Eli5 why do we not use reactor waste to make power?

Question

Reactor waste remains hot as waste so why do we not pile it in a massive dump and cirulate water through it to raise steam or at least preheat water for heat generation?

​

Thanks everyone for an informative and interesting discussion.

​

In: 337

Answer 1

All I gotta say is this whole post has been super-informative.
Great question and civilized responses!