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电动车的优点很多,首先电动车的能量转换效率高。有关部门提供的资料表明:从石油→到汽油→到动力它的综合利用率大约是18%;从煤→变成电→电池能量综合利用率为25%;从煤→变成价值→变成动力为10%;从煤→变成汽油→变成动力为11%;从煤→变成电能→电池→再变成动力,它的综合利用率最高,为25%。所以说电动车的能量转换效率是比较高的。第二个优点是节省石油。现在国际石油虽然又降价了,这是国际市场变化的问题,石油毕竟是一种有限的天然资源,所以从长远来看是个方向,从我国来看也是方向之一。第三个优点是污染少。汽车排出的有毒气体污染较大,电动车就没有这方面的问题,另外电动车一般是晚上充电,我们是白天电能不够用,到了晚上电又用不完,所以利用晚上的用电低峰给电池充电,对平衡电网也有好处。同时噪声也会大大减小。
The advantages of electric cars are many, first of all, the energy conversion efficiency of electric cars is high. Information provided by relevant departments shows that: from oil → gasoline → power to its comprehensive utilization rate of about 18%; from coal → electricity → battery energy utilization rate of 25%; from coal → into value → into Power is 10%; from coal → into gasoline → into power 11%; from coal → into electricity → battery → then into power, its highest comprehensive utilization rate of 25%. So that the energy conversion efficiency of electric cars is relatively high. The second advantage is saving oil. Now that international oil prices have dropped again, this is a problem of changes in the international market. After all, oil is a limited natural resource. Therefore, it is one direction in the long run and one of the directions in our country. The third advantage is less pollution. Motor vehicles emit more toxic gas pollution, electric cars there is no problem in this regard, while the electric car is generally charged at night, we are not enough electricity during the day and night to use up, so the use of low peak night electricity Battery charging is also good for balancing the power grid. At the same time the noise will be greatly reduced.