The application of cryogenic technique to air precooling of utility gas turbines not only presents a way of power utilization during neap load periods of networks, but is also subservient to peak load accomodation during sommer time. The paper presents an introduction to the cryo storage technique and, based on a behavior analysis of gas turbines, explains the application of air precooling in gas turbine power stations, reviews the status guo of oversea applications and puts forth some suggestions and...