What city energy manager needs to know and to have

ENERGY MANAGER IS NOT A DATA COLLECTOR FROM METERS TO PUT THEM INTO EXCEL, HE/SHE DOES NOT ONLY DEAL WITH INVOICE PAYMENTS ACCORDING TO CURRENT ENERGY CONSUMPTION AND IS NOT LIMITED TO ENERGY PURCHASE COMPETITIONS. THE ENERGY MANAGER SHOULD BE A KEY STRATEGIST WHO CAN PREPARE INVESTMENT PROJECTS IN THE ORDER OF TENS OR HUNDREDS OF MILLIONS OF CZK AND ENABLE THE CITY TO BECOME MORE ENERGY SELF-SUFFICIENT, SAFER, MORE DEVELOPED, AND RICHER.

: Energy manager: energy infrastructure governor

If any organization needs to carry out energy infrastructure management, it is necessary to defi ne:

· ENERGY AREA: these are the exact boundaries of the area under energy management · COMPETENCES: this is a precise definition of the competencies of the energy manager in each area

In the case of a municipality, these are:

· SUPPORT AND COOPERATION OF THE CITY MANA-

GEMENT (financial and procedural), i.e., the statement of the local government that it has a real interest in the management of energy infrastructure in its property and intends to invest · KNOWLEDGE AND UNDERSTANDING, or the help of an external partner with the preparation of investments · SYSTEM / SW TOOL for data collection and evaluation Today, energy is one of the most changing areas in our society. The fundamental changes are taking place due to the increasing pressure of the European Union on the effi cient use of energy in all Member States, and thus also in the Czech Republic, and due to dynamic changes in the energy market.

As a result, the legislation is undergoing signifi cant changes. Act No. 458/2000 Coll. was amended. Energy Act, Act No. 406/2000 Coll. on energy management, Act No. 201/2012 Coll. on air protection, some of their implementing regulations and ČSN or TNI standards. Further changes to these and other laws or decrees are being prepared.

The energy market provides certain rights to customers, but at the same time requires them to fulfil their obligations. The rights lie mainly in the possibility of choosing an energy supplier. The obligations consist mainly in the need to secure the purchase of energy. The expected benefit for the customer is a reduction in the price of energy due to the competitive environment and a wider range of additional services.

Transformer station - illustration of transparent passport where you see everything you need

It follows from the above that for a quality energy management, whether in the fi eld of production or non-production, precise knowledge of the energy market, price products of energy suppliers and legislation is required. The resulting energy costs of the customer largely depend on the way in which the knowledge is used.

Due to the ever-increasing energy prices, the variety of products off ered by suppliers and sometimes rapidly changing legislation, the requirement for a professional approach to the management of the organization‘s energy management is constantly increasing.

In the context of these changes, the organization‘s energy management is a highly specialized function that requires a so-called full-time professional. However, this is associated with high wage expenditures. Resolving a situation with a city worker with cumulative functions is not optimal, as it may mean a lower degree of orientation in energy issues and, as a result, higher energy costs for the organization than necessary. The way to reduce them may not always be associated with investment costs, but sometimes a simple change of contractual data with the supplier of the relevant energy or a change in the price product is suffi cient.

The recommended solution for organizations is to ensure the performance of the energy function in the form of an external service, or an energy manager shared by several municipalities. There are several advantages to this collaboration.

The most important are:

· PERFORMANCE COSTS - energy management using external / shared energy services is lower than the salary with the related costs of the own employee, · PROFESSIONAL APPROACH, expertise, and experience in the field of energy,

· THE USE OF COMPUTER TECHNOLOGY FOR THE TRANS-

FER OF DATA from billing meters and software for the processing of data and overviews of energy consumption without the need for high acquisition costs and regular software updates, which is thus provided as part of external energy services, · USE OF PRACTICAL EXPERIENCE in the field of energy management.

Continuous improvement

Modelling passport

Management system review Energy policy

Planning

Implementation and operation

Internal audit Inspection and corrective actions

Corrective and prevention actions Static passport

Dynamic passport

Monitoring and measurement

: Amendment to the Energy Act –

Energy audits

The aim of the amendment to the Energy Act 406/2000 Coll. The Energy Management Act (energy law), eff ective from 25th January 2020 (there are no implementing legal regulations / decrees), is the search for energy savings and reducing the carbon footprint either by reducing consumption or by increasing the share of RES.

§ 9 - Energy audit (EA) determines, inter alia, the obligation to process for (§9 para. 3): the Czech Republic, region, municipality, contributory organization of the state, region or municipality, state organization established by law24), state and public university and the Czech National Bank is obliged to ensure that an energy audit is carried out for the energy management of their properties if the value of the average annual energy consumption of the energy management for the last 2 consecutive calendar years is higher than 500 MWh.

This audit must be performed (§9 par. 8 b) within 1 year from the occurrence of the obligation based on energy management data for the 2 years preceding the occurrence of the obligation and must be performed in accordance with legal regulations. In the case of a value of 35000 MWh and higher, they will perform an energy audit within 3 years from the occurrence of the obligation.

Energy management is applied to a building or an operation if their energy consumption can be determined based on measurable input and output. (this will probably include buildings, processes, and transport). Again, it will only be specifi ed in a new decree.

The new EA should be „a systematic monitoring and analysis of energy consumption in order to gain suffi cient knowledge

of existing energy management in the energy sector, which identifi es and quantifi es cost-eff ective energy saving options and reports fi ndings“

The EA is valid for 10 years, or if there is a change of more than 25% in energy management per year for 2 consecutive years compared to the current EA. For large entrepreneurs, the validity is 4 years, changes in the meantime are not addressed. If an existing EA ceases to be valid due to a change in consumption, a new EA must be purchased within 1 year.

It is possible to replace EA by introducing a certifi ed ISO 50001 system for the entire energy management of the entity. The energy manager is in charge of supplying the various buildings with the necessary energy supplies - electricity, gas, water and steam. He/she regularly monitors the costs of individual energy consumption and creates possible measures that would lead to its reduction.

Typical activities and workload of energy manager

Role of energy manager

· knows the environment and all facilities in the area, is aware of the entire energy management of the municipality based on the passport (see below) · pays attention to the economical use of energy in buildings, regularly monitors the cost of individual energy · monitors individual energy facilities and plans, manages, or ensures their maintenance, · monitors significant energy use and consumption and thus predicts future developments in energy consumption and costs, monitors and evaluates data on electricity, gas, heat, and water consumption at least monthly and the energy costs · optimizes distribution rates and circuit breaker sizes with respect to savings or for new development · creates possible measures that would lead to a reduction in energy consumption and evaluates the effectiveness of implemented energy saving measures · works with the energy performance of buildings and monitors and evaluates the heating efficiency of buildings · Evaluates the use of thermal energy using the day-class method · Monitors and evaluates CO2 production · Uses energy performance indicators of buildings - EnPI · Monitors and ensures compliance with legislative requirements in relation to energy (EU energy label, EA, inspections and controls of boilers, air conditioning…) · ensures that the energy supply is of good quality

Prerequisites for the position of energy manager

· analytical thinking · diligence · creative approach · communication skills · conceptual approach · organizational skills · ability to innovate

: Passport: the gateway to online administration

The basic working tool of every energy professional is a passport. The concept is not unknown, but it is seldom actually done as it should. The passport process or the process of collecting information and creating passports is one of the basic activities in asset management. This important tool for asset management records the construction, technical, technological, and dynamic condition of the equipment, serves as a basis for planning other processes, extending the lifetime of infrastructure and equipment, etc.

The passport shows that each part of each infrastructure is very closely linked to another. It is thus possible to gradually create, record, modify and model various investments in energy and manage the maximum online. Each passport should have two levels, technical (detailed) and management (overview).

Static passport

It is a basic record and description of equipment, buildings, infrastructure, and other related objects, including all details. The description needs to be in both documentation and visual form, and in a logical sequence. The passport is performed in two categories (technical and management).

Dynamic passport

This is data collection, which takes place mostly based on electronic measurement systems (remote readings, so called net metering). Information can be transmitted in both numerical and image formats. Individual data are imported in the necessary (required) time intervals and are subsequently evaluated at the centre.

Showcase of photo part of static passport

Input 1 (HV switchboard distributor)

LV switchboard Input 2 (HV switchboard investor)

remote readings (netmetering) Input 3 (630 kVA oil transformer, manufacturer yyyyyy)

Monitoring of a quarter-hour maximum

: Model based passport (digital twin)

This passport is a top superstructure, which based on well-processed passports allows to create dynamic models of the system, predict future states, and use artifi cial intelligence in a cloud environment with high computing power to work on big data. This will give us a digital twin that is used to test the possibilities of implementing various technologies and devices. The digital twin will allow you to make decisions, invest, supplement, and change the infrastructure based on real requirements and needs. It will enable long-term strategic management of digital, technical, technological, and work operations - processes of system management, system of data collection, transmission and storage and ensuring their structure and security. It is a suitable preparation for the publication of open data to support the data economy and innovation, especially for small and medium-sized enterprises.

: Passport example (numerical and photo)

Transformer station

· Location (GPS coordinates, cadastre / ownership, etc.) · Parent distributor (This is the infrastructure that powers the device) · Measurement on the LV - HV side · Installed power input 500 kW · Annual reserved capacity 300 kW · Monthly reserved capacity 100 kW · Energy Supplier (XXXX) Start - End of the contract · Transformer station type

Stříbro: Static passport of the concrete plant and its energy environment as a basis for the LDA design

Hluboká: Example of the LDA desing of the municipality of Hluboká, interconnection of municipal and private energy sources in the area