Successful cooperation projects

Existing fossil-fired power plants can be retrofitted to become more environmentally friendly and flexible. These upgrades enable the storage and use of heat generated from renewable electricity. The system's performance is tested and analysed using various modelling approaches. The solution is evaluated in terms of energy efficiency, economic feasibility, and environmental impact. The €4 million project brings together leading European technical universities and energy industry stakeholders. The applicability of the developed solution is assessed within the project, with Eesti Energia contributing by providing a reference plant and analysing the practical implementation potential of the technology.

The project has received funding from the European Union 's Research Fund for Coal and Steel (RFCS) under Grant Agreement 101216794.

The project website is under development, more information available HERE.

This pilot project addresses current challenges and opportunities in the energy sector—specifically, electrification and the use of renewable energy. To achieve carbon-neutral living, Estonia needs significantly more renewable energy. However, the production of wind and solar energy is an uncontrollable process, dependent on weather conditions in the production area. Consequently, there is a growing need for balancing controllable production or large-scale storage capacity in local markets.

Enefit Green is developing a unique solution in Estonia's Lüganuse municipality, creating a wind and solar hybrid park. A 21 MW wind farm and a 32 MW solar park will be constructed simultaneously, utilizing the same equipment, substation, and connection for electricity transmission to consumers. Additionally, the hybrid park will use a single grid connection capacity for both wind and solar-generated electricity. This approach is efficient because wind generates the most electricity from autumn to spring, while solar power peaks from spring to autumn. Consequently, the combined output of the two plants will be more consistent throughout the year, optimizing the use of limited grid resources.

As a result of the energy storage pilot project, a 4 MW/8 MWh battery storage system will be established at the Purtse wind and solar hybrid park. This will increase the adoption of electricity produced and stored from renewable sources, thereby enhancing the share of renewable energy in electricity systems while reducing the use of fossil fuels.

The project numbered 20.4.03.23-0060, has received support amounting to 1,000,000 euros. It plays a crucial role in the implementation of the group's strategy, supporting the journey of both Eesti Energia and Enefit Green towards a carbon-neutral economic model.

With the help of EU funds, Enefit Volt is expanding its charging services to other local markets. The company will install 70 chargers with at least 150 kW capacity at 35 locations across 4 countries by the end of 2025, thanks to the CEF (Connecting Europe Facility) support. The chargers will allow drivers to charge their vehicles for up to 100 km in just minutes, depending on the vehicle model.

The chargers will be located along the TEN-T (Trans-European Transport Network) route that connects Tallinn and Krakow in the south of Poland, passing through cities like Riga, Vilnius and Warsaw.

This project is funded by the European Union's CEF Transport Alternative Fuels Infrastructure Facility with a grant of 2,000,000 euros under the agreement No. 101101639 and with a grant of 1,500,000 euros under the agreement No. 101137482.