Abstract: With the rapid development of society, the problems of the increasing energy consumption and the use of excessive energy, directly bring is worsening of environment. The worsened Environment and the lacked energy was given us some serious challenges and pressure in the sustainable development of society. The new type and clean energy become an effective way to meet the challenges and to relieve stress. Without doubt, the solar energy is one of the most promising in the green energy. This paper focuses on a new type of photovoltaic inverter heat pump water heater, and brief analysis of its energy saving effect.

Key words: Photovoltaic, Inverter heat pump, Water heater, New energy