Energy storage in Poland
Energy storage in Poland
Current regulatory developments
Updated September 2026
Strong policy focus on BESS to support Poland's transition from coal to renewables
The Grid Act (UC84), in force from 30 April 2026, is a game-changer for BESS, clearing blocked grid capacity through milestone deadlines, enabling battery-renewable co-location via expanded cable pooling, and introducing flexible connection models, but imposing stricter upfront costs and tighter permitting timelines on storage developers
Capacity Market support continues, but successive reductions to the BESS de-rating factors are reshaping project economics and shifting revenue dependence toward merchant markets
Five things to know about BESS in Poland.
Poland is rapidly emerging as a leading European BESS market and battery manufacturing hub. Driven by the transition away from coal and increasing renewable deployment, battery storage is becoming critical to grid stability and energy security. Poland is also one of Europe's largest battery manufacturing centers.
BESS is winning a growing share of Capacity Market auctions. In the Capacity Market auction for delivery year 2029, BESS secured approximately 2.5 GW of the 8 GW awarded. Storage accounted for around 31% of committed capacity, compared with only 3% in 2022.
A complex permitting and licensing regime applies, now subject to stricter timelines under the Grid Act (UC84). Storage facilities above 10 MW require an electricity storage license, while facilities above 50 kW must be entered in the national storage register. Under the Grid Act, BESS projects must obtain a final building permit covering at least 80% of contractual connection capacity within 24 months of signing a grid connection agreement, or the agreement expires automatically. Mandatory collateral must be provided within 14 days of signing.
Multiple revenue streams support project economics. BESS projects can generate revenues through Capacity Market contracts, day-ahead and intraday power markets, balancing services, ancillary services, aggregation arrangements and optimization agreements.
Grid connection reform has moved from watchpoint to enacted law, but grid constraints remain the primary bottleneck, whether the Grid Act can clear the backlog quickly enough, and the rules for a new competitive grid capacity allocation process (to replace some of the queue-based system) are key watchpoints.
Credentials
DTEK on a major battery energy storage investment in Poland
Hithium Energy Storage on regulatory and investment requirements for the Polish storage market
an investor in relation to development services agreements for BESS project development in Germany and Poland
R.Power Renewables on a storage service agreement with Axpo Polska for the commercial optimization of the 150 MW / 300 MWh Magazyn Energii Jedwabno battery energy storage system (BESS) project. The agreement incorporated a profit-share model alongside a guaranteed revenue floor, providing R.Power with downside protection while enabling upside participation in energy trading revenues. This was a landmark BESS transaction in Poland
“Established in 2019, Eversheds Sutherland Poland‘s government and energy practice focuses strongly on the energy transition in Poland, and projects and financings surrounding this which involve domestic and local companies.” Legal 500 Poland
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