California utility PG&E is developing a long-duration energy storage microgrid combining batteries and green hydrogen, in partnership with Energy Vault, the company known for its gravity-based solution.

A Madrid-headquartered developer has proposed a solar-plus-storage system in Spain with a 100MW/200MWh battery energy storage system (BESS).

A roundup of energy storage news stories from Europe.

Virtual power plant (VPP) specialist Swell Energy will aggregate home solar and battery systems in a new programme from the Sacramento Municipal Utility District (SMUD).

The California Independent System Operator (CAISO) has enacted market rule changes to make it easier for energy storage to provide grid ancillary services and help grid reliability.

Battery storage projects from Hynfra Energy Storage and OX2 totalling 130MWh have won contracts in energy auctions in Poland this week.

The power solutions arm of Mitsubishi Heavy Industries will deploy three co-located battery storage projects for Origis Energy in the Southeast United States.

Battery storage developer Spearmint Energy has started building a 150MW/300MWh unit in the ERCOT, Texas market, its first project.

Investor Claritas and system integrator Hynfra Energy Storage (HES) have signed a framework agreement to deploy half a gigawatt of utility-scale battery energy storage in Poland.

South Africa’s grid operator Eskom has issued a procurement notice for two grid-scale battery projects totalling 36MW/146MWh of energy storage, while the state-owned company’s CEO resigned this week.