In this US news roundup, we have financing updates for GridStor, Arevon, and Primergy, related to energy storage projects in Texas, California, and Nevada, respectively.

The LDES Council’s policy team discusses the role of policy and markets in scaling long-duration energy storage globally with ESN Premium.

California’s rapid adoption of energy storage has been a major success, but market participation is complex and competitive, write Matt Drazenovich of TWAICE and Chris Swanson of Fullmark Energy.

Energy firm RWE added 2GW to its US operating capacity in 2025, bringing its total operational capacity to nearly 13GW across the country.

Recently, utility Xcel Energy announced it would install 30GWh of US startup Form Energy’s iron-air batteries at a data centre in Pine Island, Minnesota, owned by tech giant Google.

Global long-duration energy storage (LDES) deployment figures soared in 2025, but newer technologies risk being outcompeted by the incumbent, lithium-ion (Li-ion).

Residential energy storage startup Base Power is collaborating with utility Denton County Electric Cooperative (CoServ) to deploy 100MW of residential energy storage across North Texas, US.

Energy-Storage.news speaks with Isshu Kikuma, energy storage analyst at BloombergNEF (BNEF), ahead of the upcoming Energy Storage Summit USA.

Developer Avantus has closed a financing package of over US$300 million for the 100MWac/130MWdc solar, 400MWh BESS Kitt Solar and Energy Storage Project in Pinal County, Arizona, US.

Energy-Storage.news Premium speaks with Claire McConnell, VP business development for Redwood Materials’ energy storage business, Redwood Energy, about its recent backing from Google and Nvidia, and what it has planned next.