"Seems he had got conned sometime around 1975, signed a spares contract, and had a large store room full of replacements; enough for about another 200 years of this power hungry crap."
I've run into that kind of shit before.
The solution is to add up the power costs, demonstrate that it's cheaper to dump the contents of the store room and jettison the numpty manager, then make higher ups aware of the situation.