Benefits of Solar PV

The process of solar photovoltaic power generation is simple, with no mechanical rotating parts, no fuel consumption, no emission of any substance including greenhouse gases, no noise and no pollution; solar energy resources are widely distributed and inexhaustible. Therefore, compared with wind power and biomass power generation and other new power generation technologies, photovoltaic power generation is a renewable energy power generation technology with the most sustainable development characteristics (the most abundant resources and the cleanest power generation process), and its main advantages are as follows.
(1) Solar energy resources are inexhaustible, the solar energy irradiated to the earth is nearly 6,000 times larger than the energy currently consumed by human beings, and solar energy is widely distributed on the earth, as long as there is light in the place where the photovoltaic power generation system can be used, without the limitation of geography, altitude and other factors.
(2) Although on the earth’s surface, different dimensions, differences in climatic conditions and other factors will cause uneven solar radiation, but because solar energy resources are available everywhere, can be solved close to the power generation, power supply and electricity, do not have to be transported over long distances, to avoid long-distance transmission line investment and loss of electrical energy.
(3) Photovoltaic power generation is directly from photon to electron conversion, there is no intermediate process (such as thermal energy converted to mechanical energy, mechanical energy converted to electromagnetic energy, etc.) and mechanical movement, there is no mechanical wear and tear. According to thermodynamic analysis, photovoltaic power generation has a high theoretical power generation efficiency, up to 80% or more, technology development potential.
(4) Photovoltaic power generation itself does not use fuel, the emission of greenhouse gases and other exhaust substances is almost zero, does not produce noise, and will not pollute the air and water, friendly to the environment. Will not suffer from the energy crisis or fuel market instability of the impact of solar energy is a real green renewable energy.

(5) The photovoltaic power generation process does not require cooling water, and the power generation device can be installed in deserts and the Gobi where there is no water. Photovoltaic power generation can also be easily combined with the roofs and walls of buildings to form roof distributed or photovoltaic building-integrated power generation systems, which do not need to occupy land separately and can save valuable land resources.
(6) Photovoltaic power generation has no mechanical transmission parts, simple operation and maintenance, and stable and reliable operation. A set of photovoltaic power generation system can generate electricity as long as there is the sun, battery components, coupled with the widespread adoption of automatic control technology, basically can realize unattended, low maintenance costs.
(7) photovoltaic power generation system performance is stable and reliable, long service life (more than 30 years), crystalline silicon solar cell life can be as long as 25 to 35 years. In the photovoltaic power generation system, as long as the design is reasonable and the selection is appropriate, the life of the battery can also be as long as 10 to 15 years.
(8) The structure of solar cell module is simple, small in size and light in weight, which is easy for transportation and installation. Photovoltaic power generation system construction cycle is short, and according to the power load capacity can be large or small, convenient and flexible, very easy to combine, expansion.

In addition, the most widely used in recent years is the distributed photovoltaic power generation system constructed by utilizing the roofs of various buildings and agricultural facilities as well as the roofs of family houses, which, in addition to the same advantages as those mentioned above, also has the following superiority.
(1) Distributed photovoltaic power generation basically does not take up land resources, and can be used to generate and supply power in the vicinity, without or with fewer transmission lines, which reduces transmission costs. PV modules can also directly replace traditional wall and roof materials.
(2) Distributed photovoltaic power generation system is power generation and power coexistence when connected to the distribution grid. In the grid power supply is in the peak period of power generation, can effectively play the role of peak leveling, cut down the expensive peak power supply load in the city, can to a certain extent alleviate the tension of power consumption in local areas.