Wind power in action

Whenever you hear about the miracles of wind power, always keep in mind one thing above all: because the wind blows erratically, and sometimes doesn’t blow at all, wind power is inherently unreliable. As I wrote in a recent piece on “green energy,”

where coal, oil, and natural gas can be burned whenever power is needed, at the exact quantity needed, wind and sunlight can be harnessed only when the weather cooperates–and electricity can’t be stored [in significant quantities] for a rainy day. Thus, they are always used as supplemental, not primary, sources of power on electric grids.

An engineer friend of mine recently witnessed this fact firsthand while driving east of San Francisco. He sent me this still picture that is as good as a movie–because the windmills were not moving. As he wrote: “Good thing Californians have reliable coal and gas-fired power on the grid elsewhere; Gaia did not see fit to bless us with breeze-based power today. Hundreds of them, dead still.”