energy – Do switchable sockets left “on” use electricity if there’s nothing plugged in? – GWC Mag

With nothing plugged into the power point, there is no closed circuit, i.e. no connection, so no current flow. Simple electrical theory…switch off, no closed circuit, thus no power flow. Unless, of course, there is a light of some kind which illuminates when the switch is turned on. The light will consume a minimal amount of power. But minus an indicator light, absolutely not.