Photovoltaic power generation (solar power) and wind power generation are both a kind of clean power supply system with good development prospects. Distributed photovoltaic power generation is more suitable for families, factories, schools, enterprises and institutions, especially suitable for areas without electricity, such as: islands, communication base stations, border posts, farmers and herdsmen (according to statistics, less than 3% of China's population has not yet used electricity).

It is mainly composed of solar photovoltaic cells (photovoltaic modules), controllers, energy storage batteries, inverters, racking and other components. However, the power generation of photovoltaic power plant is affected by external sunshine, temperature, direction and other aspects, and cannot generate power at night. At this time, the advantages of wind and solar hybrid power generation systems come into play. Because in general, cloudy and rainy days, the basic light is very poor, and the wind is better, this pair will form an excellent complementarity.

Wind and solar hybrid power generation system technology has been very mature, the operation of the better cases are: Inner Mongolia herdsmen wind and solar hybrid power generation system, remote powerless area villages wind and solar hybrid power generation system, Qinghai miniature wind and solar hybrid power generation system, Yunnan wind and solar hybrid power generation system to raise the water system, Shaanxi communications base station wind and solar hybrid power generation system, Shanghai, a sea island wind and solar hybrid power generation system.

Utilizing the complementary nature of wind energy and solar energy, a more stable output can be obtained, and the system has higher stability and reliability. Through reasonable configuration and matching, it is possible to use less or no start-up backup power, such as diesel engine generator sets, etc., and receive better economic and social benefits.