more price-sensitive procurement drivers such as PURPA and voluntary procurement by utilities (i.e., projects made viable due to their economic competitiveness) will not pencil out under increased price assumptions due to the Section 201 module tariffs. The utility segment is still expected to grow 5% in 2019, but growth will be relatively flat from 2021-2022 as the declining module tariffs delay projects that were initially slated for completion in 2020-2021. Going forward, utility PV will continue to be driven by procurement outside renewable portfolio standards, with more than 75% of the current pipeline coming from voluntary procurement, PURPA, offsite corporate procurement, and California-based community-choice aggregators.

the California mandate for all new residential housing to include rooftop solar, in addition to emerging markets beginning to account for a larger share of the residential segment, while ITC demand pull-in will boost growth in 2021 ahead of its expiration in 2022.”

For residential PV, the widespread customer-acquisition issues in major state markets that afflicted the segment in 2017 are only exacerbated in an increased pricing environment. This is especially true for large national installers

scaling

back

expensive

sales

Fig 1.

channels and transitioning to lower-cost customer-acquisition strategies in pursuit of profitability. These challenges are expected to continue in the near term for large national installers, though 2018 is expected to represent the bottoming out of this trend as more local installers grow to capture larger shares of the market.

Flat growth forecasted for 2018 allows for a more robust rebound in 2019 as the market aligns to the growth expectations of small and medium-sized installers leveraging less expensive

customer-acquisition

channels.

Growth rates exceeding 10% are expected to resume in the early 2020s, in part bolstered by the California mandate for all new residential housing to include rooftop solar, in addition to emerging markets beginning to account for a larger share of the residential segment, while ITC demand pull-in will boost growth in 2021 ahead of its expiration in 2022.

Fig 2.

Meanwhile, the non-residential PV market is expected to experience two consecutive down years as the grandfathered project pipeline wanes in 2018 and the market acclimates to a reduced incentive environment across major state markets in 2019. However, this will be incrementally offset starting in 2020 as the next wave of states with robust community solar mandates – New York, Maryland, Illinois – begin to see the realization of those pipelines. Solar-plus-storage viability will also begin to have an impact on non-residential demand. By 2020, 28 states in the U.S. are expected to be 100+ MWdc annual solar markets, with 25 of those states being home to more than 1 GWdc of operating solar PV. This compares to only two states with 100+ MWdc annual solar markets in 2010.

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Credit: SEIA/GTM Research U.S. Solar Market InsightTM Report

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Email: ind@jinkosolar.com w w w . s o l a r q u a r t e r . c o m

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