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'Super power bank' goes live! World's largest salt cavern compressed air energy storage ...
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Fusion42 · 12 September 2026 · Fusion42 review
The Jintan salt cavern compressed air energy storage project in Jiangsu, China, has started full operations with two units each offering 350 MW capacity, making it the world's largest of its kind. This low-carbon energy storage system uses deep salt caverns to store compressed air, supporting grid stability and renewable energy integration with an expected energy conversion efficiency over 70%.
This Wire brief sits within Fusion42's coverage of Climate Tech, and 2 sources have reported it.
◆ ◆ The Wire takeaway
The market for utility-scale energy storage in China just gained a new route to grid balancing without emissions. You need to explore salt cavern compressed air systems if your tech supports renewable grid integration or power demand management.
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2 sources · 12 Sep 2026
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