Traditional energy is limited both in the world and in China. China's primary energy reserves are far below the world average, accounting for about 10% of the world's total reserves. Solar energy is an inexhaustible and renewable energy source, characterized by sufficient cleanliness, absolute safety, relative popularity, long service life, no maintenance required, abundant resources, and enormous economic potential. It plays an important role in long-term energy strategies. Compared with ordinary thermal power generation systems, the advantages of solar power generation are mainly reflected in the following aspects:

(1) There is no risk of fatigue. Resources are inexhaustible, and the solar energy shining on Earth is 6000 times greater than the energy currently consumed by humans. Moreover, it is widely distributed on Earth. As long as there is light, photovoltaic power generation systems can be used without being limited by factors such as location and altitude.

(2) Safe and reliable, noise free, pollution-free, absolutely clean (pollution-free). The energy conversion process of photovoltaic power generation is very simple, that is, photons are directly converted into electrons. There are no intermediate processes (such as converting thermal energy into mechanical energy, converting mechanical energy into electromagnetic energy, etc.) and mechanical motion, and there is no mechanical wear. According to thermodynamic analysis, photovoltaic power generation has a high theoretical power generation efficiency, reaching over 80%, and has enormous potential for technological development.

(3) Unrestricted by the geographical distribution of resources, building roofs can be utilized; For example, areas without electricity and areas with complex terrain. The power generation process does not require cooling water and can be installed in desert areas without water. It can also be easily integrated with buildings to form an integrated building power generation system, without the need for separate land occupation, which can save valuable land resources.

(4) Local power generation and supply can be achieved without consuming fuel or installing transmission lines.

(5) High energy quality, no mechanical transmission components, simple operation and maintenance, stable and reliable operation. A solar power generation system can generate electricity as long as there are battery components, and with the widespread application of automatic control technology, it can basically achieve unmanned operation and low maintenance costs.

(6) Easy for users to accept. Stable and reliable work performance, with a long service life (over 30 years). The lifespan of crystalline solar cells can reach 20 to 35 years. As long as the design is reasonable and the shape is appropriate, the battery life of solar power generation can be as long as 10-15 years.

(7) Short construction period and short energy collection time. Simple structure, small size, light weight, easy to transport and install. The construction period is short, and the capacity can be determined according to the size of the electricity load, which is convenient, flexible, easy to combine and expand.

In recent years, solar energy utilization has become one of the rapidly growing industries in the field of renewable energy. This is mainly due to technological advancements and the decline in prices of solar panels. It is predicted that by the end of 2019, the scale of solar power generation in China will reach 200 million kilowatts, with enormous potential. With active and stable policy support, it will attract more strategic investors.