It’s becoming more and more common, especially in places with older homes which the East Coast is full of. There are many, many millions of home with 100A or even 50A service. That was standard until the 80’s and 90’s. The grid was built to support that.

But now a lot more people run AC and electric car charging, among other things like induction ranges. The infrastructure is struggling to keep up. A lot of it is super old and it’s not uncommon to come across 50 year old transformers, etc.

Brownouts and blackouts have become rather common.

But the gas always works. Where I live a lot of people have installed natural gas generators.