Originally Posted by
Dick Smith
What all this shows is the extraordinary energy density in a litre of fossil fuel.
Unfortunately the alternative energy movement constantly glosses over this fact.
Does someone have a figure ? Is it 100 times more energy density compared to batteries. Or is it more than that?
There is no point in comparing energy density of Batteries compared to liquid fuels,(in cars anyway) as electric motors are 5+ times more efficient,
yes, i own 2 electric vehicles..
one can travel 600Km on 100Kw of energy. the other 100Km on 15Kwh
1 Ltr of petrol/avgas has about 10Kwh of energy, so a comparable car running on petrol will use about 10Ltrs to go 100Km. so it needs 600Kwh of energy to go the same distance that 100Kwh in an electric car will take it.
you simply dont need to carry the same energy density to get the same output.