Abstract: A novel energy storage and electricity production system integrated with wind energy and solar energy was proposed.The system utilizes complementarily wind energy and solar energy,and improves their intermittent and fluctuant characteristics by using compressed air energy storage system.The system realizes multifunctional integration of energy storage and electricity production.On the basis of energy efficiency,exergy efficiency and energy storage efficiency,thermodynamic characteristic and energy storage characteristic were analyzed thoroughly,and vary behaviour of the system performance with respect to turbine’s initial pressure,initial temperature,turbine’s efficiency and compressor’s efficiency were revealed.The performance analysis and comparison were conducted when the system adopts constant-volume air storage tank and constant-pressure air storage tank,and the results show that thermodynamic performance and energy storage performance will be upgraded if constant-pressure air storage tank is adopted.The research provides an important reference for renewable energy and large-scale energy storage development.