Power company AES Corporation is investigating the cause of what has been described as a thermal runaway incident at a 10MW battery energy storage system (BESS) site it owns and operates in Chandler, Arizona.

Welbar Energy Storage joint venture – made up of Penso Power and Luminous Energy – has secured planning permission for a 350MW connection capacity battery storage development with a five-hour duration in the UK.

The Long Duration Energy Storage Council, the organisation formed last year to push for the global deployment of eight-hour-plus duration storage technologies, has elected its first board of directors.

Italy-headquartered solar inverter manufacturer FIMER supplied 1MVA inverters to a solar-plus-storage project with a 18MWh battery energy storage system (BESS) in Gujarat, India.

Polarium, a Swedish manufacturer of lithium-ion based battery energy storage systems (BESS) technology, has been valued at over a billion dollars.

Zenobē has begun construction of its 50MW/100MWh battery storage asset in Scotland.

FreeWire Technologies, a battery-integrated EV charging solution provider, has raised US$125 million in new capital from global asset manager BlackRock and other investors.

Tesla made 846MWh of battery energy storage system deployments in the first quarter of this year.

A solar-plus-storage power plant, deployed at the site of an opencast lignite mine in Germany, is almost ready to go into action.

NTPC, a state-owned power producer and utility company in India, has signed a Memorandum of Understanding with Energy Vault.