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How to save energy automatically with your computers
Use energy-efficient computer models.
Some computers have been manufactured and tested specifically to ensure that they consume less energy.
Verify that your computers have an energy star logo or other government-supported logo, which indicates that the computers save costs on energy bills and are designed to help reduce pollutants that are harmful to the environment.
Use laptop computers instead of desktop computers. The majority of laptops only burn between 15 and 60 watts when in use; whereas desktop computers burn between 70 and 200 watts when in use.