Long-Duration Energy Storage intelligence — updated daily.
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.
China has introduced a consumption tax on vanadium flow batteries starting September 1, impacting project IRRs, while the industry faces a significant gap between planned and actual deployed capacity.
British vanadium flow battery maker Invinity secured only one project in Ofgem's LDES cap-and-floor shortlist, prompting warnings of a manufacturing shift away from the UK.
International collaborations are driving the commercialization of advanced flow battery technologies, with key partnerships in Australia, Europe, and the US targeting massive GW-scale deployments and diverse industrial applications.
The global VRB market is projected to grow from $231.68 million in 2025 to $485.06 million by 2034, driven by a global shift toward non-lithium alternatives and increasing long-duration storage requirements in utility tenders.
Recent policy developments highlight contrasting regulatory approaches to energy storage, with the US introducing grid control bans affecting battery systems, while Chinese provinces like Hebei and Henan enforce stricter project management and rectifications.
China is rapidly advancing multiple gigawatt-scale vanadium redox flow battery projects, with major developments in Yunnan, Xinjiang, and Shaanxi highlighting the technology's growing role in grid balancing and renewable integration.
An international research group has demonstrated that 3D-printed Triply Periodic Minimal Surfaces (TPMS) electrodes can significantly improve the behavior of vanadium redox flow batteries, offering a breakthrough in mass transport and hydraulic resistance.