Axpo and R.Power have signed a long-term agreement to optimise a 300MW/1,200MWh BESS project in Poland. The Dzięgielewo facility will enhance grid flexibility, support renewable energy integration, and strengthen ancillary services in Poland’s evolving power market, while helping improve project bankability through guaranteed minimum revenue mechanisms.
PROJECT SNAPSHOT
Companies: Axpo & R.Power
Project: Dzięgielewo BESS
Capacity: 300 MW / 1,200 MWh
Location: Mazovia, Poland
Agreement Duration: Until 2038
Key Benefit: Grid flexibility & renewable integration
Axpo and R.Power have entered into a long-term agreement to optimize operation of a BESS in Poland, as a record-breaking move for Central and Eastern Europe. The new 300 MW/1,200 MWh facility will be constructed in Dzięgielewo (Mazovia province), will play a critical role in stabilizing the national power grid. This deal stands as the largest single-project optimization contract in the region and ranks among the most significant BESS agreements across the entire continent.
In essence, BESS optimization is the strategic management of a battery asset to ensure it is used at the right time and for the most profitable purpose. This process involves coordinating when the system should charge from the grid or renewables and when it should discharge to sell power back and also holding capacity in reserve to provide essential support services to grid operators. By intelligently navigating market fluctuations, optimization helps turn a passive battery into a high-performance revenue generator. Similar to a renewable energy PPA, Axpo provides a guaranteed minimum revenue, which makes projects more attractive to lenders and protects against market volatility. By handing over commercial and market management to a specialist partner, asset owners can dedicate their resources to the technical development and long-term health of the physical facility.
Building on their January collaboration for a project in Jedwabno, Axpo and R.Power—a prominent European Independent Power Producer—are scaling up their partnership with a second, even larger BESS venture. This latest contract tasks Axpo with the comprehensive optimization of a massive 300 MW / 1,200 MWh facility slated for construction in Dzięgielewo, located in east-central Poland.
This deal currently stands as the most significant single-project BESS optimization contract ever signed in Central and Eastern Europe. Furthermore, it ranks among the premier agreements of its scale across the entire European energy landscape.
The contract will take effect once the facility begins commercial operations and remain in place through 2038. The financial structure features a profit-sharing model with a revenue floor, which provides a guaranteed income stream to de-risk the investment. This security is vital for Dzięgielewo site, which is not only among the largest planned storage projects in Poland but also a cornerstone of R.Power’s massive 1.7 GW / 6.3 GWh national development pipeline.
The project's substantial size and storage capacity are set to bolster Poland's grid flexibility, facilitate the inclusion of more renewable energy and offer critical support services in balancing the market. It may improve power system's ability to adjust to sudden changes in supply and demand. It also may capture and store power from growing wind and solar sources to prevent waste and may Offer "ancillary services," such as frequency regulation, to keep the national electricity network stable.
Axpo Polska is strengthening its position in Poland’s large-scale energy storage market through 300 MW project partnership with R.Power. It is aimed at maximizing asset value through tailored commercial models and market participation. The collaboration supported by existing trust and previous agreements involves scaling solutions to meet evolving regulatory standards.
By securing Dzięgielewo project, strengthens Axpo’s position as a technology and trading partner for large-scale energy storage in Poland. Drawing on years of experience in developing and optimizing utility-scale systems throughout Europe, the company brings deep expertise to the table. In the Polish market, where it has been active for 25 years, Axpo has become a top independent energy dealer and a major purchaser of green power. Today, it oversees a 16 TWh renewable portfolio and continues to expand its footprint in solar, battery storage and biogas development.