Do appliances consume energy when they e plugged in but turned off?
Some appliances do use small amounts of power. Instant ON, televisions have the tube electron gun always warm, so it can produce an electron stream very quickly when you press the POWER button. An old toaster, with no other electronics doesn’t use any extra power, off is off. Regular old light bulb lamps don’t use any extra power. But many appliances have front panel power buttons, that are monitored by a small micro-controller on a circuit board. When it detects you pressing the button, it pulls in a large relay, and powers the rest of the appliance. This circuit board requires a power supply, which means transformer is required across the line 24×7. This operates the small power supply, micro-controller etc. To save cost, the main power supplies needed for the appliance are on, up an running, which un-necessarily consumes power. They draw more power when the appliance actually operates, but the idle currents can be substantial. However, many small appliances have wall transformers th
