WBS Power, a renewable energy project developer, announced the sale of Project Jupiter, which includes a 500 MW/2,000 MWh battery energy storage system (BESS) and up to 150 MW of solar capacity, located on a former airfield in Brandenburg, Germany. Prime Capital, acting on behalf of its Prime Green Energy Infrastructure Fund II, acquired the project.
Construction of the project is scheduled to start by late 2026 or early 2027, with an expected investment of €500 million (~$582 million). Both the BESS and PV components will share a single grid connection, injecting into the 380 kV high-voltage line operated by transmission system operator 50Hertz.
The acquisition will be executed via Jupiter JVCo S.à r.l., a Luxembourg-based entity established by Prime Capital for this purpose and is subject to Project Jupiter reaching ready-to-build status.
“Project Jupiter demonstrates our commitment to innovation and scale. By integrating Germany’s largest co-located BESS and Solar PV project with a hyperscale data center, we are creating a unique platform that supports both the energy transition and digital transformation. This project is a key milestone in our strategy to deliver next-generation infrastructure that combines renewable energy with digital capacity, reinforcing our leadership in sustainable development,” said Maciej Marcjanik, Chief Executive Officer of WBS Power Group.
The transaction also establishes a joint venture to strategically co-locate a hyperscale data center with a planned 500 MW capacity in the same area.
PwC and Capcora jointly acted as the exclusive sell-side M&A advisors to WBS Power for the transaction. DLA Piper served as the legal advisor to Prime Capital, while CMS served as the legal advisor to WBS Power. Fichtner acted as the technical advisor on the transaction.
In the first nine months of 2025, approximately 29 GW of solar projects were acquired compared to 28.3 GW in 9M 2024, according to Mercom’s 9M and Q3 2025 Solar Funding and M&A report.
Recently, Zelestra, a renewable energy project developer, entered into an agreement for the sale of its Latin America platform to Promigas, a multi-energy company based in Colombia.
