What you mean, “we”, Kemosabe? I expect the Japanese engineers know quite well what the temperature and watts of the thermal input is. And because “we” know the first law of thermodynamics, we do to (that is, apparently we do, since you’ve said the electrical and thermal output have been published). I’m not sure what you’re trying to get at here. There’s no mystery about the efficiency, there was only a small disagreement as to whether it was being calculated correctly – not if it could be.
