Paris, 31 October 2025 - The Baltic Storage Platform (BSP) joint venture - bringing together French independent solar power producer Corsica Sole, Mirova, an affiliate of Natixis Investment Managers dedicated to sustainable investment, and Estonia’s leading renewable energy developer Evecon - has successfully secured €85.6 million in financing from the European Bank for Reconstruction and Development (EBRD), Edmond de Rothschild Asset Management, and the Nordic Investment Bank (NIB) for its two battery energy storage projects, Hertz 1 and Hertz 2, located in Estonia.

The two projects are located in Kiisa and Aruküla, both approximately 25 km from Tallinn. With a combined capacity of 200 MW of power and 400 MWh of storage capacity, Hertz 1 and Hertz 2 will form one of the largest battery plants in continental Europe. Both projects are currently under construction and will be fully operational by the end of 2025 and 2026 respectively. These assets will play a critical role in stabilizing the Baltic power system following recent synchronization with the European grid, and in accelerating the phasing-out of fossil fuels.

This groundbreaking transaction represents the first project financing in the Baltic countries that is exclusively structured around the revenues generated by storage assets in the energy arbitrage and ancillary services markets. The private sector’s direct investment in a strategic energy infrastructure offers a concrete response to the Baltic region’s security-of-supply and energy independence challenges.

Astris Finance acted as exclusive financial advisor to Mirova, Corsica Sole and Evecon. This closing is a testimony to our ability to assemble the best mix of funding sources for complex, innovative transactions, and builds on our strong track record in the battery storage sector in Europe.