Yeah I can't seem to find it anywhere.

you get all the parts, and add to the workbench, i think thats what you do

you ride the bus 2 times and there is a door right when you get out. you go down and you build it down there.

Actually, I was watching a guy play it. What he did is made the "Turbine" and you carry it around to make things have power in a certain area. Like for perks you put it infront of the machine. And you can make it at the starting area. Not sure if theres a global power switch.

Bapped wrote you ride the bus 2 times and there is a door right when you get out. you go down and you build it down there.

I though it was there, I keep dieing down there though because it closes the door behind you and says you need a power source to open the door again

How do you have Black Ops 2 already???

miki18 wrote you get all the parts, and add to the workbench, i think thats what you do

Have you found more then 1 part? You can only carry 1 part at a time & that seems like alot of work to run around the whole map just to get the power to turn on, Don't think you need all the parts mabey just 2/3 from that area like how in the other areas you can make other things such as the Zombie Shield

you get the bus 2 times drop down into the lab room then you put the 3 parts from the lab room on the bench and you build the power switch and then you pull it. just watched a guy do it on a stream

From watching Livestreams, I believe you have to collect the parts, use them on the workbench, and then turn on the power.

I think the parts you need for the power are the lever and handle and just use them on the workbench right next to the power switch