Solar photovoltaic power generation process is simple, no mechanical rotating parts, no fuel consumption, no emissions including greenhouse gases
Any substance, no noise, no pollution, solar energy resources are widely distributed and inexhaustible. So, with the wind
Compared with new power generation technologies such as power generation and biomass power generation, photovoltaic power generation is one of the most desirable characteristics for sustainable development
Abundant resources and the cleanest power generation process) of renewable energy generation technology, its main advantages are as follows.
(1) Solar energy resources are inexhaustible, and the solar energy irradiated to the earth is larger than the energy currently consumed by mankind
6 000 times, and solar energy is widely distributed on the earth, as long as there is light can use photovoltaic power generation system, no
Limited by geographical, altitude and other factors.
(2) Solar energy resources are available everywhere, can be nearby power generation, power supply, do not have to long-distance transmission, to avoid long-distance transmission lines
Loss of electrical energy.
(3) Photovoltaic power generation is a direct conversion from photons to electrons, without an intermediate process (such as thermal energy conversion to mechanical energy, mechanical energy
Convert to electromagnetic energy, etc.) and mechanical movement, there is no mechanical wear. According to thermodynamic analysis, the voltage generation has a high
The theoretical power generation efficiency can reach more than 80%, and the technical development potential is large.
(4) Photovoltaic power generation itself does not use fuel, does not emit any substances including greenhouse gases and other exhaust gases, does not pollute the air,
It does not produce noise, is environmentally friendly, will not suffer from the impact of energy crises or fuel market instability, and is truly green
Color environmental protection renewable new energy.
(5) The photovoltaic power generation process does not require cooling water, and the power generation device can be installed in the desert and the Gobi without water. Photovoltaic power generation
It can also be easily combined with buildings to form a photovoltaic building integrated power generation system, which does not need to occupy a separate area and can be saved
Valuable land resources.
(6) Photovoltaic power generation without mechanical transmission parts, simple operation and maintenance, stable and reliable operation. A set of photovoltaic power generation system only
There are solar cell components can generate electricity, coupled with the widespread use of automatic control technology, basically can achieve unattended maintenance
Low cost.
(7) The photovoltaic power generation system has stable and reliable performance, long service life (more than 30 years), and the life of crystalline silicon solar cells
It can last 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 long
10 to 15 years.
(8) Solar cell components are simple in structure, small in size, light in weight, and easy to transport and install. Photovoltaic power generation system construction cycle
Short, and according to the power load capacity can be large or small, convenient and flexible, easy to combine and expand. In addition, whether Germany,
Japan's photovoltaic "roof plan" power generation system, or as the future of China's solar photovoltaic power generation application mainstream photovoltaic construction
Building integrated (BIPV) power generation system, "golden roof" power generation system, etc., in addition to the above advantages, but also have
Under the superiority.
(1) Do not occupy the city's expensive land resources.
(2) It can directly replace traditional wall and roof materials.
(3) Local power generation is used locally, without storage batteries.
(4) If connected to the power grid, the surplus power can be lost to the power grid.
(5) Power generation in the peak period of grid power supply, reducing the city's expensive peak power supply load.
(6) No transmission lines are required to reduce transmission costs.
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