3.6 GWh: Renalfa to Invest in Dual-Chemistry Energy Storage Cluster in Romania
2026-04-09 16:25
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en.Wedoany.com Reported - Renalfa Power Clusters recently acquired two renewable energy projects located in Arad County, western Romania, with plans for further investment and development. These projects are the 365 MW Horia 2 solar power plant and a nearby 400 MW / 800 MWh standalone battery energy storage system (BESS). The company plans to integrate them into a hybrid power cluster, expected to commence commercial operation in 2027. The announcement states that these projects are already in the late development stage, posing low risk.Horia-Arad Energy Storage Cluster Project

Renalfa plans a two-phase expansion of the combined Horia-Arad site, utilizing a hybrid dual-chemistry energy storage technology that combines lithium-ion and sodium-ion batteries, along with the introduction of grid-forming technology. The first phase will increase solar capacity to 568 MW and BESS capacity to 669 MW / 2,000 MWh. The second phase will add another 400 MW / 1,608 MWh standalone BESS, potentially combined with additional photovoltaic facilities. Upon completion, the total energy storage capacity will reach 3.6 GWh.

Ivo Prokopiev, CEO of Renalfa, stated: "When fully built, the Horia-Arad cluster will pioneer three deep-tech innovations: a hybrid dual-chemistry storage plan combining lithium-ion and sodium-ion batteries, grid-forming inverter technology, and a proprietary AI-driven dispatch and control platform. Together, they will transform the broader cluster into a so-called 'sovereign grid anchor,' capable of providing grid services previously exclusive to thermal power plants."

Renalfa Power Clusters is a newly established joint venture between Vienna-based clean energy investment group Renalfa Solapro Group and Paris-based investment management firm Rgreen Invest. This acquisition marks the joint venture's first investment, with core markets including Poland and Romania. Nyerges and Partners advised on the transaction. George Tecușan, Country Manager for Renalfa in Romania, noted: "[Nyerges and Partners'] expertise in due diligence, FDI approvals, and deal structuring helped us advance this project efficiently. Renalfa values their support and looks forward to continued collaboration in our energy initiatives." Last month, the European Commission approved a €150 million (approximately $173 million) subsidy scheme for installing at least 2,174 MWh of standalone energy storage facilities in Romania.

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