Energy saving is a crucial aspect of using electronic devices, as it not only reduces electricity bills but also extends the lifespan of the hardware. In the Apple environment, energy-saving techniques are essential for optimizing the performance of MacBooks, iMacs, and other Apple devices. This article will explore various methods to conserve energy on Apple devices, including adjusting system settings, using built-in tools, and employing best practices.

Examples:

1. Adjusting Energy Saver Settings on macOS:

   • Open "System Preferences" from the Apple menu.
   • Click on "Energy Saver."
   • Adjust the settings for "Battery" and "Power Adapter" to reduce energy consumption. For example, set the display to turn off after a few minutes of inactivity and enable "Put hard disks to sleep when possible."

   # Command to open Energy Saver settings via Terminal
   open -b com.apple.systempreferences /System/Library/PreferencePanes/EnergySaver.prefPane

2. Using Activity Monitor to Identify Energy-Intensive Applications:

   • Open "Activity Monitor" from the Applications > Utilities folder.
   • Click on the "Energy" tab to see which applications are consuming the most energy.
   • Close or uninstall unnecessary energy-intensive applications.

   # Command to open Activity Monitor via Terminal
   open -a "Activity Monitor"

3. Enabling Automatic Graphics Switching:

   • For MacBooks with dual graphics cards, enabling automatic graphics switching can save energy by using the integrated graphics card for less intensive tasks.
   • Go to "System Preferences" > "Energy Saver."
   • Check the box for "Automatic graphics switching."

4. Using Terminal Commands to Manage Energy Settings:

   • You can use the pmset command in Terminal to adjust power management settings. For example, to set the display to sleep after 10 minutes of inactivity:

   sudo pmset displaysleep 10

   • To set the computer to sleep after 30 minutes of inactivity:

   sudo pmset sleep 30

5. Reducing Screen Brightness:

   • Lowering the screen brightness can significantly save energy.
   • You can use the F1 and F2 keys to adjust the brightness or go to "System Preferences" > "Displays" to adjust it manually.

6. Disabling Unnecessary Startup Programs:

   • Go to "System Preferences" > "Users & Groups."
   • Click on your user account and then the "Login Items" tab.
   • Remove unnecessary applications from the list to prevent them from starting up automatically and consuming energy.