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Solar photovoltaic power generation highlights the advantages of energy saving and environmental protection

At present, the global energy supply situation is becoming increasingly tense, global warming is also a serious threat to economic development and human living environment, the world is seeking new energy alternative strategy, in order to achieve sustainable development, and in the future development of the advantages status. The deterioration of the environmental situation is also warning, no longer increase the share of clean energy and renewable energy, Chinas economic development will also be threatened. Improve the utilization rate of renewable energy, the development of solar power is to improve the ecological and effective way to protect the environment.
Solar photovoltaic power generation with its clean, steady, safe and other significant advantages, become the focus of attention in the development of solar energy industry occupies an important position. The use of Chinas desert resources to develop photovoltaic power plants, can make full use of land resources, is turning waste into treasure, to protect Chinas energy supply strategy security, significantly reduce emissions and ensure sustainable development of major strategic initiatives.
The large-scale application of photovoltaic power generation in the desert can also effectively reduce the surface temperature and reduce the evaporation of water. Photovoltaic power station can also be used for water supply irrigation, transformation wasteland, so that desert change oasis. Desert transformation can also bring direct economic benefits and create employment opportunities to achieve the sustainable development of electricity, ecological sustainable development and social sustainable development.
After the completion of large-scale grid-connected photovoltaic power plant, according to the legal reasonable price of electricity, through the sale of electricity can achieve considerable economic benefits. In addition, its social benefits can not be ignored: through the establishment of megawatt-class grid-connected photovoltaic power plants, can ease the power shortage situation, without fuel consumption, do not pollute the environment under the premise can also improve the quality of power supply, adjust the peak power load, Stable supply. In addition, the development of solar energy industry is also conducive to increasing employment opportunities, increase taxes.
We can take a 10MWp photovoltaic power generation project as an example, calculate the power plants energy efficiency and environmental benefits.
The energy efficiency of PV plants can be measured by the amount of standard coal. Usually, with coal-fired thermal power generating units, each power generation 1kWh need to consume 340.6g of standard coal. If the construction of a 10MWp grid-connected photovoltaic power plant to replace the same size coal-fired power station, the effective use of hours is equal to 1475 hours, the annual power generation 14750MWh, will save 5024 tons of standard coal.
The environmental benefits of photovoltaic power plants are measured by the amount of greenhouse gas emission reductions. With coal-fired thermal power generating units, in addition to generating carbon dioxide, but also produce methane (CH4), nitrous oxide (N2O) and other greenhouse gases. The effect of these gases on the greenhouse effect is more than that of carbon dioxide. If the quantification is compared, 1 tonne of methane or nitrous oxide is equivalent to 21 tons of carbon dioxide. If the coal-fired thermal power generating units, each generating 1MWh, will discharge the equivalent of 1.069 tons of carbon dioxide greenhouse gas, and with a 10MWp grid-connected photovoltaic power plant to replace coal-fired power stations, the annual reduction of greenhouse gas will reach 15768 tons ( In terms of carbon dioxide).