Your reply does not respond to what I said.
How many workers there, how much heat energy is being expended by ongoing nuclear fuel decay, how much monitoring, maintenance, rehabilitation, remediation, has nothing, nothing, to do with “on the grid”.
“On the grid” means the plant is producing electricity and is feeding electrical energy through wires to be used elsewhere.
What I quoted implies that (1) this “decommissioned” plant was “on the grid” supplying electrical power for productive use prior to the Russian invasion, (2) it is no longer “on the grid”, and (3) this change in status from “on the grid” to “off the grid” occurred after the Russian invasion. The makes no sense.
No, they’re referring to being “on the grid” so they can power coolant pumps and other machinery.