A land rush in the burgeoning home energy management market.
The Prius Effect—a term that’s gained currency in sustainability circles—is shorthand for the strong link between information and behavior demonstrated by the popular Toyota hybrid. The car was among the first to provide a real-time fuel consumption gage on the dash; step hard on the gas, watch the MPG gage go down. Coast gently along and see the savings. Drivers with the gage become aware of—even obsessive about—the way their driving habits affect consumption, and by extension, cost.