Power Construction Corporation of China (POWERCHINA) recently signed an EPC contract on a 100-megawatt compressed-air energy storage (CAES) system project with a Shanghai-based energy enterprise. It is expected to be the first of its kind in the world once completed.
Designed to be capable of storing 400 megawatt-hours of power, the project was first approved as a national renewable energy demonstration project in 2018.
The CAES system has been regarded as a large-scale energy storage technology with such advantages as high efficiency, low cost and environmental protection.
It can turn the unstable power generated by the renewable energy into stable, controllable and high-quality power, which will help increase renewable energy consumption.
Capable of providing energy storage services, it will also play a role in peak load management, frequency control, phase modulation, voltage support, power backup and emergency response, and is also expected to improve efficiency, stability and safety of future power systems.
(Executive editor: Wang Ruoting)