might cause power problems. Whoda thunk it?
One of my standard questions to people pushing electric cars has been "Ok, so you've now got a million new electric cars on the road; where's the electricity to charge them come from? It doesn't just appear at the socket, you know. So if you pump out lots of such vehicles, where are you going to build the new power plants to take care of the new load? Because turning off your monitor isn't going to take care of it."
I've yet to hear a good answer, because the people pushing the electric roller skates don't want to build power plants. Of any kind. Anywhere.