Comment Re:Article ignores variability (Score 1) 610
...when wind varies you need to have other types of power (such as natural gas) ready to pick up the slack.
You're half correct. If you'll recall your demand curve from Econ 101, when demand exceeds supply, there are two ways to reach an equilibrium. Your suggestion, increase supply, is one of those ways. The other, of course, is to reduce demand, as eBay does to prevent too many people from winning the same auction.