>>1128891I wonder how much juice those all those solar panels provide. I mean a EV sucks up alot of power. The new tesla roadster has a battery of 720 MJ. A single typical rooftop solar panel can provide about maybe 200-400 watts, at peak sunlight. That's horrible, even if you scale it up. Even at say, 10 kilowatts, which is a decent sized farm, more then you would be able to put on your house, you need 20 hours to charge that 720 MJ battery. Not to mention the inefficiency involved with converting the power into a DC current. And that's one car, when there will probably be hundreds in the future. And they want to be charged within minutes to 1-2 hours. Sure they help, but even if you cover every building and parking lot, it's like a drop in a cup, the charging stations will still have to depend heavily on the grid.
Of course this fails to mention the massive MW solar farms that will also be connected the grid. And while it's a drop in the bucket, everything helps and in the long run, this will still save tons of traditional fossil fuels over their 20 year long lifespan.
