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.

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).

There’s barely time to catch our breath before 2023 begins but here’s a chance to look back with the top picks of our content from 2022.

A roundup of the biggest projects, financing and offtake deals in the sector that Energy-Storage.news has reported on this year.

We caught up with Mike Ferry, president of California-based second life energy storage firm Smartville Inc.

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.

California-based firm Element Energy has raised a US$28 million Series B to accelerate its proprietary BMS-enhanced second life energy storage solution, with 2.5GWh of modules secured already.

California utility PG&E has invited residential and commercial customers to enrol onto three vehicle-to-everything (V2X) programmes using EV batteries for a range of use cases.

Cost inflation and supply chain issues have forced California utility PG&E to increase the prices it will pay for 2GWh of battery storage projects, in a move which has been approved by regulators.

Energy storage costs in the US grew 13% from Q1 2021 to Q1 2022, said the National Renewable Energy Laboratory (NREL) in a cost benchmarking analysis.