On top of those demands, everything from water heaters and furnaces to cars and smart homes use more electricity--meaning our power demands are about to explode. Gridlock on the power highway Ohio ...

Power is the energy transferred per unit time. Power is measured in watts (W), energy in joules (J) and time in seconds (s). 1 W = 1 J/s (1 watt is 1 joule per second.) Electrical power can be ...