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Run A Windows 7 Power Efficiency Report [How-To]

Earlier this week we looked at power management in Windows 7.  This article will follow up on that same topic with checking in on the efficiency of your power settings.  The report will help you isolate power hungry components and tell you where all of your energy is going.  This is great for people running Windows 7 on laptops since battery life is always something on the mind.


To ensure accurate results, make sure you don’t have any programs running that normally wouldn’t be running when your computer is just sitting idle.  Let’s get started on generating a report!


1.  Click the Windows Start Orb, then Type cmd into the search box.  Next Right-Click cmd.exe that appears in the program list, in the context menu Click Run as administrator.


run as administrator for the cmd in windows 7


2.  In the command prompt, Type powercfg –energy and Press Enter to start the diagnostic.  It will take 60 seconds to complete.

Once the diagnostic is finished, Type energy-report.html into the command prompt to view the HTML report file.

use powercfg -energy command to run a diagnostic report on energy efficiency in windows 7 


3.  You’ll see the diagnostic report, you can decipher what type of message is what by the color the background is behind them.

Pink = Error
Yellow = Warning
White = General Information

view the power diagnostic report for power efficiency in windows 7


All done!

Alright, well hopefully you aren’t like me and had a huge report to sort through and figure out, but going through all of the errors and warnings can greatly improve your power efficiency and improve battery life for laptops.  If any of the errors and warning seem confusing, feel free to ask about them in the groovy community or consult the microsoft powercfg document.

Related Article:  Microsoft Releases Upgrade Options for Windows 8

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One Response to Run A Windows 7 Power Efficiency Report [How-To]

  1. 1upMushroom November 19, 2009 at 1:23 pm #

    woah, had no idea you could do that. Thanks for the how-to

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