Photo-thermal, hydraulic pressure stabilization and compressed air composite energy storage system and energy storage and release method

The invention discloses a photo-thermal, hydraulic pressure stabilization and compressed air composite energy storage system and an energy storage and release method. The system comprises a water storage and release mechanism and a compressed air energy storage mechanism. The compressed air energy storage mechanism is provided with an air compressor, a motor, a generator and a gas-water sharing bin used for storing high-pressure gas. The water storage and drainage mechanism comprises a high-level pool and a circulating water pump; the high-level water tank is connected with the bottom of the air-water sharing bin through a water main pipe, the first water electromagnetic valve is connected with an electric control device, and the electric control device is connected with the water tank water level sensor, the motor, the air compressor and the circulating water pump. The invention discloses a corresponding energy storage and release method. Through respective energy storage and linkage energy release of water