The world's first 100-MW advanced compressed air energy storage (CAES) project, also the largest and most efficient advanced CAES power plant so far, was connected to the power generation grid in 2022 in Zhangjiakou, a city in north China's Hebei Province. The power plant can generate more than 132. . Non-lithium compressed air storage is now operating at 100 MW scale, validating long-duration capacity for high-renewable grids. A major Advanced Compressed Air Energy Storage (A-CAES) facility has begun commercial operation, marking a critical milestone for non-lithium, long-duration power. . 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. Several technologies could help to meet this need. At a utility scale, energy generated during periods of low demand can be released during peak load periods.
