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Originally Posted by Number 3
Two points, when those 10,000 go on the grid at night, it is off peak hours. So shouldn't the grid be more than capable of handling that?
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My guess is that most people will plug the car in the second they get home at 6:00PM and that's still in peak hours. Everyone will be running their lights and playstations and big-screen TVs at the same time.
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The Volt does NOT charge the batteries with the ICE. It sustains the charge at the minimum level. The expectation is that it is far cheaper for the customer to charge the battery on the grid at night than by using gasoline. This is called "charge sustaining mode" on the Volt. So the electricty to run the Volt comes from the ICE, but it does not supply surplus power to recharge the battery.
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I guess they didn't get it quite right either. There should be a mode to recharge the battery (from the gas engine) to a level that you can drive the car with if the battery goes too low. Unless they can drive the car purely off the generator, this seems like a good idea.