"power" . "mains electricity" . . . "domestic power" . "Electricity" . "electricity supply" . "household AC electricity" . "General-purpose alternating current" . "grid power" . "120/240 VAC mains" . "220v" . . "electricity system" . "mains power" . "AC power" . . "household electrical outlets" . "115-volt system" . "wall-powered" . . "electrical supply" . . "mains (household) electricity" . "electricity from the grid" . "Mains electricity" . . "power supply" . "mains voltage" . "line-powered" . "electrical power" . "Mains power" . "power grid" . "mains (household AC)" . . "electrified" . "mains AC" . "domestic mains" . "mains-powered" . "120 volts" . "electricity" . "Mains" . "Mains electricity" . "the electricity grid" . "AC house current" . "AC 120/230 V" . . "Mains_electricity" . . "mains powered" . "normal mains electricity" . . "supply points" . "voltage" . "Mains electricity#Voltage levels" . . "mains" . "house current" . . "line voltage" . "wired for electricity" . "mains supplies" . "external hookup" . "Power line" . "standard 120 volt AC" . "household electricity" . "fixed mains" . "utility mains" . "AC mains" . . "Mains electricity#History" . "wall plug" . "mains supply" . . "as in Britain" . "electrical service" . . "electrical grid" . "household power" . "hydro" . "electric outlet" .