[embro]

This has been proven false back in like 2008. Even if electric cars were to run off coal plants, they would still be more efficient because the plants can capture and reuse heat with boilers.

That being said, coal has to go anyway. I run my electric car from 98% hydro power and 2% wind power and I pay 6,9 cents per kWh, and that's Canadian money, pretty cheap.