Solar energy has the advantages of universality, harmlessness, large reserves and long service life.

(1) Universality: The sun shines all over the earth, regardless of geographical restrictions, whether land or sea.

No matter mountains or islands, they are everywhere, which can be directly developed and utilized, which is convenient for collection without mining and transportation.

(2) Harmless: the development and utilization of solar energy will not pollute the environment, and it is one of the cleanest energy sources.

(3) Huge: The solar radiation energy reaching the earth's surface every year is equivalent to about 13 trillion tons of coal, which is the largest energy that can be developed in the world today.

(4) Long-term: According to the estimation of the rate of nuclear energy generated by the sun, the storage of hydrogen is enough to last for billions of years, and the life span of the earth is about billions of years. In this sense, it can be said that the energy of the sun is inexhaustible.

From the energy saving and emission reduction targets of various countries and the United Nations' Special Report on Renewable Energy, it is a worldwide trend to realize a high proportion of renewable energy substitution by 25, which will promote the development of solar photovoltaic power generation industry in China.

the total energy demand will reach 5 billion tons of standard coal in 23 and 5.2 billion tons in 25. renewable energy will account for 4% of the total energy demand in 25, and renewable energy will account for 6% of the electricity demand. the installed capacity of photovoltaic power generation may reach 1 billion KW. The strong support of national policies will promote the rapid and healthy development of solar photovoltaic power generation industry in China. Extended information

Prospect

As a natural energy, solar radiation shows its unique advantages because of its abundant reserves and pollution-free, and has been internationally recognized as one of the most competitive energy sources in the future.

the total amount of solar radiation received by China's land area is between 3．3×13 kJ/( m2· year) and 8.4× 1 kj/(m2 year), which is equivalent to 24× 1 million tons of standard coal. China is one of the countries with abundant solar energy resources, and its solar energy utilization prospect is very broad.

today, with the problems of population expansion and resource shortage bothering mankind, developing and utilizing solar energy and advocating the construction of green buildings fully embodies the concept of sustainable development and human returning to nature.

Baidu encyclopedia-solar power generation

Baidu encyclopedia-solar energy