Board Thread:Questions and Answers/@comment-65.0.126.37-20140602001743/@comment-1757231-20140602122153

Yes, the guy above you is right. Basically, you can turn it on/off using a Redstone Signal.

If you want to save electricity, just get a Solar Panel, which is enough to offset the 1 EU/t.

Or use Macerators w/ Overclockers.