If you have a camera and an industrial plant available to you, I highly recommend taking a few pictures. I took a little while this morning and touched up a few photos I took the other day. I approched each one a little differently.
Below, I liked the green from the fluorescent lights and so I used that and enhanced the greens to get what you see below.
I also tried a little gem that I'd never noticed before...see how it warped the photo above?
The next one is just a part of the original photo. I think I modified it enough to give it a Sci-Fi feel.
I always like to add contrast. I like these. I think they would make a good set.