What is the advantages and disadvantages of using solar photovoltaic power generation?

Solar photovoltaic power generation process is simple, no mechanical moving parts, fuel consumption, emissions, including greenhouse gas, no matter, no noise, no pollution; Solar energy resources are widely distributed, an inexhaustible inexhaustible. Therefore, with the wind

solar photovoltaic power generation technology is simple, no mechanical moving parts, fuel consumption, not any material, including greenhouse gas emissions, no noise and pollution. Solar energy resources are widely distributed, abundant, an inexhaustible. Therefore, wind power, biomass power generation, nuclear power and compared to the new power generation technologies such as photovoltaic (pv) power generation is a sustainable development ( Rich in resources, power generation process clean) The renewable energy power generation technology, has the following main advantages. The advantage of solar energy is inexhaustible. Solar energy is inexhaustible, 6000 times more than the consumption of energy for human being. In addition, the solar energy are widely distributed on the earth, as long as there is light, you can use the photovoltaic power generation system, is not restricted by factors such as geographical and altitude. Solar energy is everywhere. Without long distance transmission, near the power supply, to avoid the long distance transmission lines caused by the loss of electric power. The conversion process is very simple photovoltaic energy conversion process is simple. It is the direct conversion of light energy into electrical energy. There is no middle process ( Such as heat energy into mechanical energy, mechanical energy is converted into electromagnetic energy, etc. ) 。 ) And mechanical movement, and there is no mechanical wear and tear. According to the thermodynamics analysis, photovoltaic power generation has the very high efficiency theory, can reach more than 80%, with great potential of technology development. Pollution-free photovoltaic itself does not use fuel, not discharge any material, including greenhouse gas and other gases, don't pollute the air, the body does not produce noise, environmental protection, not affected by the energy crisis or fuel market is not stable, is a real green environmental protection new type of renewable energy. Save water photovoltaic process does not need cooling water, can be installed on the gobi desert without water. Photovoltaic power generation can also be easily combined with construction, form the photovoltaic building integrated power generation system, do not need to occupy the land alone, can save valuable land resources. Stable and reliable photovoltaic no mechanical transmission parts, operation and maintenance is simple, stable and reliable running. As long as there is the solar cell module, photovoltaic power generation system can generate electricity. In addition, the wide application of automatic control technique can basically achieve unattended, low maintenance cost. Long service life of the photovoltaic system work stable and reliable performance, long service life, More than 30 years) 。 The service life of crystalline silicon solar cells can be up to 20 - 35 years. In the photovoltaic power generation system, as long as reasonable design, selection of suitable, the service life of the battery can reach 10 - 15 years. Simple structure of the solar cell component has simple structure, small volume, light weight, easy to transport and install. Short construction period, the photovoltaic power generation system according to the size of the power load capacity, convenient and flexible, easy to combination and extension. Deficiencies in it covers an area of great. As a result of the solar energy density low, photovoltaic power generation system of the area will be very big, every 10 kw photovoltaic area of about 100 ㎡, the average power of 100 w per square metre. With the maturity and development of photovoltaic building integrated power generation technology, a growing number of photovoltaic power generation system can make use of buildings and structures of the roof and facade, it will gradually overcome the lack of photovoltaic covers an area of large.