Hey witch -
TJ has a static energy sculpture which he's set up for community lots and is NL approved:
http://www.moreawesomethanyou.com/smf/index.php?topic=1193.0...if you'd rather just use that. It's buyable on community lots without fiddling.
I prefer to use Merola's painting, which is also buyable on community lots. Sometimes I want to give them an energy boost and sometimes I don't. (Also, find a hygiene boost is a necessary cheat to party all night and day without green fog everywhere....the painting lets me boost whatever I want for just my Sim or everybody on the lot.)