Definitely disabled...I was hoping to make use of the hundreds of stacks of salt/zombie flesh I have to generate some power. Still working on finding uses for all the arrows I have...line my trench with pressure plates and dispensers full of arrows for giggles, maybe?
Personally I've got 5 reactant dynamos, 2 furnace generators, and 5 TNT generators (make sure you muffle them and put them a ways away...I initially skipped the mufflers and buried them 5 deep ,and not only was it unbearably loud, but I was taking a lot of damage from them. I've got them muffled and 10 deep now, and I still occasionally take a half heart of damage from them.) This runs 4 harvesters, 3 planters, 12 pulverizers, 2 grinders, my kinetic compressor, a redstone furnace, an autopackager, and a fluid transposer. Other incidental machines can be hooked up and used as needed, and I haven't had any power issues.