Board Thread:Tutorials/@comment-24579789-20140406221402

I have noticed that Mass Fabricators instantly use EU available, I am thinking that using a Mass Fabricator do avoid energy waste(by using the excess to generate UU Matter), but then, I also faced the problem of a Mass Fabricator using all energy that was produced, leaving nothing to others machines.

And I discovered an answer: use a BatBox /MFE /MFSU configured that will emit a redstone signal only when it full, after that, you put a redstone torch (shift click) on the battery, inverting the signal, and then wire it to the Mass Fabricator.

Conclusion:

The battery will emit a redstone signal only when full, but with a redstone torch, a redstone signal will disable the Mass Fabricator if the battery is not full, leaving it to the energy to the others machines.

Feel free to correct me (as I never tested it, and this is my first post) or add something useful (like snapshots, or another method to increase efficiency). 