Just curious if this can be automated via Applescript/shell script? Perhaps even Automator? My son had an energy project for his class tonight which has me thinking. Generally I leave my QS on at full power with the screens set to shut off by a certain amount of time. With the type of processors I have I don't have the power setting in the Energy Settings pane to reduce their power draw. But I do have the ability to switch one CPU off whenever I feel like it. So, I was thinking some sort of Applescript/shell script/automater feature that would shut off the second CPU whenever my screens go dark. I don't have an issue with doing that if I'm not at the Mac. But for a few reasons I'd rather avoid shutting the Mac off entirely. I can automate the trigger, but have no idea where I'd find any scripting commands to control shutting off a cpu. Ideally, when getting back on again the script would work in reverse and turn the second CPU back on. Even if it's GUI scripting I can do that, I just need an idea of the commands. Anyone have any idea?