Propane tank + generator.
Asap.
It's not for now, it's for later. It just so happens you could use it now too.
Discussion
I agree with you.
However, not my house. Not my decision.
Use Ego Yard tools then get one of these. https://egopowerplus.com/nexus-portable-power-station/
Not great for long outages. But better than nothing.
Exactly my set up