Estonian renewable energy company Evecon and French company Corsica Sole are set to build two battery energy storage systems in Harju County, Estonia, by 2025. The battery parks will be located in Kiisa and Arukylä, respectively, and Elering’s emergency power plant is also situated in Kiisa. By 2025, Estonia, Latvia, and Lithuania will decouple from the Russian electricity grid, linking the Baltic networks to the continental European grid. The battery farms will ensure an adequate emergency reserve and can be converted into a storage facility for renewable energy.
Elering is building connections for future battery farms, with the first park in Kiisa in spring 2023 and the second in Arukyla in the fourth quarter of 2024. The batteries will be supplied by Corsica Sole by the end of 2024. The battery park, called the Baltic Storage Platform, will have a 20% stake in Evecon and an 80% stake in Corsica Sole.
Climate Minister Kristen Michal (Reform) welcomed the emergence of reserve and storage capacities in Estonia, stating that it is a welcome development by private companies. Evecon plans to build 20 wind farms with a total capacity of 1,200 megawatts by the end of 2026 and 78 solar plants with a total capacity of 1,465 megawatts by the end of 2024.
Corsica Sole, established in 2009 in Corsica, has built Europe’s largest battery system in Belgium in December 2022. The system helps maintain frequency stability in the European electricity network through participation in Frequency Control Reserve (FCR), which will be gradually replaced by automatic frequency restoration reserve (aFRR). Eesti Energia, a large-scale energy storage facility, was unable to secure a contract through an international tender.
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