Axpo and energieUri commission Switzerland’s largest operational BESS facility
energy-storage.news Sep 11, 2026

Axpo and energieUri commission Switzerland’s largest operational BESS facility

AI-summarised brief · reviewed before publication

Axpo and energieUri inaugurated Switzerland’s largest operational battery energy storage system (BESS) in Gurtnellen, Canton Uri, on 9 September 2026. The joint project, located at the Plattischachen industrial site, features a 50 MW installation by Axpo and an 8.4 MW system by energieUri, both supplied by Fluence. Axpo’s BESS will support national grid stability, while energieUri’s unit serves regional demands in Uri. The facilities aim to store surplus renewable power and release it during peak periods, enhancing grid flexibility.

💡 Why It Matters

  • · The launch marks a pivotal shift from Switzerland’s traditional pumped‑hydro reliance toward scalable battery storage, positioning the country as a leader in modern grid resilience.