Computer Energy Consumption In Watts

But as you ve probably gathered from the other replies the extent of which can be measured may be limited by hardware software or requ.

Computer energy consumption in watts.

The first step in calculating your energy consumption is to figure out how many watts each device uses per day. To answer the op more literally yes there is software that can monitor the power consumption of a computer. The computer power supply is not an accurate way to measure energy use because the power supply output is advertised as the max amount of watts a power supply can output. The energy e in kilowatt hours kwh per day is equal to the power p in watts w times number of usage hours per day t divided by 1000 watts per kilowatt.

The electricity usage of a computer also heavily depends on the video card a high end video card can use a lot of power and having more than one sli or crossfire mode. Most laptop computers use about 15 60 watts far less than desktops. Ssd energy usage varies more widely than conventional hard drive power usage because ssds use far less energy when idle due to the lack of a power hungry spindle motor. It can be used to select a proper power supply unit for your system.

Solid state drive ssd power consumption. 5 watts to 6 8 watts. With most devices you can look at the label to see how much energy they use but that doesn t work so well with computers because the label gives the theoretical maximum not the typical amount used. Most pcs come with power saving features that lower your energy usage when the.

What s more the listed computer wattages represent the maximum levels so the actual energy consumption of your laptop is likely to be lower than the number on the label. A computer whose label or power supply says 300 watts might only use about 70. Conventional hard drive power consumption. Just multiply your appliance s wattage by the number of hours you use it in a day.

When i used joulemeter s manual approach to estimate the energy consumed by two windows 7 desktops and a windows 8 1 laptop the utility indicated that the desktops used about 75 watts an hour and. 1 6 to 4 1 watts. Even at the maximum a large laptop drawing 90 watts for 12 hours would cost less than 11 cents per day at the ten cents per kwh rate.