Electricity is generated by burning coal, so are electric vehicles environmentally friendly?

Why promote electric vehicles? Environmental protection is one of the very important reasons. However, many people sneer at the reason that electric vehicles are environmentally friendly: electricity is generated by burning coal. Would you tell me that electric vehicles are environmentally friendly? ? What is the truth? 1. Electricity is not all generated by burning coal. Let's look at a set of data from the National Living Resources Center: In 2018, my country's renewable energy power generation reached 1.87 trillion kilowatt-hours, accounting for 26.7% of the total power generation. Electricity is generated by burning coal. Do you tell me that electric vehicles are environmentally friendly? 2. A lot of new energy power generation was wasted. In 2018, about 69.1 billion kWh of water, 27.7 billion kWh of wind power, and 5.49 billion kWh of photovoltaic power were discarded throughout the country. Abandoned is just thrown away, wasted. 3. Why is there a large-scale abandonment of electricity? Wind power, photovoltaics, hydropower and other green energy sources are usually unstable and cannot be supplied continuously. Whether it is day or night or season, it has a significant impact on power generation. For example, at night, the photoelectricity is gone; in winter, the power of hydropower drops sharply; when the wind and waves are calm, the wind power will stop... But people's life and production must be guaranteed, and electricity must be uninterrupted for 365 days * 24 hours. People cannot turn on the air conditioner because the photoelectricity does not work at night (what an inhumane thing!) Therefore, in order to ensure the stability of power, many areas will be equipped with thermal power that meets the demand, but once thermal power is in operation, it cannot be easily shut down, it is impossible to shut down when there is wind, and turn on when there is no wind, let alone sunshine. Turn it off when it is time, and turn it on when there is insufficient sunlight...So a lot of new energy is wasted. Not only new energy, even thermal power, a considerable part of the electric energy is wasted during the night trough... Therefore, our protagonist is here: electric cars. ? Four. How do electric vehicles achieve environmental protection? 1. As mentioned above, the power generation of renewable energy exceeds a quarter. Even without considering any other factors, considering the power source structure alone, electric vehicles have reduced pollution by a quarter. . 2. Electric vehicles can absorb more valley electricity. Electric vehicle owners mainly use them during the day and charge at home at night, and most of them can make an appointment for the charging time. After the valley power section arrives, the formal charging process will begin. In this way, the waste of valley electricity can be greatly reduced and the peak and valley balance can be achieved. The role of power-a lot of electric energy that would have been wasted is just used by electric vehicles, especially in areas rich in wind and hydropower. This electric energy cannot be used at night, and electric vehicles are equivalent to 'pick up' energy. Some friends may have the illusion: these are all based on private charging piles, how many people do not have private charging piles at all, they will still charge during the day, increasing the load on the grid...Speaking of which, let us take a look. According to the data released by the China Electric Charging Infrastructure Promotion Alliance, as of January 2019, about 743,000 vehicles have been sampled through the vehicle pile-related information of the member companies in the alliance, of which 511,000 are equipped with charging facilities. Taiwan, the overall construction rate of 68.7%. Note that it is the allocation rate, not the simple delivery rate. This means that nearly 70% of electric car owners have private charging stations, and most cars still play an environmental role in balancing peaks and valleys. 3. Let's talk about how to realize environmental protection for those cars without private charging piles. At present, most public charging piles are sourced from the national grid, which means that the energy structure of the grid determines the environmental protection degree of charging piles. As mentioned earlier, one-fourth of the current electricity is clean energy. However, only a quarter of environmental protection can be achieved, which is not enough for some companies. Such as Tesla, such as BAIC New Energy. Tesla’s energy storage projects have been carried out in many countries around the world. The collected solar energy is stored in a battery energy storage system to achieve 24-hour uninterrupted power supply, whether it is electric car charging or household and business life production electricity. , Can achieve clean energy. ? BAIC New Energy's Optimus Prime plan is similar. The protagonist of the 'Optimus Prime Project' is the optical energy storage swap station. It has an energy storage system that can use low-cost valley electricity at night to complete electricity storage and charge electric vehicles during the day, so as to reduce the waste of valley electricity; in addition, It can also be combined with the photovoltaic power generation system to solve the problem of unstable and unsustainable photovoltaic power-power generation during the day, combined with the energy storage system to have the ability to supply power for 24 hours, which is consistent with Tesla's energy storage project concept. Electricity is generated by burning coal. Do you tell me that electric vehicles are environmentally friendly? Electricity is generated by burning coal. Do you tell me that electric vehicles are environmentally friendly? ? Both Tesla's energy storage and Optimus Prime have another major mission: to absorb a large number of retired electric vehicle batteries. The life cycle of lithium batteries is actually very long. The standard for the life of lithium batteries in electric vehicles is: when the available capacity of the battery pack is less than 80% of its designed rated capacity, the battery pack is considered to have completed its mission and can be eliminated. But in fact, batteries still have a very high usable value, and energy storage systems are just a good place for these retired batteries. In the early years, the design of battery packs was not standardized, and the secondary cost required to deal with retired batteries was relatively high. However, as people's understanding of this issue deepened, the battery packs of many models in the past two years were designed with decommissioning in mind. The later energy storage uses can be disassembled from the car and directly installed into the energy storage system. The later workload is greatly reduced, which also makes people see a very bright prospect. Friends of electric car owners and prospective car owners, don't be induced by internet sprays, and don't believe the rumors that their electric cars are not environmentally friendly. Some people just fear that the world will not be chaotic. Isn't the vision of the decision-makers as good as each keyboard man?