By leaving electrical appliances on standby, does it reduce the warm-up time, and save energy?
Leaving an appliance in standby mode does often reduce the start up time, however it doesn’t reduce energy. Our advice is to turn off standby power where possible. Many appliances use a microprocessor which is effectively a computer, when it is switched on the computer takes time to switch on. By leaving an appliance in standby the microprocessor is left running ready to start at anytime, however the time saving is only a matter of seconds. Studies have shown that some appliances that are seldomly used, such as microwave ovens, use more energy in standby than they do cooking food.