GREECE Trends and Developments Contributed by: Aris Papaspyridis, Virginia Kokios and Konstantinos Kounelis, AP Legal
ΓΔΕ/28255/1143/13.3.2025) introduced a dedicated process for awarding final grid connection offers to standalone BESS projects. The framework allocates 4.7 GW of the total grid capacity to storage projects and defines priority groups, capacity caps, eligibility criteria and ownership caps. Developers must also provide evidence of financial capability and meet strict licensing and environmental criteria to retain grid access rights. In 2025, PPC SA launched the construction of two new storage facilities in Western Macedonia, marking a decisive step in the company’s broader decarboni- sation strategy. • The first project, “Melitis 1”, will have a total installed capacity of 48 MW and an energy storage capacity of 96 MWh. It will be located near PPC SA’s PV installations in Western Macedonia, allow- ing direct integration with renewable generation. • The second project, “Ptolemaida 4”, will have a total installed capacity of 50 MW and an energy storage capacity of 100 MWh. It will be situated on the site of the former Ptolemaida lignite mines. Together, these projects form part of PPC SA’s broad- er 2025–27 investment plan, which includes the devel- opment of BESS projects with a combined storage capacity of approximately 600 MW across Greece and South-Eastern Europe. In parallel, HELLENiQ ENERGY recently announced two BESS projects in Florina, with a combined capac- ity of 50 MW/200 MWh; construction is expected to begin in the fourth quarter of 2025. These projects, together with the recent aforementioned acquisitions, bring HELLENiQ ENERGY’s total renewables portfolio – including operating, under-construction, and ready- to-build assets – to approximately 1.5 GW. The energy storage market is also expanding through strategic partnerships between renewable developers and technology providers. In 2025, FARIA Renewables and HUAWEI signed a memorandum of understand- ing (MoU) to advance the development and opera- tion of BESS projects in Greece, formalising their col- laboration through the signing of a contract for FARIA Renewables’ first standalone storage project. The
project will have a nominal power of 49.9 MW and a storage capacity of 134.16 MWh and was expected to become operational before the end of 2025. Com- plementing this initiative, FARIA Renewables secured project financing from Attica Bank in July 2025. The project forms part of the National Recovery and Resil- ience Plan (“Greece 2.0”), which is co-funded by the EU’s NextGenerationEU programme and focuses on advancing green transition and digital transformation. The total investment amounts to EUR28 million. Collectively, these developments highlight the emer- gence of energy storage as a key enabler of Greece’s next growth phase in renewables. By enhancing grid stability, optimising RES utilisation, and creating new avenues for investment, the BESS sector is expected to become a focal point for cross-sector M&A and partnership activity, linking utilities, technology pro- viders, and financial institutions in the broader clean- energy ecosystem. Opportunities for investment in Greece’s energy transmission infrastructure As renewable generation continues to grow, grid inte- gration and system flexibility have become crucial to maintaining stability and ensuring efficient use of clean generation. The challenge is no longer limited to building renewable capacity, but to modernising the transmission network so it can accommodate the accelerating inflow of intermittent generation and cross-border trade. With renewable curtailments reaching high levels in 2025 and grid congestion intensifying across high-production areas, upgrading transmission infrastructure and enhancing intercon- nection capacity are of major importance. The rapid expansion of transmission and interconnec- tion infrastructure is reshaping Greece’s investment landscape, creating new opportunities for M&A activ- ity in advanced grid technologies and system integra- tion. As domestic and cross-border projects progress, demand is increasing for expertise in grid manage- ment software, digital control systems, and high- capacity transmission solutions. Ongoing upgrades to Greece’s grid and interconnections are paving the way for new investment opportunities and reaffirming the country’s position as a key player in the region’s clean-energy transition.
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