Solar energy is one of the energy we can use. We sometimes use it for heating or drying things, etc. It is our natural energy source. There are many places where solar energy can be used, so when it comes to refrigerator cooling, solar energy is no exception. Like Solar DC Freezer is the representative of solar cooling.

The use of solar energy for refrigeration is an important part of solar energy utilization. Solar cooling and refrigeration also use solar energy as an energy source to generate steam or hot water to drive ordinary refrigerators. It is a field with great development prospects and a hot spot in current refrigeration technology research.

One is to use solar collectors to realize light-to-heat conversion and heat cooling; the other is to use photoelectric converters to realize photoelectric conversion and electric cooling. The latter is to first convert solar energy into electric energy and then use electricity for cooling, such as photovoltaic and thermoelectric cooling. However, due to its high cost, there are few research applications at present. There are many studies and applications of photothermal refrigeration methods such as absorption, adsorption, and ejection. Among them, absorption and ejection refrigeration have entered the application stage, and adsorption is still in the research stage.

When solar cooling and refrigeration technology is fully popularized, China freezer industry may be at a new stage.