The regulatory body that oversees the nation's power grid cast a bit of a chill over the coming warm months when, in mid-May, it cautioned that the country might not generate enough electric power to meet demand. Coming after multiple warnings from regulators, grid operators, and industry experts that enthusiasm for retiring old-school "dirty" generating capacity is outstripping the ability of renewable sources to fill the gap, the announcement is a heads-up to Americans that they may want to make back-up plans for a power grid growing increasingly unreliable. It's also a reminder that green ideology is no substitute for the ability to flip a switch and have the lights come on.
