Russian occupiers at the Zaporizhzhia NPP have put the plant�s power unit into a hot shutdown state, which creates risks to nuclear and radiation safety.
The site uses the steam generated from one reactor unit in hot shutdown for various nuclear safety purposes including the processing of liquid radioactive waste collected in storage tanks. IAEA Website
From the context provide in the article I surmise that ‘Hot Shutdown’ is a condition where a reactor is on and generating steam for use with plant processes only and not producing power for external use. It is unnecessary to have any of the reactors in a Hot Shutdown state as the steam needed can be generated via mundane boilers (which would be safer and is the IAEA’s recommendation).
From the context provide in the article I surmise that ‘Hot Shutdown’ is a condition where a reactor is on and generating steam for use with plant processes only and not producing power for external use. It is unnecessary to have any of the reactors in a Hot Shutdown state as the steam needed can be generated via mundane boilers (which would be safer and is the IAEA’s recommendation).