Exactly! Renewables advocates contradict themselves.

Position 1. Night time charging: in the race to wean off oil, we're going to move to Electric Vehicles to replace petroleum (gasoline) use in the light vehicle market. Family cars, light delivery trucks, and even garbage trucks and city buses can all be replaced with EV's. (That's the petroleum / gasoline *half* of the oil replaced, and the other diesel half may have to be replaced with synthetic diesel, but that's another story). But how many new power stations will be required to charge the light half of our car and truck fleet? America's NREL studied it, and the answer is that we could charge 86% of all light cars and trucks on today's grid without building a new power station or expanding the grid. How? Turn the power plants up to full, and smart charging overnight. That is, about half these light vehicles charge overnight. Page 10 of this PDF http://energyenvironment.pnnl.gov/ei/pdf/PHEV_Feasibility_Analysis_Part1.pdf

Position 2. We’re NOT going to really do anything at night because… who needs power at night? Amory Lovins says the requirement for baseload electric power is a myth, and there’s no real need for power at night. Except for running fridges and hospitals and night transport and some industries and replacing half our petroleum car oil on the existing grid with night time electricity according to the study above! So if the huge spare night-time capacity of a baseload grid can only charge half the light vehicle fleet, then no baseload at night means we must charge the whole light vehicle fleet during the day. Just how many times over are we going to build out the grid again? How are we going to charge all those EV’s? Are we going to double the grid? Triple it? No. Watch Lovin's ‘efficiency gains’. We’re going to halve our electricity supply according to Amory. While replacing oil. Pull the other one, it plains jingle bells. https://www.youtube.com/watch?v=MsgrahFln0s

The real answer? NUCLEAR, and then we can charge most of our cars with half of them charging overnight.