Long-Duration Energy Storage intelligence — updated daily.
Recent advancements in vanadium redox flow battery technology are significantly boosting efficiency and extending operational lifespans. Innovations in 3D-printed electrodes and core patent developments are paving the way for more cost-effective long-duration energy storage.
Queensland has granted final environmental approval for a multi-billion-dollar critical minerals precinct near Mount Isa to secure domestic vanadium supplies, while in the US, Google and partners announce a massive solar-plus-LDES project in West Virginia.
Vanadium redox flow batteries achieve LCOS cost parity with lithium-ion at roughly 8 hours of discharge, but extreme spot price volatility in the vanadium market remains a critical risk factor for project economics and future scaling.
The Xinjiang Jimusar All-Vanadium Liquid Flow Battery Energy Storage Station has entered commercial operation, marking a major milestone for large-capacity long-duration storage in China. This aligns with the nation's booming vanadium supply chain and regional project accelerations.
Sumitomo Electric has announced a new 2 MW/12 MWh V40 flow battery system designed to compete with lithium-ion in the 6-to-8-hour duration market. The launch aligns with Japan's expanding grid-scale storage initiatives and diversification of subsidy programs.
The global stationary energy storage market is projected to reach $242.43 billion by 2034. Flow batteries are expected to grow at an 18.20% CAGR as markets prioritize long-duration grid flexibility.
The global zinc-bromine battery market, valued at $9.2 billion in 2024, is projected to reach $23.27 billion by 2032. Safety, long cycle life, and residential applications are driving this growth.
China is witnessing a surge in vanadium redox flow battery projects, including a 200MW/800MWh station in Yunnan and a 2GW manufacturing base in Nanyang. The electrolyte leasing model is also gaining traction.
Invinity Energy Systems is reassessing its UK manufacturing plans after only one of its 21 eligible projects was included in Ofgem’s provisional Window 1 LDES portfolio. The final decision for the 7.6 GW cap-and-floor mechanism is expected in autumn 2026.
Google, MN8 Energy, and Eos Energy Enterprises are developing the $350 million Mammoth Solar project in West Virginia, featuring a pioneering 100 MWh zinc-based long-duration energy storage system.
Dutch startup Ore Energy has successfully demonstrated up to 100 hours of continuous discharge with its iron-air battery technology and secured agreements for multi-day storage deployment in Europe.
Researchers at the University of Waterloo have designed a nature-inspired 3D-printed porous electrode that significantly improves the efficiency and safety of redox flow batteries for large-scale storage.