Greenvolt and Nala Renewables Advance Major BESS Projects in Poland and Finland
The Central and Eastern European battery energy storage market is witnessing significant momentum, highlighted by recent financial and operational milestones in Poland and Finland. Greenvolt Group has successfully secured a EUR 218 million financing package from UniCredit for the Ełk and Turośń BESS projects in Poland. The package includes EUR 153 million in bridge financing and a EUR 65 million guarantee facility.
Poland's Grid Congestion Mitigation
The Greenvolt projects boast a combined capacity of 400 MW/1.6 GWh, with each site offering 200 MW/800 MWh. Turośń Kościelna was inaugurated in July 2026, while Ełk is expected to reach commercial operation in Q4 2026. These developments are critical for Poland, which has experienced record installations of distributed PV and onshore wind. Grid operators are increasingly deploying battery storage to mitigate congestion, particularly at the central Polish grid node facing increased pressure from Baltic coast wind generation.
Poland's renewable expansion drives an urgent demand for BESS to mitigate grid congestion and avoid curtailment during periods of oversupply, making fast-response storage critical ahead of winter peak demand.
Finland's Grid Stability Boost
Meanwhile, in Finland, Nala Renewables has successfully energized a 50 MW/100 MWh battery energy storage system in Kauhava. Delivered in partnership with KSBR, Sungrow Europe, and Ramboll, the 2-hour duration project is designed to provide flexible power capacity and strengthen grid stability. Commercial operations are slated to begin in the coming months following final commissioning and testing.
Additionally, the Płock 10.03 MWh grid-scale standalone battery storage project in Poland recently reached financial close on August 20, 2026. Developed by ELEKTROCIEPŁOWNIA PŁOCK and backed by non-recourse financing from mBank S.A., the facility is scheduled to synchronize with the grid by March 2027, further illustrating the robust pipeline of storage initiatives across the region.
These developments underscore a broader trend across Central and Northern Europe, where grid-scale battery storage is transitioning from a niche technology to a fundamental component of the energy infrastructure. As renewable penetration continues to rise, the ability to store and dispatch power flexibly will be essential for maintaining grid balance, ensuring energy security, and achieving national climate targets.
Source: Enerdata, Solar Quarter, PR Newswire
This article was assisted by AI analysis. Please refer to the original source for official information.