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Plus, let's not forget that while electric vehicles may seem completely emissions free, you've simply moved the fossil fuel burning from your engine to a power plant. We can't complain about reducing our energy use (because we're using too much for the system) and then add all our cars. And the reason our power grid is so stressed is that we don't want to add power plants because they're not green.
Phasing inefficient lights to CFLs, phasing in more efficient appliances, habbits, etc is all great. It will help our present power grid cope with increased demand (from population) over the next few years without adding more plants. Or we can reduce our use, creating room for additional demand (cars), but we would still need to add more capacity. And it seems our present focus is on phasing out fossil fuel plants and replacing them with renewable resource plants. I don't see both happening at once, although both paths are very important.
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