METLEN confirms Final Investment Decision for 330MW / 790MWh Battery Energy Storage System in Thessaly, Greece

Metlen Energy & Metals has committed capital to a substantial 330MW / 790MWh Battery Energy Storage System in Thessaly, Greece, by confirming its Final Investment Decision. This direct development by Metlen positions a significant long-duration storage asset within the Greek energy infrastructure. The commercial rationale for Metlen likely centers on monetizing grid services, such as frequency regulation or capacity provision, within the evolving Greek electricity market. Deploying 790MWh of storage capacity in Thessaly will enhance grid stability and facilitate greater integration of intermittent renewable generation across Greece. This FID demonstrates a clear capital allocation towards a large-scale energy storage solution, critical for Greece's decarbonization pathway. As a global industrial and energy company, Metlen Energy & Metals is tangibly advancing its energy transition objectives with this 330MW BESS project. The company's strategic focus on both Energy and Metallurgy provides a diversified platform, with this development specifically bolstering its energy sector capabilities in Greece. This project, announced on 2025-09-30, represents a concrete step in Metlen's portfolio expansion within the Greek storage landscape. While specific prior project volumes are not detailed, Metlen's FID for this 790MWh system confirms its active role as a developer in the Greek market.