Invinity secures orders for new Endurium vanadium flow battery

UK-based vanadium redox flow battery manufacturer Invinity says it has already secured orders for its next-generation Endurium product and will begin shipments in 2024.

Invinity says the Endurium system can provide four to 18 hours of energy storage capacity, without a cycle limit, for solar, wind, and standalone energy storage sites, offering 12 MWh to 1 GWh of storage capacity.

The modular, scalable system – which Invinity says has had performance verified by Norwegian testing agency DNV – will be shipped to customers including German-owned energy equipment supplier Gamesa and Taiwanese energy storage business Everdura.

The manufacturer, which has production lines in Scotland, in the United Kingdom, said it has also secured 84 MWh of Endurium system orders from US DoE-backed projects. The system will be used at the DoE’s Pacific Northwest National Laboratory and the 700 kV to 3.6 MW Dairyland Power Community in Allamakee County, Iowa. Invinity said DoE-related shipments would begin in 2025.

UK subsidy

With the United Kingdom government having announced, in October 2024, plans for a “cap-and-floor” based subsidy scheme for long-duration energy storage (LDES) systems – guaranteeing minimum and maximum revenues – Invinity said the Endurium would qualify under the section for innovative LDES technology.

Announcing the orders in a press release on Dec. 3, 2024, Invinity President and Chief Commercial Officer Matt Harper said, “Endurium is designed to dispatch renewable [energy-] generated power on demand at a lower total cost than any fuel-based conventional form of energy.”

VFBs are based on a material which is more abundant than lithium or copper and more geographically dispersed than lithium-ion battery raw materials. VFBs also have no risk of thermal runaway and can be sited near residential areas as a result.

Invinity announced, in June 2024, it was planning a 500 MWh per year manufacturing facility to assemble its products in Motherwell, Scotland. The company already has a production line in Bathgate, Scotland, which is set to focus on cell stack manufacturing once the Motherwell site is operational. Invinity said, in June, it was expecting the Motherwell site to be operational before October 2024.

The company had deployed, or contracted for 75 MWh of its VFBs for 82 projects across 15 countries by June 2024.