Project Introduction Traditional pumped storage energy has disadvantages such as requiring special geological conditions, limited application and promotion, needing abundant water sources, not suitable for arid and water-scarce areas, lower energy storage density, and affecting the ecological environment of the region. Traditional CAES (Compressed Air Energy Storage System) stations have disadvantages such as consuming a large amount of fossil fuels, poor economic efficiency of the system, heat exchange during the compression process of air storage, heating by external heat sources during energy release, and CAES's energy conversion efficiency being somewhat lower compared to other energy storage systems. This system proposes a damless pumped storage model that combines the advantages of compressed air energy storage technology and pumped storage technology, discarding their disadvantages, and achieving stepwise utilization of thermal and pressure energy. II. Product Performance Advantages The main advantages of the damless pumped storage system are: simple structure; no cooling or heating in the energy storage and generation process; Energy storage can be large or small; initial investment is low; it is green and pollution-free; it is less constrained by geographical environment. The innovative points of this system are: 1. Invention of a new type of high-efficiency compressed air energy storage system that combines the advantages of pumped hydro storage (PHS) and CAES, achieving classified and stepped utilization of energy. 2. Design theory and control technology for high-load, high-efficiency, wide operating condition speed turbine machinery. Propose the theory and method of combined regulation of moving/static components with variable speed, as well as the sliding pressure regulation and control method for speed turbine expanders. 3. Efficient compact supercritical air heat storage/heat exchanger design theory. Optimized the structure of the heat storage device, thermal properties of materials, and flow parameters, adopting a design method that enhances heat transfer processes and effectively controls heat dissipation. Market prospects and applications 1. Wind farms and solar power stations will store random and intermittent energy to meet the needs of users. 2. Nuclear power plants and power grids: Enhance the response speed of nuclear power plants and power grids, peak shaving and valley filling to meet fluctuations in the grid.