What are the unique features of solar energy?

1) Universal: The sun shines on the earth, regardless of the land or sea, whether it is a mountain or an island, it can be developed and utilized directly, and it does not need to be mined and transported.

2) Harmless: The development and utilization of solar energy will not pollute the environment. It is one of the cleanest energy sources. This is extremely valuable today when environmental pollution is getting worse.

3) Huge: The annual solar radiation energy reaching the surface of the earth is equivalent to about 130 trillion tons of standard coal, the total amount of which is the largest energy that can be developed in the world today.

4) Long-term: According to the current nuclear energy rate generated by the sun, the storage of hydrogen is enough to last for tens of billions of years, and the life of the earth is also about several billion years. In this sense, it can be said that the energy of the sun is used. Inexhaustible.