Germany’s grid-scale battery energy storage market remains fundamentally strong, but persistent policy uncertainty over grid fees, connection processes, frequency containment ancillary services (FCAs), and the forthcoming capacity market is clouding investment certainty, speakers at the Energy Storage Summit Germany 2026 warned. The market’s underlying drivers — rising renewable penetration, coal phase-out, and increasing price volatility — continue to support robust deployment pipelines, yet developers are increasingly pricing regulatory risk alongside technical and commercial risk.
The grid fee framework remains a primary friction point. While the Bundesnetzagentur has moved to exempt storage from certain grid charges during a transitional period, the long-term treatment remains unresolved. This ambiguity directly affects project economics, particularly for assets providing multiple revenue streams across arbitrage, balancing, and capacity markets. Connection timelines and costs add another layer of unpredictability, with queue depths and non-standard technical requirements varying significantly across transmission and distribution operators.
FCAs — a critical revenue stack for fast-responding assets — face their own regulatory evolution. The transition from weekly to daily auctions and the potential introduction of marginal pricing could reshape value propositions for batteries competing with other flexibility providers. Meanwhile, the design of Germany’s long-awaited capacity market, expected to launch later this decade, will determine whether storage receives appropriate remuneration for its firm capacity contribution or remains disadvantaged against conventional generation.
Industry participants at the summit emphasised that policy clarity on these interlocking issues is now as decisive as technology cost curves for the next wave of deployment. Germany’s storage target of 15 GW by 2030 and 55 GW by 2045 is achievable, but only if the regulatory framework evolves from a patchwork of temporary measures into a coherent, investment-grade regime that recognises storage’s unique dual role as both generation and load.
Read the full report at Energy Storage News.