EnergyInsiders

Germany is experiencing a battery blitz. The market is expected to triple from 2GW to 6GW in less than two years. To give a bit of context, Zach Williams from @ModoEnergy , gives us the big picture and fundamentals of the German battery market. Legacy developers have not yet been able to catch that wave, but newcomers have. @gerardreid14 and I bring on one those new pioneers, Philipp Man, CEO of Terralayr. In less than three years, Philipp has managed to set up a company which operates or currently builds 150MW of batteries in Germany; more importantly he has managed to sign some of the first tolling agreements with heavyweights such as @VattenfallGroup and @RWE_AG . His approach combines medium size batteries (10-30MW) rather than gigantic ones. The Vattenfall-Terralayr deal is a pioneering seven-year, 55 MW multi-asset capacity tolling agreement for a decentralized fleet of battery energy storage systems (BESS) across Germany, announced in May 2025. Described as an industry-first "virtual battery tolling structure," it marks a significant shift from traditional single-asset tolling models, enabling scalable and flexible energy storage solutions without significant capital investment from Vattenfall. With Philipp, we dissect his lightspeed approach in a seemingly bureaucratic environment, we analyse how he has been to put assets on the ground so fast, and his approach to commercialisation of flexibility combining hard assets and a digital layer. We discuss the price formation of tolling agreements, the “tranching” of capacity and how he sees the future. Is Terralayr a tech company? Is it an infrastructure play? Well, a bit of both.