I've worked in a hospital. During my time there we had a true blackout. Even the central power generator couldn't turn on, because the connection was chewed through my rats. No one did a check on it like they're supposed to every month...heads rolled for it.
Here to say, you can't just power ICU beds in isolation. The circuits for emergency power aren't just going to beds. They're open sockets on the wall, any one can plug anything in there. You can't just redo a circuit in the blink of an eye either. If their central generator died and they get a bunch of gas powered ones, they'll need a lot of time to figure out where they need to splice the wires in order to supply power but not overwhelm the generators.
It's safe to say they're probably going to use their large central generator. It's probably also safe to say they're going to power more than the ICU beds. Even if they turned off the heating and cooling, they're still going to use more than the figure you suggested. Some circuits aren't optional.
I've worked in a hospital. During my time there we had a true blackout. Even the central power generator couldn't turn on, because the connection was chewed through my rats. No one did a check on it like they're supposed to every month...heads rolled for it.
Here to say, you can't just power ICU beds in isolation. The circuits for emergency power aren't just going to beds. They're open sockets on the wall, any one can plug anything in there. You can't just redo a circuit in the blink of an eye either. If their central generator died and they get a bunch of gas powered ones, they'll need a lot of time to figure out where they need to splice the wires in order to supply power but not overwhelm the generators.
It's safe to say they're probably going to use their large central generator. It's probably also safe to say they're going to power more than the ICU beds. Even if they turned off the heating and cooling, they're still going to use more than the figure you suggested. Some circuits aren't optional.