Canary Media: This available device could free up gigawatts of power for the US grid

Gigawatts of power are already available for the taking across the U.S. economy in the form of wasted energy from an unexpected source: motors. Some 50 million electric motors… (often) use far more energy than they actually need to keep America’s machines humming. Companies can install devices known as variable frequency drives, or VFDs, to make motors run super efficiently.