How to Create a Laptop Power Efficiency Report

If you are a Laptop user your Laptop battery life and its performance is something you need to be familiar with. Obviously you try to drain every bit of power from your system by tweaking what you can to make it last longer. Like Windows troubleshooter and other helpful tools, Windows also can help you analyze your system’s power performance and guide you to improve it.  Microsoft has been providing many new features to their users that can help them to their computer performance in a better way. As compared to XP, Windows 7 is lot more user-friendly and has got features and support that you might have never thought. Generating power efficiency report is one such feature.

PowerCfg command

Windows Seven provides its users a way, a tool to analyze their system’s efficiency, i.e. power consumption. Even if you are using if your laptop in balanced or power saver plan mode, there may be other sources of your battery drainage leading to annoyance of low battery notifications time and again. This tool, the PowerCfg command tool will help in tracing the reasons of power wastage. Let’s try it out.

Using PowerCfg command

  1. First of all, close all your applications files and folders running. To perform this analysis, it is required that your laptop be in idle state. Now perform these steps:
  2. Now, open start menu and type in search box CMD, right click the command prompt (cmd.exe) icon that appears and select Run as administrator.
  3. The command prompt window opens up. In here, type the following command powercfg -energy -output \report_energy_consum.html
  4. Windows takes a full 60 seconds to analyze your system’s power consumption and generate the report which is saved in your local user drive.
  5. When analysis is finished, the command screen shows a message showing number of errors and warnings in the report. It tells the location where the energy report has been saved.
  6. The report is in html format and you can view the diagnostic results by double clicking it. Reading through the analysis, you can get to know what is letting your power to drain at an extra rate.

power efficeincy report

Sections of report

The report is categorized into 4 sections:

  1. Basic system information
  2. Errors
  3. Warnings
  4. Informational data

Their contents are explained as follows:

1.      Basic System Information

The first section of this report lists the basic informational details of the system like name of system, BIOS date and version, manufacturer etc. It bears a white background.

2.      Errors:

The second section deals with the errors. Errors are listed in a red/ pink background. These are the problems that are considerably influencing power consumption and should be taken care of. Problems listed in this section affect battery life by 15% or more, so must be fixed essentially.

3.      Warnings:

Here the matter is listed in a yellow background. Though the problems listed here are not as critical as there were in the errors section, but you should try fixing them. It’s a good deal, as it will increase system efficiency.

4.      Informational data:

The fourth and the last part of report contain informational data on a white background. It does not point to any power issue or require problem fixation. It just lists the components and sections of system that were inspected for the report.

Isn’t it a great tool? What are you waiting for?? Open up the command prompt and divulge the secret monster consuming your battery power.

Laptop users can now coax with their battery’s early discharging problem to a great extent. But, there is a drawback; this feature is not available in GUI form. The only way to use it is Command prompt, which is a bit of difficult for novice users. However, we can hope to get a GUI (graphical user interface) release of this feature soon, so that users can easily take advantage of this excellent feature.

If you are one of the lucky ones that has a laptop like the Toshiba mini, that claims to have 11 hours battery life, then I guess you will not need to generate a power efficiency report! But for those of us that struggle and try to conserve our laptop power usage, the power efficiency report is a god send.

My name is Mitz Pantic and I’ve been working with computers for over 25 years and love to teach people how to use their computers. Be sure to visit me at my computer tips and tricks website and say hello in the comments section. Also do not forget to sign-up for my free computer tips newsletter and receive a free 59 page Computer Terms Dictionary!