HUAI'AN, China — China activated the world's largest compressed-air energy storage facility on January 26, 2026, in Jiangsu province, with capacity to supply electricity to approximately 600,000 households annually, according to Harbin Electric Corporation, which participated. HUAI'AN, China — China activated the world's largest compressed-air energy storage facility on January 26, 2026, in Jiangsu province, with capacity to supply electricity to approximately 600,000 households annually, according to Harbin Electric Corporation, which participated. This technology strategy assessment on compressed air energy storage (CAES), released as part of the Long-Duration Storage Shot, contains the findings from the Storage Innovations (SI) 2030 strategic initiative. The objective of SI 2030 is to develop specific and quantifiable research, development. The world's first non-supplementary fired compressed air energy storage power station, the Jintan Salt Cave Compressed Air Energy Storage Project in China, has begun sending electricity to the state grid. The national pilot demonstration project was jointly developed by China National Salt Industry. New 2. The large-scale CAES uses molten salt and pressurized thermal water storage to achieve high efficiency, with power generated through two 300 MW units. Final permitting approval from the California Energy Commission (CEC). Baker Hughes and Hydrostor's agreement integrates advanced technologies for 1. 4 GW of A-CAES projects, enhancing global grid reliability and resilience. Baker Hughes supports Wabash Valley Resources' low-carbon ammonia plant with technology for hydrogen production and CO2 sequestration, producing.