You are citing “Quora,” which is a BS anybody-can-play blog. Try a real source next time.
I did. My primary source was prior. Here it is again:
https://www.nrel.gov/docs/fy09osti/44520.pdf
The Quora link was merely additional discussion. However, when it comes to electricity I have enough formal training (EE) and background to weed out most BS. (Most) Often, little slips in details are giveaways. ;-) In the case of Asia, I have some experience there of my own, and also through friends and a large extended family, regarding shaky infrastructure.
Now, that said, I received an e-mail back from my EE buddy in Switzerland. He says there indeed may be a problem with cell tower power backups, as Euro electrical power lines are almost all buried, making the system quite stable in the sense of being generally free from interruptions of any real significance. So, cell tower power backups are less robust than in the US and even much of developed Asia. We both agree (I have some, a bit dated, specific power industry engineering training) that if there are electrical power shortages, they can be handled by rolling 60 or 90 minute blackouts. Maybe 3x a day. So, there could well be ~60 minute rolling cell tower blackouts too. This is mainly an inconvenience as I can attest, living in a spot where cell reception on my particular phone is a ~40% “no signal” proposition anyway. (My wife’s phone does better and her signal dropouts are typically both less frequent and shorter, say, maybe 4 dropouts of a minute duration in a “bad” hour.)
It’s not all inconvenience, though: 1 hour cell tower blackouts could definitely be a problem for emergency calls.
My friend in Switzerland brought up a 2nd good point too. He has pretty high regard for most of their electrical power systems people, but, they likely lack real world experience with rolling blackouts. There may be some glitchyness early on.
Now, FR is a BS anybody-can-play forum too, so, take that for whatever you think it is worth.