Flow battery maker Invinity Energy Systems signed a deal for the newest iteration of its product with Everdura at RE+ in Las Vegas last week.

Sumitomo Electric will supply an 8-hour duration vanadium redox flow battery (VRFB) to a recently-established municipal power company in Niigata, Japan.

Closed-loop pumped hydro energy storage (PHES) has fewer emissions associated with its development, construction and use than other leading options for large-scale energy storage.

The domestic manufacturing capabilities of US flow battery providers ESS Inc and Stryten Energy have been celebrated by senior state politicians in Oregon and Georgia respectively.

Germany-based flow battery company VoltStorage has been granted a venture debt loan of €30 million (US$33 million) by the European Investment Bank (EIB), guaranteed by the European Commission.

More news in brief from around the world in energy storage, featuring vanadium redox flow batteries (VRFBs), bankruptcy for a thermal storage startup and a new integrated lithium tech.

Our mid-year series continues with a look back at all 12 Guest Blogs published during the first six months of this year.

A seven-year observation of a vanadium flow battery in California from Sumitomo Electric has been completed, while US lab PNNL has found an alternative, food-based electrolyte which it said boosted capacity and longevity.

South Africa hospital operator eyes non-lithium energy storage for PV optimisation, peak shaving & resiliency

Samantha McGahan of Australian Vanadium on the electrolyte, which is the single most important material for making vanadium flow batteries.