Quote:
Originally Posted by biker1
I believe you have missed the point. The issue is not the use of fossil fuels. The point is that electric vehicles use much less energy than gas powered vehicles - much less even when you account for the additional energy needed to manufacture them when compared to gas cars. Burning gas in a car is very inefficient. You are better off burning fossil fuels to make electricity to power electric cars since the total energy use is much less. Aircraft and cargo ships will be probably continue to burn fossil fuels for the foreseeable future. For large aircraft, there is a significant energy density issue that won't be solved anytime soon. We will never totally eliminate the use of fossil fuels but we can dramatically reduce their usage. This has rather significant geopolitical implications.
|
Although electric electric motors are more efficient than internal combustion engines ( 80% vs 20%) the energy density of a pound of gasoline is 10 times the energy density of the best Tesla battery.