Lol.
I'll take a guess at your problem your trying to run forge. Simple trick:
1.Create a folder called bin
2.Download your appropriate version of Forge
3.Rename it Modpack.jar
3 Easy steps.
I'm assuming you know how to set up the rest of the pack.
I built a 3x3 square with glass 2 blocks high. I placed a fission reactor in the center and filled up the enclosure with water (Non flowing). I placed turbines one block higher then the 2 block deep flowing water and right clicked and it worked.