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zonEnergy is a little utility to keep your screen or your computer awake. Simply clicking on the menu will bring you options to disable screen dimming or computer sleeping for an amount of time, or indefinitely. It was developed to watch online videos without having to take care of dimming.
  • Disable screen dimming
  • Disable computer sleeping
  • Autodetect video sites like youtube and metacafe in order to keep your screen awake

What's New

Version 1.0.2:
  • Added an option to Ctrl+click in the menu to turn on/off "Screen Dimming disabled" directly,as is the most used option.
  • Changed the icons. Now there is are four icons/status for better understanding.
  • Solved minor problem with sleep disabler not working.
Version 1.0.1:
  • Added option to turn off the screen
  • Disabled log output.


Mac OS X 10.4 or later

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zonEnergy User Discussion

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syharris Member IconComment+49

Clicking on "Put Screen To Sleep" in zonEnergy 1.0.1 instantly causes a kernel panic on my 17" Powerbook, every time. Don't know if it's just my issue or others experience this anomaly as well.
OS 10.4.11

Reply0 replies
Version 1.0.1
brock samson Member IconComment+15
brock samson

Will not prevent sleep when lid is closed.

Reply4 replies
Version 1.0rc1
zonsoftware (Developer)

Yes, it will not prevent when you close the lid. It's not the purpose of the application.
Maybe I look to add this feature.

brock samson


Thanks, that would be great...


Well, preventing sleep mode when lid is closed on a laptop could pose a real safety issue, i.e., if lid is closed and laptop is then put into a bag while laptop is still on, it could cause laptop to overheat, possibly causing a fire; a definite problem on an airplane flight.

brock samson

Understood - you need to be careful.

I use InsomniaX right now so that I can close my lid while I carry my laptop from my office on the 2nd floor to the lab on the first. That way, I don't lose the wireless connection and I don't need to reestablish all of the SSH sessions that were active at the time... so it's sleeping with the lid closed for about three minutes tops.

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Current Version (1.x)


Downloads 3,906
Version Downloads 3,369
Type Utilities / System
License Free
Date 12 May 2008
Platform OS X / PPC 32 / Intel 32
Price Free
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