Covenergo, Delta Capacity Partner on 300 MWh BESS Project in Finland
Covenergo and Delta Capacity have partnered to develop the 125 MW/300 MWh AKKU One BESS project in Lapinlahti, Finland, with commissioning targeted for Q4 2027.
September 19, 2026. By Mrinmoy Dey
AKKU One was acquired as a ready-to-build (RTB) asset from Helios Nordic Energy. Covenergo, as majority owner, brings extensive experience in renewable energy development, project finance and long-term asset value creation across its European portfolio. Delta Capacity contributes its Nordic execution and battery storage expertise, taking responsibility for securing offtake, construction and long-term asset management as EPCM contractor, in close cooperation with Covenergo’s team.
The project marks Delta Capacity’s second battery storage project in Finland, building on the company’s expanding presence across the Nordic region following the completion of the 70 MW/160 MWh Ånge BESS in Sweden earlier this year.
Commenting on the development, František Kalivoda, CEO of Covenergo, said, “This partnership and acquisition is an important step forward for Covenergo's flexible asset portfolio and reinforces our growing footprint in the Nordic energy market. We remain fully committed to delivering high-quality, investment-ready projects that support Europe's energy transition.”
Patrik Hes, CEO of Delta Capacity, said, “AKKU One once again reaffirms our belief in the Nordic market and our expertise in delivering high-quality battery storage projects — including as a trusted partner for developers like Covenergo.”
Sungrow will supply the project’s battery system, following the 1 GWh framework agreement signed with Delta Capacity earlier this year.
Rejlers, a Nordic engineering consultancy, is providing technical project support throughout construction. NYAB is delivering Balance of Plant works, Ampner is carrying out grid connection studies and compliance verification, and GreenPowerMonitor, a DNV company, will provide the energy management and SCADA systems for real-time monitoring and control once AKKU One is operational.
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