Quote:
Originally Posted by DeusExMachina  Biggest problem with electric cars is the energy per weight ratio.
A car battery on a full charge for a 4 door sedan typically has about 4 million joules. Which is the same energy as half a gallon of gas. Half a gallon of gas is about 5 pounds and a car battery is about 50.
A car battery probably can't output more than 6000 watts which is 8.5 horsepower. You would need at least 10 of these batteries working in parallel just to get a small car moving. |
Indeed.
And not only this but hydrogen-powered vehicles are still plagued with tons of problems atm (mainly those involving the transportation of hydrogen fuel which is extremely volatile). However, I think BMW is working round-the-clock to try and fix these errant problems.........though it will take a while. Granted, we should see ever increasing improvements over each generation esp. with their upcoming Hydrogen 7 concept using the new-gen BMW 7 series (codenamed F01/F02).
