I feel ya (almost).. it also means no flushing toilet, and here no stove!
I should have invested in a generator years ago.. and maybe it's time you should to?!
We will be replacing our pellet stove that requires power to run the hopper and fan with a wood burning stove that does not require electricity to make heat..
The propane BBQ can be a valuable resource in these times to heat water.
Regarding frozen coop water.. I have seen a poster who composts manure inside a hole and sits the water on top..
https://www.backyardchickens.com/posts/15626545
Hope this helps and your rough time passes quickly!