Was the shut down just as the attack started, or very soon before, as a precaution, or was it shut down for maint or repair.
If the latter, then what were those 12 mil doing for juice in the meantime?
“The plant has 6 VVER-1000 pressurized light water nuclear reactors (PWR), each fuelled with U235 (LEU).[1] and generating 950 MWe, for a total power output of 5,700 MWe.[2] The first five were successively brought online between 1985 and 1989, and the sixth was added in 1995. The plant generates nearly half of the country’s electricity derived from nuclear power.”
https://en.m.wikipedia.org/wiki/Zaporizhzhia_Nuclear_Power_Plant
There were approx 43.5 million people in UA before all this started.