Long-duration energy storage Archives - Page 2 of 6 - Energy Storage

Long-duration energy storage

All Long-duration energy storage news

Flow batteries

CMBlu Energy to supply Uniper with 5 GWh of SolidFlow battery storage technology The ten-year agreement sees CMBlu Energy supply its SolidFlow battery technology to the German energy company from 2027. Uniper intends to deploy the battery systems in tranches of at least 100 MWh.

Sandra Enkhardt

Feb 03, 2026

Products & Services

Tesla and lithium-ion top new long-duration storage leaderboard, Energy Dome in the mix The snapshot of the long-duration industry suggest big changes to come as major decisions get made for technologies and vendors.

Jan 30, 2026

Projects & Applications

RheEnergise commissions first ‘high density hydro’ LDES in UK Pilot long-duration energy storage (LDES) project uses low viscosity, denser-than-water fluid. RheEnergise is panning for future projects in 10 MW to 100 MW range, with six to 20 hours of storage capacity.

Jan 27, 2026

Projects & Applications

World’s largest compressed-air storage plant switched on in China New 2.4 GWh adiabatic compressed air energy storage (CAES) plant now operational in in Jiangsu province. The large-scale CAES uses molten salt and pressurized thermal water storage to achieve high efficiency, with power generated through two 300 MW units.

Jan 27, 2026

Projects & Applications

Industry groups call on the EU to adopt a framework for long-duration energy storage LDES technologies, which include pumped hydropower, compressed air, flow batteries, thermal storage, and electricity-to-gas conversion pathways, can store energy for several hours, days, or even seasons.

Pilar Sanchez Molina

Jan 26, 2026

Finance

Indian startup Meine Electric raises $750,000 for iron–air long-duration energy storage Indian energy storage startup Meine Electric has raised $750,000 (INR 6.7 crore) in a pre-seed funding round to support its transition from laboratory-scale prototypes to pilot-ready iron–air battery systems.

Jan 23, 2026

Technologies

Noon Energy demonstrates 100+ hour ultra-long-duration energy storage system The pilot showcases a reversible solid oxide fuel cell battery and represents the first fully containerized, modular ultra-LDES system to be operated for thousands of hours, achieving more than 200 hours of energy storage capacity.

Jan 21, 2026

Technologies

China completes first full-scale underwater pumped storage trial at 65 meters depth DEC’s “Dongchu No. 1” prototype completed more than 100 charge-discharge cycles at 65 meters depth in a freshwater lake.

Jan 21, 2026

Products

GES rolls out manganese-hydrogen battery with significant cost edge over lithium-ion According to GES, the manganese-hydrogen battery it has developed represents an advanced solution for long-duration energy storage. The technology enables energy to be stored for many hours or even days, overcoming the structural limitations of lithium-ion batteries, which are primarily designed for short-duration applications.

Sergio Matalucci

Jan 15, 2026

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