Long-duration energy storage (LDES) developer-operator Hydrostor intends to enter its compressed air storage project into Ontario, Canada’s recently announced LDES procurement.

Update 28 April 2026: Following publication of this story, Hydrostor reached out to clarify some of the conditions detailed below and provided a statement.

Long-duration energy storage (LDES) developer-operator Hydrostor has announced a strategic technology and equity agreement with energy infrastructure equipment manufacturer Baker Hughes.

In this Energy-Storage.news roundup,  Hydrostor receives permitting approval for its California project, Hawaiian Electric is set to begin construction on a Maui battery energy storage system (BESS) and Peregrine and Wärtsilä advance construction of a Texas BESS.

Compressed air energy storage (CAES) developer Cache Power is partnering with construction company EllisDon to deliver a CAES facility in Northeast Alberta, Canada.

Hydrostor has secured US$55 million in funding from Export Development Canada (EDC) to advance development activities for its 200MW/1,600MWh Silver City Energy Storage Centre project in Broken Hill, New South Wales, Australia.

The Virginia General Assembly has passed legislation to promote new energy storage investments by the US state’s two main utilities.

Toronto, Ontario-headquartered Hydrostor has secured a US$200 million investment for its advanced compressed air energy storage (A-CAES) projects both in Canada and globally.

The US Department of Energy’s (DOE) Loan Programs Office (LPO) has made a conditional commitment for a loan to long-duration energy storage (LDES) developer and operator Hydrostor of up to US$1.76 billion.

The government of New South Wales has signed a land lease agreement for a long-duration advanced compressed air energy storage (A-CAES) project.