Repono AB, a Sweden-based pan-European energy storage operator, has completed the acquisition of a 202 MW / 404 MWh (2.0 h) standalone battery energy storage system (BESS) project located in Argeș County, Romania, the company announced on October 21, 2025. The transaction establishes a partnership with local developers that foresees additional projects across Romania with a total combined capacity of up to 1.4 GW, reinforcing Repono's long-term commitment to the Romanian energy storage market.

The project was developed by a Bucharest-based renewable energy developer and is ready to build. It benefits from a grid connection contract with Transelectrica at the 220 kV Pitești Substation. Once operational, the facility will be among the largest grid-scale storage assets in Southeast Europe, capable of storing and releasing enough energy to supply more than 120,000 four-person households during peak-demand periods.

Market Operations and Optimization

Gunvor, in collaboration with Enspired, the Vienna-based optimizer, will manage the offtake and market optimization strategy for the project. This partnership aims to ensure efficient integration into the Romanian and regional power markets. The arrangement represents a comprehensive approach to maximizing the project's market participation and revenue potential within the regional energy ecosystem.

Legal and Regulatory Framework

The transaction and closing were successfully enabled with the legal support of the Romanian law firm RTPR. The firm's expertise ensured a smooth execution within the Romanian regulatory framework, facilitating the complex acquisition process. This legal support was crucial for navigating the regulatory requirements specific to energy storage projects in Romania.

Strategic Impact and Expansion

The Argeș project will play a pivotal role in enhancing grid stability, balancing renewable generation, and advancing both Romania's and the EU's decarbonization goals. Karim Nils Grueber, CEO of Repono AB, stated, “This transaction represents an important milestone for Repono AB and demonstrates our continued commitment to developing large-scale storage infrastructure that supports Europe's energy transition.”

Harmen de Kool, Chairman of the Board of Repono AB, representing the leading clean tech impact investor InnoEnergy, added, “With this project, InnoEnergy's aim to achieve carbon neutrality is further fortified. Large-scale storage assets like Argeș are key enablers of a stable and decarbonized European power system”.

With this acquisition, Repono AB continues to expand its pan-European portfolio of grid-scale battery energy storage systems, with active developments across Germany, Romania, Italy, Austria, and Poland. This expansion underscores the company's role as a leading independent storage platform driving Europe's renewable energy transformation.

Repono AB is a Swedish-based independent energy storage operator and developer focused on deploying large-scale battery energy storage systems across Europe. The company enables grid stability, market flexibility, and renewable integration through its growing portfolio of assets in key European markets.

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