January 24, 2025: German BESS developer Green Flexibility has secured an initial €400 million ($413 million) pledge from Swiss private equity firm the Partners Group to expand battery storage projects.

Green Flexibility said on January 14 the investment, complemented by debt financing, should eventually provide it with a total projects volume worth more than €1bn.

CEO Christoph Ostermann said the company would deploy the best available battery storage tech on the market as it scales up projects and expands its activities including stabilizing grids, enhancing energy flexibility, and supporting wider integration of renewable energy.

Green Flexibility, founded in Bavaria in 2023, said it already has a BESS development pipeline of 10GW, more than 100MW of which are said to be construction ready, although it did not specify the battery chemistry involved.

The company said it had recently started work on the site of a 33MWh BESS project in the Bavarian town of Immenstadt.

Partners Group, which has its roots in Switzerland and a strong presence in the US, is one of the largest companies in the global private markets space managing around $150 billion in assets.