Photovoltaic and diesel complementary power generation is a process that mainly uses photovoltaic power generation and supplements it with diesel power generation to supply power to the load and store the excess electricity in the battery. It has obvious advantages in providing stable and continuous power supply.
  In some remote mountainous areas, scenic spots and islands far from the main power grid, people often use fuel generators to provide power for the convenience of life. In recent years, with the decline in the prices of photovoltaic modules, batteries, inverters and other equipment, the cost of photovoltaic systems has been decreasing year by year, while the price of fuel has been rising year by year. The installation of photovoltaic power generation systems has begun to be the first choice. Photovoltaic power generation and fuel power generation each have their own advantages and disadvantages. Photovoltaic power generation is environmentally friendly, noise-free, and has a low cost per watt, but it requires a high initial investment and is greatly affected by weather conditions. Fuel-fired power generation has a low initial investment and is not affected by weather, but it is not environmentally friendly, with a high cost per watt and noise pollution problems, which affect the quality of life. Practical experience has shown that adopting photovoltaic power generation as the main approach, supplemented by fuel power generation, along with an appropriate energy storage system, offers better economic efficiency and practicality.