Compressed-air energy storage projects scale up but economics remain challenged

Recent demonstrations in China and North America have expanded compressed-gas storage capacity significantly, yet cost-competitiveness against batteries and other storage technologies has not improved proportionally.

First covered Sep 18, 2026 · 2:17 PM PT · 1 article · no longer in the live window

Compressed-air energy storage projects scale up but economics remain challenged — Image via cleantechnica.com

Coverage

8d CleanTechnica Compressed-Gas Storage Demonstrators Got Bigger. The Economics Didn’t Get Better. — Two years ago I called compressed-gas electricity-storage claims mostly hot air. Since then the sector has produced exactly the sort of evidence that should…

Primary sources

efiling.energy.ca.gov Getdocument (efiling.energy.ca.gov)

energy.ca.gov Willow Rock Energy Storage Center

More coverage from around the web

ankersolix.com Compressed Air Energy Storage 2026 - Anker SOLIX US

balkangreenenergynews.com China launches world’s largest compressed-air energy storage plant

ess-news.com World's largest compressed air energy storage station now fully operational in China - Energy Storage

solarpowerworldonline.com California power aggregators sign on for 50-MW slice of compressed-air long-duration energy storage

globenewswire.com Compressed Air Energy Storage Market Gains Momentum as Renewable Power Drives Long-Duration Grid Storage Investment

Appeared in: 2026-09-19 (#5)

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