Comment it's not about power (Score 2) 96
POTS lines use very little power nowadays. Decades ago they still used very little power, except when ringing. Those electromagnets hitting big bells did take some juice, but the actual power required once you lifted the receiver is very low. Modern (transistor-based, with piezo tweeters for ringing) are much more efficient, all the time.
This is about them having to continue to keep tabs on and maintain equipment that they've been maintaining for decades. This isn't about additional costs, it's about them wanting to cut costs by ditching gear that's expensive to maintain and gets far less use than it was designed for. (it's efficient at scale, and the scale has gone)
I can't say I blame them. Imagine your old house got central air a decade ago, and you still have a window air conditioner in the living room, and you'd like to get rid of it, but the city is saying you can't remove it, and have to keep it maintained and working, and pay for annual inspections.
The only reason we still see around 4% landline usage is simply inertia. Old people don't want to give it up because they don't like change or learning something new, younger people that have it don't have a reason to get rid of it and see it as a cheap "just-in-case" backup, and there's a really small percentage of people (I'd venture a guess at under a tenth of a percent) that have a good reason to keep it.
So the question is "at what point do we tell that tenth of a percent to look elsewhere?" There's tons of other good examples, how about leaded gas? or R34 freon coolant? or businesses accepting cheques? or something closer to home on the issue - pay phones on many street corners? Technology moves on, and the longer you wait to move on once the writing is on the wall, the bigger of a personal hassle it's going to be. (I see this all the time with computers, upgrade people! get rid of that ten year old doorstop! I don't care if "it still works", you need to modernize!)
so the TL;DR of my rant is "it's not about the power use, but the telco doesn't want to come right out and call you a hold-out that needs to get with the times so we can all move on." Power savings looks like something that's "good for everyone" instead of pointing fingers at the stubborn few.