Long-duration energy storage
All Long-duration energy storage news
Meta signs 100 GWh supply agreement for Noon Energy’s ultra-long-duration fuel cell storage
Meta Platforms and Palo Alto-based Noon Energy have reached a reservation agreement for up to 1 GW / 100 GWh of energy storage capacity, marking a significant bet on ultra-long-duration energy storage to power the next generation of AI infrastructure.
Apr 21, 2026
Long-term storage grows by 49% in 2025 despite the financing crisis
A report by Wood Mackenzie indicates that the deployment of long-duration energy storage (LDES) technologies exceeded 15 GWh in 2025, but declining venture capital investment and falling lithium battery costs are hindering their commercial viability.
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Spanish government plans to accelerate permitting for hydroelectric plants
Consultation now open on plan to streamline permitting process for reversible hydroelectric plants. The government wants to integrate energy authorization, environmental assessment and water concession into a single procedure.
World’s largest compressed air energy storage station now fully operational in China
With 600 MW of installed capacity and 2,400 MWh of storage, the Huai'an Salt Cavern project is now the world’s largest compressed air energy storage facility, surpassing the 300 MW/1,500 MWh project commissioned earlier this year that previously held the title.
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Long-duration storage as an antidote to grid congestion, renewables curtailment
RenewaFLEXNL, a three-year Dutch initiative led by TNO, aims to accelerate long‑duration energy storage (8–100 h) to reduce grid congestion and better integrate renewable energy. pv magazine spoke with the project coordinator, Iraxte Gonzalez Aparicio, about diverse storage technologies, real-world applications, regulatory guidance, and energy management system tools to support large-scale solar‑plus‑storage deployment in the Netherlands and beyond.
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