Greece is preparing a €200 million battery-storage support programme as the country seeks to accelerate the deployment of standalone batteries and renewable-linked storage. The programme is expected to be implemented through four funding rounds before the end of 2026, with each call allocated around €50 million.
Half of the overall funding will be directed towards storage for self-consumption, while €50 million each will be allocated to standalone battery projects and storage systems linked to renewable generation. The programme is designed to strengthen Greece’s energy-storage capacity as renewable generation continues to expand across the country.
A key eligibility issue concerns solar-plus-storage systems. The Energy Ministry plans to support batteries that are charged directly from their associated solar installations rather than from the wider electricity grid. Under the proposed framework, Category 11A behind-the-meter batteries supplied exclusively by connected solar generation would qualify, along with Category 11C systems shared by cooperating solar installations. Category 11B systems capable of charging from the grid would be excluded.
The €50 million allocation for qualifying solar-linked batteries is expected to be distributed through a competitive auction, with projects requesting lower levels of public support receiving an advantage in the selection process. This approach is intended to allocate funding efficiently while encouraging developers to reduce the subsidy required for their projects.
Competition for the standalone-storage allocation could be considerably stronger. Authorities are considering allowing all projects covered by Greece’s priority grid-connection procedure to participate, potentially opening the auction to a development pipeline of up to 4.7 GW.
The remaining two funding rounds will focus on batteries supporting self-consumption by companies and municipalities. Municipal storage is also linked to Greece’s Apollo programme, which seeks to reduce electricity costs for vulnerable consumers and public-sector facilities through the use of renewable energy.
Batteries could play an important role in the programme by allowing municipalities to consume more locally generated renewable electricity rather than exporting excess power when production exceeds immediate demand. This would increase the ability of public facilities to make use of renewable generation at different times of the day.
The new support programme comes as energy storage is becoming increasingly important to Greece’s renewable-energy investment strategy. The country’s rapidly expanding solar capacity is contributing to periods of low electricity prices during daylight hours, followed by sharper evening demand and price increases. This growing gap is strengthening both the grid-support role and the commercial value of battery storage.
