[nradov]

Please explain how dramatically over building renewables will keep the lights on along the US West Coast after sunset? Where are we going to get power when there is little wind blowing and no sun shining anywhere in North America?

The reality is that the only way for renewables to provide base load is through huge amounts of storage. There are a variety of proposals for this but so far with current technology none seem to be economically viable at the scale needed.