A Milestone for Eastern European Energy Storage
Greece has officially inaugurated its largest standalone battery energy storage system (BESS) in Nea Karyes, near Larissa. Boasting a capacity of 330 MW and 790 MWh, the facility is recognized as the largest off-grid battery storage project in Eastern Europe and one of the most significant in the entire European Union. The project required a substantial investment of over 170 million euros.
Strategic Partnerships and EU Funding
The landmark facility is jointly owned by METLEN Energy & Metals, holding a 49% stake, and the Karatzis Group, which owns the remaining 51%. Crucially, the development was supported by financing from the EU's NextGenerationEU recovery fund, underscoring the bloc's commitment to accelerating the green transition and enhancing grid resilience across member states.
The facility is specifically designed to absorb surplus renewable energy generated during midday solar peaks and release it during evening demand spikes, effectively mitigating wholesale price volatility.
Political and Economic Goals
Prime Minister Kyriakos Mitsotakis has directly linked the expansion of such energy storage infrastructure to the government's ambitious political goal of reducing energy costs by at least 30% by 2030. While the BESS plant will significantly stabilize the grid and reduce wholesale market fluctuations, officials note that translating these wholesale cost reductions into lower household retail tariffs will require further regulatory and market adjustments. By addressing grid stability challenges, the project paves the way for higher penetrations of intermittent renewables in the Greek power system.
Source: Hellaz
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