Suppose I have a TV plugged in and it is connected to a power outlet which is also turned on. This appliance is "turned on" and on "stand by mode". It consumes energy I think just to light up that little red LED to tell you it's switched on (does it use electricity for anything else?)
Now suppose I have a laptop or mobile charger that is plugged into a power outlet that is permanently turned on. If this charger is just sitting there without being plugged into anything .... is it consuming energy? Is this considered to be another "stand by device" which consumes energy for me? Will this impact my power bills?
In the extreme case: if a power outlet is turned on, is this consuming any energy?