The US battery storage sector is evolving at lightning speed, and a recent strategic move by Eurowind Energy and Capstone Infrastructure Corporation has added fresh energy to the market. Through their joint venture, Obra Maestra Renewables, the partners have finalized the sale of the Potentia-Viridi BESS project—a milestone that reflects both shifting priorities and powerful value creation within the renewable energy space. Here’s a closer look at the forces driving this transaction and why it matters.

On December 9, 2025, Eurowind Energy and Capstone announced the sale of the Potentia-Viridi BESS project in California to Renew Development HoldCo LLC, a Clearway Group subsidiary. Although the deal value remains undisclosed, the transfer of 100% membership interests in Levy Alameda, LLC officially took effect on November 10, 2025. This divestment aligns with Eurowind Energy’s broader strategic shift in its US operations, showcasing the company’s disciplined approach to project development and successful exits. The 50/50 JV structure with Capstone Infrastructure Corporation played a key role—enabling shared risk, synchronized incentives, and a robust foundation for value generation.

Spanning approximately 85 acres in eastern Alameda County, the 400 MW/3,200 MWh Potentia-Viridi BESS project represents the next generation of large-scale energy storage. Designed with a 4–8-hour duration window, the development includes an expansive battery facility, O&M building, dedicated substation, a 500-kV gen-tie line, and full interconnection at PG&E’s Tesla Substation. Construction is expected to span roughly 18 months beginning no later than Q1 2026, followed by six months of rigorous testing. With commissioning anticipated to wrap up by Q2 2028, the project is positioned to play a vital role in stabilizing California’s grid as renewable penetration deepens.

Beyond its technical scale, the Potentia-Viridi project carries significant operational value. By charging during low-demand windows and discharging when demand peaks, the system will ease pressure on the grid, bolster renewable integration, and reduce dependence on natural gas peaker plants. This flexible capacity is essential for California’s ambitious clean energy goals, making the project a meaningful contributor to long-term grid resilience. The sale further highlights Clearway Group’s strategic pursuit of high-impact storage assets and reaffirms the crucial role of developers like Eurowind and Capstone in advancing energy transition infrastructure.

As the US storage market continues accelerating, transactions like this showcase how collaboration, strategic timing, and disciplined development can unlock significant industry value.

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