To say the Russians are preparing to blow up the ZNPP is Ukrainian propaganda. It is UKRAINE who is prepping for a false flag op, a desperate attempt to get the West involved in the war in some way, at some level.
The Russians have absolutely no reason to blow the plant, as it would impact mostly RUSSIANS.
Remember, last September declared that whole territory to be part of Mother Russia "forever" and that the people who live there are Russian citizens.
NOW, if Ukraine wanted to strike back at Russia and hurt Russians, then blowing up the ZNPP would be a good way to do it.