Commercial PV Systems with Economic Advantages
Through the comparative analysis of several common new energy sources such as biomass energy, water energy, wind energy and solar energy, it can be clearly seen that solar power generation has the following unique advantages.
1. Economic advantages of commercial PV systems
The economics of solar energy utilization can be seen from two aspects: one is that solar energy is inexhaustible, and there is no "tax" when receiving solar energy, and it can be used anywhere; the other is that at the current level of technological development Under the circumstances, the utilization of some solar energy is already economical. With the development of science and technology and breakthroughs in human development and utilization of solar energy technology, the economics of solar energy utilization will become more obvious. If the 20th century was the century of oil, then the 21st century is the century of renewable energy (the century of solar energy).
From the perspective of the construction cost of solar photovoltaic power stations: With the large-scale application and promotion of commercial PV systems, especially the maturity of the upstream crystalline silicon industry and photovoltaic power generation technology, the construction cost per kilowatt of solar photovoltaic power generation is getting lower and lower. The composite development and utilization of platforms such as building roofs and exterior walls also play a big role in low-cost construction. Compared with other renewable energy sources, it has the same economic advantages, and with the implementation of the national parity policy, its popularity will become wider and wider.
2. The solar energy of commercial PV systems is an inexhaustible renewable energy source
According to calculations, the total amount of solar energy reaching the earth's surface in one year is equivalent to about 1.892x10^24 tons of standard coal, which is 10,000 times the proven reserves of major energy sources in the world. The life of the sun is at least 4 billion years. Compared with human history, the time that solar energy can be continuously supplied to the earth can be said to be unlimited, which determines that the development and utilization of solar energy will be the most effective way for human beings to solve the shortage and exhaustion of conventional energy.
3. Commercial PV systems do not pollute the environment
Like clean energy such as wind energy and tidal energy, the solar energy of commercial PV systems hardly produces any pollution when it is developed and utilized. In addition to its unlimited reserves, it is an ideal alternative energy source for human beings. Because traditional fossil fuels (coal, oil and natural gas) emit a large amount of toxic and harmful substances during use, they will cause serious pollution to water, soil and the atmosphere, form greenhouse effect and acid rain, and seriously endanger human living environment and health. There is an urgent need to develop new and relatively clean alternative energy, and solar energy, as an ideal clean energy, is being paid more and more attention by countries all over the world.