Germany is overhauling how grid fees are structured, and the upcoming changes could significantly affect the economics of battery storage projects. With exemptions set to end after 2029 and new tariff designs under discussion, developers and investors face uncertainty at a critical moment for project planning.

The key challenge is finding the right balance: ensuring storage contributes fairly to grid costs without introducing fixed charges that could undermine merchant investment — the foundation of Germany’s rapidly expanding storage market.

AFRY’s latest analysis explores how different tariff options may influence project viability, operational behaviour, and long‑term deployment.