A new combined cooling

heating and power system is proposed based on solar photovoltaic

wind power

ground-source heat pump and energy storage unit(WSSH-CCHP) to improve the efficient utilization of renewable energy resources and the entire system energy efficiency. The comprehensive evaluation indexes are developed by using the analytic hierarchy process to account for the system performance of energy efficiency

economy and environment. The mixed integer linear programming(MILP) algorithm is employed to perform the optimization on the selection of equipment types

capacity allocation and system operation stratagem. A case study on an energy center in Jinan city is conducted to explore the optimal performance and operation characteristics of WSSH-CCHP.The obtained results indicate that the proposed system comprehensive performance is much better than the separate production system

which provide useful information for the development of CCHP system with wind-solar-storage and heat pump and the study on its integrated optimization and operation characteristics.