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

Emerging tech must prove it can outcompete the incumbent, writes Sightline Climate analyst Lukas Karapin-Springorum, outlining the state of play in LDES technology today.

Toronto, Ontario-headquartered Hydrostor has received planning approval for a 200MW/1,600MWh advanced compressed air energy storage (A-CAES) project in New South Wales, Australia.

Installation work has started on a compressed air energy storage project in Jiangsu, China, claimed to be the largest in the world of its kind.

Toronto, Ontario-headquartered Hydrostor is proposing to deploy one of its advanced compressed air energy storage (A-CAES) facilities in Greater Napanee, Ontario.

Dublin-listed compressed air energy storage (CAES) project developer Corre Energy has hired investment bank Rothschild to explore the possibility of private investment in the firm.

A compressed air energy storage (CAES) project in Hubei, China, has come online, with 300MW/1,500MWh of capacity.

Compressed air energy storage (CAES) firm Corre Energy has agreed an offtake and co-investment deal with utility Eneco for a project in Germany.

Construction has started on a 350MW/1.4GWh compressed air energy storage (CAES) unit in Shangdong, China.

An advanced compressed air energy storage has been selected as the preferred option for a city in rural New South Wales, Australia.