Harbin Electric Corporation and Shanghai Electric supplied core equipment for Huai'an Salt Cavern CAES project
Harbin Electric Corporation and Shanghai Electric supplied core equipment, including air turbine units, generators, electric motors, and molten salt storage tanks, for the newly operational 600 MW Huai'an Salt Cavern compressed air energy storage project in China.
Counterparts (2)
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- Supply agreement for core equipment for a 600 MW CAES project.
- Involvement of major Chinese industrial suppliers: Harbin Electric Corporation and Shanghai Electric.
- Focus on advanced, large-scale salt cavern compressed air energy storage (CAES) technology.
- Strategic project located in China, supporting its energy transition.
Source Intelligence
The project has 2,400 MWh of storage. It utilizes roughly 980,000 cubic meters of salt caverns located 1,150–1,500 meters underground. It employs non‑supplementary combustion high‑temperature adiabatic compression technology, based on molten salt and pressurized thermal water, achieving approximately 71% conversion efficiency. The first 300 MW unit reached full-load operation in December 2025. Quote: "With 600 MW of installed capacity and 2,400 MWh of storage, the Huai’an Salt Cavern project is now the world’s largest compressed air energy storage facility... The project features two 300 MW CAES units, utilizing roughly 980,000 cubic meters of salt caverns located 1,150–1,500 meters underground. It employs non‑supplementary combustion high‑temperature adiabatic compression technology, based on molten salt and pressurized thermal water, achieving approximately 71% conversion efficiency. ...The first 300 MW unit reached full-load operation in December 2025, followed by Unit 2’s commissioning."
"Harbin Electric Corporation and Shanghai Electric supplied core equipment"
"Harbin Electric Corporation and Shanghai Electric supplied core equipment"
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