The Path Of Energy Mac OS
Follow the instructions below for Mac OS X Version 10.4, nicknamed 'Tiger'. Steps for activating sleep settings in other versions of OS X will be very similar.
The Path Of Energy Mac Os Catalina

Featuring great examples of infographics, data visualizations and visual communication including critique, commentary, best practices, tips, design tools, jobs board, posters, and the Cool Infographics book! To set up environment variables such as the PATH variable on OS X I'd recommend using EnvPane. The CLASSPATH variable can be set with this as well, although is normally set when calling Java using java -cp whatever/something.jar. The Energy tab of Activity Monitor displays the Energy Impact of each open app based on a number of factors including CPU usage, network traffic, disk activity and more. The higher the number, the more impact an app has on battery power. More detail, but still vague.
- Click on the apple symbol (Apple Menu) in the upper left of your screen.
- Go to 'System Preferences'
- Click 'Show All' (if necessary)
- Select 'Energy Saver' from the 'Hardware' row
- Set 'Put the computer to sleep when it is inactive for' to 30 minutes using the slider
- Set 'Put the Display to Sleep when the computer is inactive for' to 5 minutes using the slider
The Path Of Energy Mac Os X
EPA recommends setting computers to enter system standby or hibernate after 15 to 60 minutes of inactivity. To save even more, set monitors (displays) to enter sleep mode after 5 to 20 minutes of inactivity. The lower the setting, the more energy you save. The 'Put the hard disk(s) to sleep when possible' setting does not save much power, and can be ignored.