2. Central and Eastern Europe

1.1. Bulgaria

Beneficiaries: 4


Intended investments in Belene are already outlined in their municipal program for energy efficiency (2018 – 2025). The focus here is on Clean Hydrogen. There will be a total of seven municipal buildings for piloting this large-scale project. The details of the plan are as follows:

1.    Construction and putting into the exploitation of 6MW solar park to power hydrogen production;

2.    Construction and putting into exploitation of 4MW alkaline electrolyser hydrogen production facility

3.    Renovation of existing pipeline network (5 km) connecting the electrolyser with public buildings in the central area of the city to provide for direct 100% hydrogen gasification for heating

4.    Purchase and adaptation of new boilers for the heating systems of public buildings to be able to work on 100% hydrogen.


In Burgas, there are three sets of measures: those that are planned on public buildings, on multifamily residential buildings, and those in the field of public street lighting. Activities on public buildings will include the replacement of heating and cooling systems, insulation of roofs and walls, the replacement of doors and windows, and the installation of PV and solar panels. A total of 41 buildings, currently classed as C, will be refurbished to become classified as type A.

On the 82 multifamily residential buildings (class E and D), planned measures aim towards achieving the status of energy class B and include the insulation of roofs and walls and the replacement of doors and windows. In addition, there will be an installation of solar panels.

For the Public Street Lightning, 4641 street lights across seven residential areas will be replaced and connected to the public lightning management system.


Implementation of integrated package of energy efficiency measures in municipal buildings and multifamily residential buildings including thermal insulation of walls, replacement of windows, changing the lights with LED, PV installations for hot water and roof photovoltaic systems for electricity production.


The Investment Concept in Gabrovo will look at enhancing a four-component investment project. On one hand, there is the aim to build integrated RE solar PV systems involving solar PV panels, solar mounting structure and others.

There is also a plan to build a waste-to-energy CHP system to utilize the residue from the wastewater treatment plant and landfills, including having a reactor, gasifier, and other units. In third place, there will be a renovation of the envelope of 60 residential buildings with the thermal insulation of walls, floors, and ceilings.

Lastly, it is foreseen to renovate approximately 20,000 m2 of public buildings stock to energy class A. Measures such as the improvement of heating systems, the installation of building management systems, and the improvement of the building envelope, together with building lighting systems are all on the table.

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1.2. Romania

Beneficiaries: 0

1.3. Hungary

Beneficiaries: 9

Borsod County

The goal of the project is to spread innovative solar distribution systems for outdated panel houses’ condominiums in residential condominium buildings. Concretely, there is an intention to launch an umbrella project for four cities in Borsod - Abaúj - Zemplén County. The concept of the project contains the setting up local “Energy Agencies” in each city involved. It will provide a grant to approximately 16 000 local flats arranged into condominiums to implement PV panel and solar energy distribution systems. This will provide the residents with the possibility to diminish their energy cost with an appropriate return while decreasing CO2 emissions and the carbon dependency of the settlements.

These local energy agencies will operate grants to condominiums /flat cooperatives for their investment into solar distribution systems with legal, technical and financial counselling included.


The planned Positive Energy District will include the following elements, to be examined and prepared in the frame of the investment concept:

1.    Solar panels will be installed on buildings’ flat roofs and S-SW facing pitched roofs, over tennis courts, the bus station and the parking lots of major commercial units.

2.    Heating and cooling systems of buildings (except for  those supplied by district heating) will be renewed primarily through applying heat pumps and ground-source heat pumps, as well as smart heating solutions for 1,050 residential flats, using sensors and smart meters.

Power generated by the solar panels will mainly be utilised by the buildings themselves, while excess power will be taken up by e-vehicles through 2 charging stations installed and by Decathlon’s electric car fleet. The investment plot will be part of the to-be-set-up e-bike sharing system, 3 charging stations and three smart solar benches will be installed.

Bükk region

Planned measures for this project consist of, in 1st place, the mapping of the existing public building stock with regard to energy flows, RES capacities and the opportunities to accommodate decentralized energy storage. This will be followed  by developing a technically sound investment concept, that is acceptable by the local municipalities and is in line with the other policies at regional and national levels.

This investment concept will be then developed into a concept that can be submitted to the ELENA facility for further funding. The application to be developed will include three main pillars: (i) incorporation of already existing RES capacities into a common EMS via retrofit of SCADA controllers; (ii) installation of new RES capacities; (iii) installation of decentralized battery storage providing for self-consumption and selling electricity on the market; (iv) local electric transportation.


The intended measures include a two-circles 350 MW geothermal power plant with a heat exchanger and a power generating steam turbine, 13 production and 9 re-injection thermal wells. The 4.7-kilometer-long district heating line will be renewed. Expanding the district heating system, aims to supply several public and residential buildings.


The investment concept targets four investment objectives, including 10 investment components (ICO), which are a complex renewable energy investment program (renewable energy production of 102,8 GWh/year) based on geothermal energy and district heating. Targeted sectors include  Public buildings, Building integrated renewables, Residential buildings, District heating and Innovative energy infrastructure.


The aim is to stablish a large-scale geothermal district heating system. The investment concept includes assessment of geological and technological (in particular drilling) risks and their mitigation solutions in order to establish a realistic default rate. The targeted sector is that of  District Heating.

Municipality of 3rd District, Budapest

The intended technology measures to be financed to cover a complex range of investments. The modernisation of multi-storey residential buildings in Óbuda and Újpest housing estates covers renovation (thermal insulation, replacement of windows and doors), and provision of geothermal energy for heating and solar panels on the roofs and facades providing electricity.

With 30 residential buildings in Óbuda, 59 residential and 39 public buildings in Újpest, savings amount to a total of 75 GWh/year. In Szentendre, four investments are planned: the creation of a solar park and three measures for the modernisation of the district’s heating system, contributing to a further 2.5 GWh yearly saving. Three further innovative energy infrastructures (a 1 GWh/year capacity per solar park) are planned to be built by Budapest Waterworks and Sewerage Works to provide the energy for its plant. Moreover, further investment possibilities, such as the use of water energy for producing electricity, will be assessed.

Municipality of 18th District, Budapest

The concept will explore four investment modules and their combinations, following the trias energetica model. First, functional repurposing, and envelope refurbishment using green constructions will target demand reduction both in transportation and building energy. This includes creating dwelling offices, shared work- and leisure spaces, envelope measures and green roofs. Second, smart micro grid, neighbourhood virtual storage and digital twinning will be explored to improve energy efficiency. Specifically, this means laying a 5th generation district heating/cooling network for distribution, and neighbourhood-scale BMS for coordinating control. Third, bio solar roofs and heat pumps will be designed to meet the remaining demand. Finally, a local energy community will be facilitated to ensure sustainable building use and the involvement of vulnerable inhabitants, amongst others.


The intended technology measures are: energy efficient renovation of public buildings with building integrated renewable energy generation, energy efficient renovation of residential buildings with building integrated renewable energy generation or/and green energy purchase option for the inhabitants, energy efficient transformation of the industrial and service sector, off-site renewable energy generation with PV power plants, sustainable urban mobility and smart energy projects (intelligent traffic control system, intelligent public lighting system, smart grids).

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1.4. Croatia

Beneficiaries: 8

Cres-Krk-Losinj ( Islands in Kvarner region)

To become model islands for climate-neutral mobility, it is planned to establish a groundbreaking decarbonized system powered by RES, primarily PVs (integrated and non-integrated). By establishing a two-way flow of energy and data, electrical vehicles (EVs) will support the operation of a Smart grid with a high share of RES in real-time, resulting in a synergy between the transport and energy systems. With the gradual introduction of EVs, the development of a dense public and private charging network, new mobility services such as a multimodal vehicle sharing system, and energy-efficient public transport will help reduce energy consumption and emissions, optimise traffic and alleviate congestion. Their active participation in the energy transition will be encouraged by establishing domestic microgrids, with integrated PVs, EVs, and energy storage systems. The beneficiaries will be, the towns of Krk, Mali Losinj, and Cres; on the island of Krk, the Municipality of Malinska-Dubasnica and the towns of Baska; Dobrinj; Omišalj; Punat and Vrbnik.


Geothermal energy utilization in the city of Karlovac, including borehole drilling, heat storage tank construction, transceiver station construction, accession pipeline construction, pump room/station construction, improving eco package of the current boiler (58MW), construction of a solar power plant, refurbishment of the existing district heating system and plant operation and maintenance.


The investment concept will be developed around the following measures (non-exhaustive list) in the different municipalities on the Croatian island of Korčula:

1. Replacement of existing lighting fixtures with more energy efficient light bulbs, 2. Installation of solar thermal collectors 3. Reconstruction of the boiler room and transition to bio-mass or switch to high-efficiency heat pumps, 4. Replacement of exterior carpentry of the building 5. Reactive power compensators 6. Introduction of photovoltaic systems on households roofs 7. Installation of a photovoltaic power plant of at least 50 kW.
In addition, there will be mobility measures such as building new bike paths and promoting cycling; the introduction of 10% biofuels in transport, car-sharing between city residents, and the electrification of public and maritime transport. The grouping applied consists of the following cities and municipalities: the City of Korčula, Municipalities of Vela Luka, Blato, Smokvica and Lumbarda.


As there is no public transport in the area, the city is working hard to develop its transport in a sustainable and environmentally friendly manner. They began working their Sustainable Mobility Plan which includes a study on public transport demand, a proposal for optimal transportation paths, and EV and H2 charging station forecasting. The first phase of the project includes the installation of a 7 MW solar power plant (via crowdfunding) and the EV and H2 charging stations. These charging stations will primarily be used to charge vehicles for the future public transport system. As the solar power plant will be located in a large area near a highway and an international railroad (connecting the Adriatic coast and Eastern Europe), a multimodal passenger and freight terminal will be built there (phase two). It will include a variety of creative digital technologies as well as car and bike-sharing services to minimise traffic congestion, air pollution, and fossil fuel demand in the city centre.

Poreč - Parenzo ( Midwest Istria subregion)

The EUCF grant will allow the development of an Investment concept to prepare the project on the transport sector decarbonisation of the Midwest Istria subregion, in order to achieve its 2030 decarbonisation goals of the transport sector.

The project will map public buildings and abandoned landfills and analyse their PV/hydrogen potential; map and analyse existing solutions and assess the development potential of future Poreč - Pazin mobility solutions (public transport development, micromobility concept, sharing systems, private investments). It will also develop an innovative investment concept for public and private investment/public-private partnerships. The approach will foster an open, transparent relation with stakeholders and the public.


The investment concept includes various technological solutions for environmental protection, energy and mobility such as production of biogas from municipal bio-waste, design and construction of plant with UHTH technology for production of synthetic gas from the waste material, public lighting, electrical mobility and on-site production of hydrogen from excess renewable electricity sources (“green hydrogen”).

Slavonski Brod

The main measure is integrating low-temperature district heating (DH) system (4th Generation) in the city. The measure will contribute significantly to the efficient use of energy resources and better integration of renewable energy and surplus heat into the existing district heating system.

It includes the modernisation and optimisation of the existing system. There is also the introduction of renewable energy sources (geothermal heat plant, large-scale heat pumps, solar thermal) and surplus heat (industrial waste heat). ICT will be used for optimum integration of energy sources, a high-efficiency operation of the system and communication with the consumers. A new decarbonised and optimised DH system will be integrated with other parts of the energy systems and will use heat from different sources and combine them into a smart thermal grid.

Velika Gorica

The technology measures include a deep renovation of almost 1000 houses and three public buildings in order to reach nZEB or positive energy building standard, containing buildings envelope, new doors, windows and in-house heating and cooling installations. A 1.8 MW PV installation, a new district heating system with a 4 MW heating plant along with 1.5 km heating interconnection with an industrial facility and a 5.5 MW biomass heating plant are planned. Moreover, installation of district heating pipes and substations is considered. All public lighting will be changed to new LED.

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1.8. Poland

Beneficiaires: 11


Within the project, it is considered to build the new council office in Dobczyce, accessible and energetically positive and moving to it the head council office from the old building. The plan is also to modernise street lights aimed at energy savings and to establish a building renewable energy development centre. There will be the installing of new renewable energy sources in residential buildings:
photovoltaics, heating pumps and solar panels. The installation of new renewable energy sources in public buildings will be the following: photovoltaics (2 MW), a new photovoltaic power station (2 MW) and the creation of an energy community based on installed renewable energy sources, including software for energy balancing. Metering will also be built, resulting from the conditions of cooperation with the energy system operator.

Gmina Miejska Rumia

Rumia plans to fully comply with the assumptions of the European Green Deal and achieve climate neutrality by 2050. Work is currently underway to prepare and adopt a roadmap for carbon neutrality (with a 2050 timeline). Taking into account the current situation, especially in terms of energy, two phases of the process are planned: 2021-2030 and 2030-2050, that encompass both private and public sectors. In the first phase, investments will be made primarily on public and private resources, which, after preparatory and analytical work, will mainly require appropriate financial outlays as well as the involvement and consent of individual stakeholder groups.

In the second phase, it’s necessary to develop and implement new solutions based on renewable energy sources, local low-temperature heating networks and the concept of distributed and community energy.

Gorzów Wielkopolski

The plan is to establish a system for monitoring media consumption for the collection of invoice data. The successive expansion of this system with modules for analysis and reporting of consumption and media costs in city-owned facilities will be the result. The monitoring system will be about:

  • Energy measurements and audits in thermal modernization
  • Calculations and measurements to select the most effective solutions for replacing the heat substation
  • Energy measurements and audits in public transport
  • Measurements and calculations of energy savings in the case of using LED lighting and
  • Technological analyses concerning the use of an energy transformer in tram transport

City of Łódź

In Łódź, in 2017, the housing sector had the largest share in the total CO2 emissions (46%). For this project, a hundred municipal buildings in the historic centre of Łódź are chosen for the project. More than half of these buildings are tenement houses from the 19th century that have entered the municipal register of monuments. They are currently inhabited by about 2,600 people. At least 80% of flats have an active coal furnace. Overall, these buildings have a specific architecture, so standard solutions will not be possible to implement.

The assumed activities are the following: 1. Complex thermo-modernization of buildings,  renovation of buildings allowing for safe decarbonisation, and the replacing of coal stoves with more ecological methods of heating.

Urząd Miejski Wrocławia

Wrocław has the largest system of waterways in Poland. The assumption of the project is to reduce the share of cars (individual transport) in the overall transport in the Wroc Agglomeration area, in favour of environmentally friendly water transport. At the present stage, the communes of Wroc Agglomeration are making plans for the water tram routes to be served by vessels powered by alternative fuels, with electric propulsion, e.g. solar energy or using other innovative and pro-ecological solutions contributing to energy savings and reduction of CO2 emissions. The development of zero-emission transport is particularly important from the point of view of environmental protection, rationalization of the demand for parking spaces, the accessibility of collective transport for residents, and the reduction of traffic flow, including from suburban areas.


Construction of an energy complex in Piaseczno including  the construction of an ecological heat and power plant and expansion of the heating network with the connection of new customers. In the planned combined heat and power plant, heat and electricity will be produced from several sources: a heat pump collecting heat from treated sewage, co-generation based on biogas obtained from a biogas plant for biodegradable waste and sewage sludge, and a biomass boiler.


In Piastow, the investment concept will cover

  • Photovoltaic installations
  • Electric cars and other means of transport (electro mobility)
  • Energy storage system
  • Efficient lighting system based on LED lamps
  • Energy efficiency improvements to the building envelope and building systems
  • Smart energy metering


The project includes an investment component (by sector). In the residential buildings sector, it is foreseen to construct renewable energy installations for residents, such as photovoltaic panels, heat pumps and biomass stoves. In the sector of Public buildings, the project looks at the thermal modernisation of public buildings. As to sustainable urban mobility, there will be the development of electro- mobility (charging stations, charging points, RES installations for stations, smart city solutions and the purchase of buses. As to Innovative energy infrastructure, there would be the construction of a biogas plant, solar farms and energy storage.


The included measures are: sewage treatment plant-RES powered, new energy sources (wind, solar) ensuring coverage of energy needs for transport, water supply and sewage networks (minimum of 1.83 GWh/y), energy storage battery (>1MWh), use of water & sewage networks as an energy storage, thermal modernization of buildings, coal to heat pumps and old cars to e-vehicles.


The development of the concept aims to attract investors for the investment (191 million €), a much higher sum than the city’s annual investment budget (39 million €). Apart from CO2 reduction and sustainable energy development, the project will improve the life quality of 108 561 residents, also by smog reduction (PM 2.5 dust emission - 50th place in the EU according to IQ Air, 12th place in Poland among 66 cities with the worst air quality), city functionality and will relieve the budget, enabling further act. Some measures envisaged are:

  • Construction of photovoltaic installations on public buildings and PV farms
  • System of intelligent metering, monitoring and energy management
  • Decarbonisation of the municipal heating system (covering 70% of the city’s residents
  • Modernisation of street lighting
  • Construction: power grid, wind farms, hydroelectric power plant and
  • Expansion of a biogas-based cogeneration system


The following technologies are planned to be used in investment activities:

  • Photovoltaic installations and Wind turbines
  • Co-generation (CHP systems)
  • Electric and hydrogen cars
  • Energy storage system
  • Efficient lighting system based on LED lamps 
  • Energy efficiency improvements to the building envelope and building systems and Smart energy metering.

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1.7. Czechia

Beneficiaires: 1


The project in Kladno is focused on smart and deep renovation of buildings. This will include setting up smart metering (sensors, smart meters, etc.), the creation of a photovoltaics network, and the modernization of the district heating network (including renewable sources, decentralization, etc.). The main sectors targeted is that of Public Buildings.

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1.9. Lithuania

Beneficiaries: 1


The intended technology measures are:

  • CHP, which uses woodchips material.: installation of CHP, connection to heat and electricity networks.
  • Modernization of street lightning: replacements - existing sodium lamps to LEDs, old lighting bearers; reconstruction
  • Street lighting network; modernization - control station; installation of intelligent street lighting system control equipment.
  • Solar power plant: installation of solar cell systems, connection of solar power plant to the electricity network of national grid.
  • Storage power plant to provide grid energy storage. The SPP operates in conjunction with all LT green electricity energy producers. As the time of energy production and consumption may differ, the storage will allow matching it. That can lead to s reduced price of the electricity.

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1.5. Slovenia

Beneficiaries: 1


In Velenje, there will be the renovation and optimisation of District Heating network (pipelines) and upgrading it to a smart distribution system. There will also be the replacement of coal-based heat generation with an alternative energy source. The project envisages the installation of either one or a combination of Solar Thermal, Solar PV, Biomass or geothermal energy sources. It also envisages the installation of  high-voltage (HV) -electrode boilers and a heat storage tank.
The study should address the gradual transition and connectivity of dispersed energy sources, all of which lead to a common goal of 100% replacement of existing coal resources. The feasibility study should be based on existing documents and be carried out in the phase of preparation of basic investment documentation together with the certification of technologies for heat production from RES and economic justification according to the technological needs of the system.

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1.6. Slovakia

Beneficiaries: 0

1.10. Latvia

Beneficiaries: 0

1.11. Estonia

Beneficiaries: 0