Sorry AquaVixen but that doesn't make any sense. Everything in this game is free. I can mine copper out of the ground, turn it into copper ingots, craft those ingots into wire and then drag that wire to my trash can without incurring any cost. But suddenly it's nuclear power that needs to incur a cost to use it, even though biomass and fuel don't have any costs either? No, it's a made up mechanic that the developers want to inflict on us without any reason. In other words, if nuclear waste is a cost then everything else should have one.