Long-Duration Energy Storage intelligence — updated daily.
Delectrik Systems says it has won the tender to deploy India's first utility-scale vanadium redox flow battery project, sized at 100 MWh. Location, offtaker and commercial operation date were not disclosed in the 21 July 2026 announcement.
The EU's Electrification Action Plan cites a need for 200 GW of storage by 2030 and 500 GW by 2040, while India targets 236 GWh of battery storage by 2030 — but grid connections remain the bottleneck.
Vanadium redox flow batteries store energy in liquid electrolyte that is non-flammable, reusable and long-lived, offering a different risk and duration profile from lithium-ion systems.
Swiss developer FlexBase intends to install 108 vanadium redox flow batteries by 2029 in Laufenburg, delivering 1.2 GW of power and 2.1 GWh of storage at a cost of CHF 2.5–5 billion.
AIM-listed Invinity Energy Systems is raising at least £20 million and up to £25 million at 10 pence per share, anchored by a National Wealth Fund commitment of at least £10 million, to fund R&D, working capital and manufacturing expansion.
Energy Dome has launched the world's first commercial-scale CO2 Battery in Ottana, Sardinia — a closed-loop, thermo-mechanical long-duration storage plant designed to absorb excess wind and solar energy.
Researchers at Zhengzhou University have built a flow battery anolyte from thioctic acid that kept 98.1% of its capacity across 2,200 cycles, with independent reviewers saying it outperforms the vanadium benchmark.
Bondada Engineering has accepted GIPCL's Letter of Intent for a 20 MW/120 MWh vanadium redox flow battery at a gas-based plant in Vadodara, Gujarat, moving the award into contract execution.
Alinta Energy has scrapped its proposed 900 MW Oven Mountain pumped hydro project in New South Wales, removing roughly 7,200 MWh of eight-hour storage from Australia's development pipeline.
Invinity Energy Systems has confirmed £25 million in conditional gross proceeds from an equity raise, with the UK's National Wealth Fund contributing about £12.2 million to fund vanadium flow battery development and Scottish manufacturing expansion.
Sparton Resources' update details VRB Energy's restructured ownership across Beijing Puneng in China and a newly formed VRB USA vehicle targeting markets outside Asia, alongside flow battery projects in Hubei, Jiangsu and Arizona.
Vanadium flow batteries separate power from energy by storing electrolyte in external tanks, enabling multi-hour duty cycles — and manufacturers are reporting steep cost reductions as platforms such as Endurium mature.