when building a turbine it can assemble with you inside it. because of this yo can destroy blocks. destroying the coil does not reassemble the turbine so i could remove the coils teleport out and the turbine would work as if nothing ever happend. does not work with blades or shafts. obviously if the turbine is disassembled in anyway this would reset this but using chunk loaders and keeping entire turbine in chunk you can have a turbine for only the cost of the casing and ports. not tested with reactors but i imagine it would do the same thing. other than building yourself in you canteleport in and out to do the same thing.

video showing the coil glitch with big reactors v0.4.3A in the Crundee Craft modpack version 1.0.9 with a few additional mods that would not affect this.
video link: https://youtu.be/JYR7KUrNS4Y