“The importance of the participation of electricity storage plants in the balancing system”
(Article drafted by Panagiota Maragkozoglou, Associate, and Andriani Kantilieraki, Senior Associate for Lexology on May 1, 2025)
Greece is rapidly expanding its renewable energy (RES) sector and sees electricity storage as essential to effectively integrate RES into the national energy system. While legislation (notably Law 4951/2022) has been enacted to support both standalone and RES-integrated storage projects, and competitive procedures for state aid have begun, actual operation of storage units remains limited to hydro-pump facilities. Efforts are underway to enable storage systems to participate in Greece’s electricity markets, particularly the Balancing Market. Key market operators—IPTO, HEE, and RAAEY—are collaborating to adjust regulatory codes and frameworks, with IPTO launching guidelines covering participation criteria, planning, system charges, and congestion management. Regulatory approval procedures, including public consultations, are ongoing to finalize these reforms and enable full integration of storage into the market.
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