Courtesy of labnol.org
If you are curious to know the exact electricity cost of running your laptop or desktop computer all day long, here’s a quick guide.
Step 1: You first need to calculate the total power (in kilowatt) that’s consumed by your monitor, CPU, graphic card and other components of the computer.
Don’t worry – you don’t have to do these calculations manually. Joulemeter is a free software from Microsoft that can quickly estimate the power consumption of your computer based on the screen’s brightness, the microprocessor, etc.
Step 2: Now find the retail cost of electricity (commonly known as price per unit or price per kWh) in your part of the world. You can know the electricity cost per unit either from your last month’s electricity bill or check the official website of your power distribution company (search for electricity tariffs).
Once you have the two numbers, just multiply them to get an approximate idea of your computer’s electricity bill. I say approximate here because we are ignoring the power consumed by the modem, router and so on.
The Total Electricity Cost of Running a Computer.
