How Much Energy Does A Laptop Computer Use. Desktop monitors during the sleep mode use between 5 to 10 watts of power while the laptop monitor uses about 2 watts. How much electricity does a TV use on standby.
Roughly 30-70 watts are used with that figure varying from model to model as some people will opt for specific features meant to enable certain draining functions. This is the sum of the average consumption per hour of the computer itself 171 W the internet modem 10 W the printer 5 W and the loudspeakers 20 W. So for prolonged usage a laptop is certainly a better option compared to a desktop from the power-saving viewpoint.
Power save mode may include a dimmer screen decreased functions and other measures that help save electricity.
1102 KWh x 028KWh 308 per week. How much electricity does a TV use on standby. This is the average estimation we took according to the Energy Department. If its idling on desktop the laptop will use 5-10W.
