Is the electric vehicle not environmentally friendly?

Is the electric vehicle not environmentally friendly?

The environmental protection of energy resources has been valued by every country in the world. Our country pursues the energy conservation policy of “saving, clean and safe”, promotes the production and consumption revolution of energy resources, continuously increases the proportion of clean energy consumption, and reduces carbon dioxide emissions. reduce environmental pollution. In the coal industry production, promote the safe green development and clean and efficient use of coal. Coal-fired power generation enterprises have comprehensively promoted the completion of dust removal, desulfurization and denitrification, and promoted the improvement of air quality. In the 2020, the upper limit of fuel consumption of less than 5 liters per 100 kilometers in the automobile industry has entered the countdown, and electric vehicles are being vigorously promoted by the country.

Coal is known as black gold, industrial food, and it is one of the main energy sources used worldwide since the eighteenth century. Since the beginning of the 21st century, the important position of coal has been replaced by oil, but for a long period of time, due to the depletion of oil, it will inevitably decline, and the huge reserves of coal, coupled with the rapid development of science and technology. The new technologies for environmentally friendly production and application in the coal industry are becoming more mature and widely used. Coal is still one of the irreplaceable major energy sources in our production and life for a long time now and in the future.

"Enriched coal, lean oil, less gas" is a distinctive feature of China's energy resources. China's total coal resources are 5.9 trillion tons, accounting for 94% of the total primary energy resources, while oil and natural gas resources only account for 6%, and its production is difficult to increase, and its dependence on foreign countries is high. China's coal reserves are far greater than China's proven oil reserves, coal production is far greater than oil production, and the gap between China's coal production and oil production has gradually widened in recent years. According to the statistics of the National Energy Administration, as of the end of 2015, the total coal mine size of the country was 5.7 billion tons, and the raw coal output in 2015 reached 3.7 billion tons. In terms of capacity distribution, 27% of China's coal production capacity is distributed in Shanxi, with a total of 1.53 billion tons. In 2015, China's coal consumption accounted for 64.0% of total energy consumption. The consumption of clean energy such as hydropower, wind power, nuclear power, natural gas and solar energy accounted for 17.9% of total energy consumption. With the gradual implementation of the environmental protection concept, the energy structure is being adjusted, and the share of coal in China's energy consumption will drop from the current 60% to the lower level in the future.

In the first half of 2016, China's raw coal output reached 1.63 billion tons, the national power generation reached 275.49 billion kWh, coal-fired power generation accounted for 78%, hydropower accounted for more than 20 points, and other nuclear power, wind power, solar power and other power generation accounted for a small proportion. The coal industry has vigorously promoted the washing and processing of refined coal products, providing environmentally-friendly and high-quality refined coal for power companies and other industries, and has made promising steps in environmental protection. Coal-fired power generation accounts for three-quarters of China's electricity production. It is considered that coal-fired power generation is much more polluted than oil-to-natural gas power generation. It is natural to doubt whether the promotion of electric vehicles is environmentally friendly.

Due to the promotion and application of advanced technologies, China's coal-fired power generation has made great progress. Some media reported that the coal-fired generating units in active service at the end of 2016 have all completed dust removal, desulfurization and denitrification reforms. At that time, “burning coal can also be cleaned like burning natural gas”, which can promote the improvement of air quality. The concentration of the main air pollution emission will reach the gas generator set emission limit, that is, under the condition of 6% of the reference oxygen content, the emission concentrations of the three pollutants of soot, sulfur dioxide and nitrogen oxides are not higher than 10 mg/m3 and 35 mg/ respectively. Cubic meters, 50 mg / cubic meter. Ultra-low emissions control the emission of pollutants from coal-fired power plants to gas units even lower by adopting deep pollutant removal technology. After the ultra-low emission transformation, the total cost of electricity sales from coal-fired power generation is less than half that of gas-fired power generation, and coal-fired power generation will still maintain a high proportion for a long time to come.

China is mainly based on coal-fired power generation. Because electric vehicles use electricity, there is a saying that electric vehicles are not environmentally friendly. Then someone calculated the average calorific value of coal-carbon products, calculated the carbon dioxide content per kWh of coal-fired power generation, calculated the electricity consumption per kWh of electric vehicles, and concluded that it is like Tesla. The electric vehicle consumes about 20 degrees per 100 kilometers, and its carbon emissions in China is about 175g/km, which is higher than 150 or 160g of conventional fuel vehicles. Therefore, in China, Tesla is not an energy-saving and environmentally-friendly vehicle, and it is considered that electric vehicles are not environmentally friendly than conventional fuel vehicles.

We should look at the environmental issues of coal, electricity and electric vehicles from the perspective of development. Coal production technology and coal-fired power generation technology are improving, and the carbon dioxide produced per kilowatt-hour is also decreasing year by year. The power consumption per kWh of electric vehicles is also declining. More importantly, the proportion of clean energy will gradually increase. The environmental characteristics of electric vehicles will be displayed, whether from an economic point of view, from the perspective of energy security, or From the perspective of environmental protection, electric vehicles are very suitable for our national conditions and should be promoted and used.

Another way of saying that the lithium battery of electric vehicles will be scrapped in a few years, a large number of scrapped batteries will bring pollution to the environment. This issue should be highly valued by us. These should not be directly related to the development and use of electric vehicles. With the application of electric vehicle energy storage technology and the application of energy Internet, as well as the environmental protection of waste lithium batteries, the electric vehicle industry will usher in a faster development.

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