https://j.people.com.cn/n3/2025/0110/c95952-20264640.html

China’s first grid-connected and trial-operated liquefied air energy storage power plant has been put in operation in Shijiazhuang City, Hebei Province.
It has a daily power generation capacity of 4,000 kilowatt-hours (kWh), which can meet the daily electricity needs of more than 400 households.

The basic principle of liquefied air energy storage is to use electricity to purify and compress air when there is surplus electricity, and store it as liquid air. Then, during peak power consumption, the liquid air is pressurized, vaporized, and heated to expand to generate electricity.

There are six refrigerated tanks on the west side of the factory. The air is cooled to around minus 170 degrees Celsius here and then stored in liquid air tanks about 12 meters high and 2.5 meters in diameter. The storage capacity of liquefied air is about 20 times that of compressed air energy storage.”

There are many application scenarios for liquefied air energy storage power plants. For example, by building a liquefied air energy storage power plant at a liquefied natural gas (LNG) receiving base, the waste cold heat of LNG can be effectively utilized.