Energy adviser: LEDs can lighten holiday utility bills
dim even Clark W. Griswold's enthusiasm for looping numerous strings of multicolored lights across his roof. According to a Department of Energy report, holiday lighting consumes more than six terawatt-hours a year. This is equal to the electricity consumed by a half-million homes in one month. Moving to LEDs for holiday lighting would cut this by 90 percent and reduce some of the side effects of wasted electricity.