The Greek BESS Opportunity: One Market Won''t Do
While the balancing markets (like aFRR & mFRR) will be a very interesting source of revenues, a big part of BESS will also count on
Over the past five years, Greece has been steadily refining its energy storage policies, recognising BESS as a critical solution to increasing grid imbalances between supply and demand.
In 2025, Greece has accelerated its plans for utility-scale Battery Energy Storage Systems (BESS), signalling a shift in policy, financing, and market expectations. However, while the scale of ambition is high, there are several tensions emerging—especially around the move toward unsponsored (merchant) projects.
Moving forward, Greece is abandoning subsidizing BESS via auctions. Instead, the country has recently launched a new program for 4.7 GW of unsibsidized BESS which will be offered priority grid connections on a merchant basis without subsidy support.
Greece's latest auction has awarded subsidies to 188.9 MW of standalone, front-of-the-meter, utility-scale battery energy storage. The auction was the third and final edition of a battery storage subsidy program launched in 2023, with the country now turning its focus towards a new 4.7 GW unsibsidized BESS scheme.
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