Board Thread:Questions and Answers/@comment-78.49.36.156-20130620203406/@comment-8540798-20130620210420

You need to build yourself a Nuclear reactor in the "Breeder Reactor" format. A Breeder Reactor is one that can rise to extreme heat levels, but doesn't make much EU. It's sole purpose is to fill the bar on the Depleted Isotope Cell, and once full, you can combine that with a Coal Dust to make a brand new Uranium Cell. It's a good way of stretching out your Uranium, as you can get 8 Uranium Cells out of one Refined Uranium if you have the patience.