If you do not know when "normal service" will be resumed - say so. And if you do not know when you will know, say so.
Oh yes, I am sure that haranguing, baying mob in the terminal would accept those answers.
How far down the pecking order do you imagine a passenger service person is, when the local electricity board is trying to find out how they can replace a transformer which is two feet under water ? The local electricity company doesn't give a hoot about a passenger to Torremolinos under cover in a terminal and is more interested in getting the problem solved without electricians being electrocuted.
I'm just saying that when you have a significant outage like this, everyone imagines their problems are top priority when in fact they are the bottom of the barrel in most cases. I'd be more concerned about getting the IC unit at the local A&E up and stable before a flight of drunks to Malaga can leave.