WBS Power GmbH announced the sale of Project Jupiter, a flagship infrastructure development in Germany, to Prime Capital AG, acting on behalf of its Prime Green Energy Infrastructure Fund II S.A., SICAV-RAIF. The transaction was announced on December 3, 2025.

Project Specifications and Scale

Project Jupiter includes a 500 MW / 2,000 MWh Battery Energy Storage System (BESS) and up to 150 MWp of Solar PV on a former airfield, making it the largest co-located BESS and Solar PV project currently planned in Germany. The critical infrastructure project is located on a former military airfield in Brandenburg, which WBS Power acquired in 2022.

With an expected investment of EUR 500 million, construction is currently envisaged to start by late 2026 or early 2027. Both the BESS and Solar PV components will share a single grid connection, injecting into the 380 kV high-voltage line operated by transmission system operator 50Hertz.

Strategic Data Centre Development

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. The parties plan to capitalize on the strategic location and robust 380 kV grid connection by integrating on-site consumption and developing the hyperscale data center with a planned capacity of up to 500 MW.

This initiative reflects the growing demand for data centers in Germany, particularly those co-located with energy infrastructure, as such facilities are highly energy-intensive and benefit significantly from direct access to renewable power and grid stability.

Transaction Structure and Advisory Services

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. The parties have agreed not to disclose further details.

To ensure the earliest possible grid connection date, the parties have agreed to accelerate procurement of long-lead infrastructure items, including transformers. PwC and Capcora jointly acted as exclusive sell-side M&A advisors to WBS Power GmbH for this transaction.

Company Leadership Statements

Maciej Marcjanik, Chief Executive Officer of WBS Power Group, stated: “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.”

Dr Mathias Bimberg, Head of Infrastructure at Prime Capital, commented: “Germany is back! This acquisition strengthens the country's critical infrastructure by combining renewable energy and digital capacity at an unprecedented scale. Project Jupiter is a cornerstone for a resilient, sustainable, and future-proof energy system. It also marks a pivotal step in executing our fund's strategy to invest in transformative assets that drive the energy transition in Europe.”

Alexander Enrique Kuhn, Managing Partner at Capcora, added: “We are proud to have supported WBS Power in structuring the M&A process alongside PwC for this exceptional project. Bringing together two like-minded investors is critical to the success of a project of this magnitude and importance. With initiatives like Project Jupiter, we are making a tangible contribution to Germany's energy transition.”

Andrzej Rusniak, Director at PwC Poland, said: “This transaction exemplifies how strategic partnerships can accelerate the energy transition while creating long-term value. We are delighted to have co-advised with Capcora on a deal that combines our expertise, setting a benchmark for future projects in Europe.”

WBS Power, formerly part of PST Solartechnik, emerged through a strategic spin-off by its founder. With its roots in Poland, the company is now actively advancing multiple BESS, solar PV, onshore wind, and hyperscale data center projects across its two core markets, Germany and Poland. Prime Capital AG is an independent asset management firm founded in 2006 and owned by management and current and former senior employees. As of September 2025, Prime Capital has approximately EUR 3.9bn in Assets under Management and EUR 8.9bn in Assets under Administration.

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