Long-duration energy storage project development and commissioning worldwide
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.
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.
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.
A massive 800 MW / 1.6 GWh vanadium flow battery project is under construction in Laufenburg, Switzerland, aiming to support AI data centers and grid stability.
The U.S. Department of Energy has authorized NOMAD Power Solutions to begin construction on a $19 million transportable LDES project in Vermont.
A major solar-plus-storage project in West Virginia will feature 100MWh of zinc-based long-duration energy storage, marking a significant step for LDES commercialization.
China Three Gorges Corporation is developing a major all-vanadium redox flow energy storage project in Jimsar, Xinjiang, integrating photovoltaic power generation with long-duration storage to supply clean energy to thousands of households.
MN8 Energy, Google, and Eos Energy Enterprises have announced a major integrated clean energy project in West Virginia, featuring a commercial-scale zinc-based long-duration energy storage system.
Yunnan Province has released its 2026 new shared energy storage project list, featuring 13 projects totaling 1900MW/7600MWh. The list includes a massive 300MW/1200MWh all-vanadium redox flow battery project in Gengma County.
UK-based LDES startup Certain Energy has closed a £10 million Series A funding round to commercialize its manganese flow battery technology. The funds will support a grid-connected demonstration project in India and UK facility expansion.
Origin Energy will pilot Allegro Energy's 60 MWh microemulsion flow battery at the Eraring power station, offering up to 75 hours of long-duration energy storage.
Horizon Power is trialling vanadium, zinc-bromine, and sodium-sulphur flow batteries across Western Australia to provide long-duration off-grid power for remote communities.