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 force a reassessment rather than a repetition of the old argument. China has commissioned the 600 MW / 2.4 GWh Huai’an compressed-air demonstration, Hydrostor has pushed ...