I know they must be cooled but, like a car once the engine starts the alternator runs the electrical; how come once the reactor is at power will you not have enough juice to cool all decay and reactor related heat sinks? There isn't enough heat out of decay to get any power? Even supplemental cooling pumps started? But the decay is hot enough to boil zinchromium in seawater or something like that. Maybe not megawatts but watching the meltdown in Japan there seems to be alot of outgassing or pressure that if taped to an emergency generator would have saved alot of headaches.
Again I'm no scientist but what about a decay heat power reactor in the swimming pool reactors and spent pools. Just shooting off the hip.... Maybe a molten metel transfer for a ~1Mw output to drive a battery bank/capacitor and control room. Then tie into the grid for redundant redundancy