UK — Ofgem Selects 16 Long-Duration Electricity Storage Projects for Cap-and-Floor Support
The UK's Office of Gas and Electricity Markets (Ofgem) announced on August 10, 2026, that it has selected 16 long-duration electricity storage projects totaling 7,645 MW for potential support under the first cap-and-floor application window. The portfolio includes pumped storage hydro, compressed air energy storage, lithium-ion batteries, and flow battery technologies, with discharge durations ranging from 8 hours to 32 hours. The consultation on the minded-to decision closes on August 7, 2026, with final awards expected in autumn 2026. The initiative represents a critical policy mechanism to incentivize the long-duration storage capacity needed to support the UK's 80% renewable electricity target by 2030.