by: Chris Nelder
"Defenders of the electric grid status quo have long argued that always-on baseload power generators like coal and nuclear plants are essential, and that variable renewables like wind and solar will remain bit players in power generation.
They argue this for several reasons: The grid isn’t designed to accommodate them. They’re too expensive. Or they aren’t reliable enough, so they require 100% backup from conventional power plants at all times. An essay by former utility CEO Charles Bayless in the September 2010 issue of the Edison Electric Institute’s Electric Perspectives magazine details the utility view of these issues nicely.
But one by one, those arguments are being knocked down."