compressed-air energy storage

Compressed air energy storage (CAES) is considered a mature form of deep storage due to its components being firmly “de-risked” but few projects are operating in the Western world. A project in the remote New South Wales town of Broken Hill promises to lead the way.

Energy storage with more than four hours of duration could assume a key role in integrating renewable energy into the US power grid on the back of a potential shift to net winter demand peaks, says the US National Renewable Energy Laboratory (NREL).

Hydrostor has signed a deal with miner Perilya to build a 200 MW/1,600 MWh advanced compressed air energy storage facility in a disused mine cavity in New South Wales, Australia.

A research group in China has proposed to solve the typical high working pressure issues of solar-powered sprinklers by using compressed air energy storage (CAES). According to their findings, combined PV-CAES sprinklers can easily achieve high pressure and low intensity high-quality water spraying.

Long-duration energy storage (LDES) is essential for decarbonizing the grid but gigawatt-hour scale systems continue to be tricky for companies with big ideas. Here are some of the latest innovations across a flourishing array of new – and old – ideas.

Israel-based Augwind has built its first 250 kW/1 MWh compressed air storage system for the collective community of Yahel, in the southern, desert part of the country. The commercial scale facility will be connected to a PV system and will be used for behind-the-meter services.

European electric transmission company body ENTSO-E has unveiled details of a project to install 11 GWh of electrolyzed hydrogen storage capacity across ten locations around the French capital by the end of the decade.

Researchers have studied the potential of using compressed air to store renewable energy in offshore saline aquifers. The technology could hold 77-96 TWh for up to two months in British waters, although the costs have proven hard to pin down.