This may not be the place to ask this question, but I can't seem to get a good answer anywhere else...I have a manufacturing company. I am on a 3-phase demand meter. I'm trying to figure out if it is more cost effective to shut all the electric motors down during breaks and lunch and restart or just leave them running "idling" during these times? The motors are 2 - 100 HP, 4 - 75 HP, and 4 - 50 HP. The other question I have is about motor efficiency - I've had a salesman come by and talk to be about "phase aligners" (Don't really know what they are, but I'm guessing some sort of capacitor that "cleans up" the inbound electricity). Anyone know anything about these and if they are worth fooling with?