3 ms·

Would you like to show a calculation that shows a an ev 'powered by coal' is worse than petrol. How are you defining 'powered by coal', because China's energy

• andy_ppp 3y ago
  Even if the power stations were running on petrol it would be worse because of the inherently lossy nature of transferring power to the grid, across the grid, to the battery, from the battery, to motor(s) to the wheels. I'm not saying it's bad to move to electric vehicles just that it's not the wonderful win for global warming in China (or really anywhere else) right now and for the foreseeable future.
  • pornel 3y ago
    Internal combustion engine uses only about 30-40% of the energy in gasoline, because it can't make use of the majority of the energy wasted as heat. Stationary power plants can use that heat. Electricity transfer, battery charging, and electric motors are all over 90% efficient, with overall "well to wheel" efficiency around 80%.