The problem with decomissioning the gas reactors is that the moderators are big graphite blocks, the same things that cut the lifetimes of the plants as they crack due to irradiation. Much nicer in LWR's where the moderator is water, which can't become radioactive (any radioactive particles are captured in filters which are then treated as intermediate level waste, 500 year storage in cave).

Peak oil is not an energy crisis. It is a liquid fuel crisis.