Partners Group Invests Over €1 Billion in Green Flexibility

Partners Group, acting on behalf of its clients, has committed up to €400 million in equity to green flexibility, a German developer and operator of large-scale battery energy storage systems (BESS). Combined with additional debt financing, this investment provides over €1 billion to accelerate Europe’s energy transition.

Green flexibility specializes in BESS, which store surplus energy during high supply periods and release it when needed. These systems help stabilize the grid, reduce curtailment, and manage price fluctuations, addressing the growing demand for flexibility as renewable energy capacity expands in Germany. The company’s advanced technology, local partnerships, and experienced leadership position it to become a leading Independent Flexibility Provider (IFP).

Led by Christoph Ostermann, founder of sonnen and a pioneer in Virtual Power Plants, green flexibility aims to execute an extensive pipeline of projects. This investment enables the company to scale operations and support Germany’s energy transition.

David Daum, Partner at Partners Group, highlighted green flexibility’s role in integrating renewable energy into Germany’s power grid and expressed confidence in the company’s experienced management team. Christoph Ostermann emphasized the importance of BESS as a versatile, efficient, and fast-to-deploy solution for modernizing energy grids, noting that Partners Group’s expertise makes it an ideal partner for growth.

This marks another significant step in Partners Group’s infrastructure investment strategy, which manages €27 billion in assets globally. Partners Group was advised by A&O Shearman on this transaction.