Hi folks,
At my job, I have a team of engineers in the UK who are oncall for
mission critical services. As you know, the national power grid is
announcing the possibility of rolling power cuts over the coming months.
Right now available information says it's "unlikely", but possible. If
cuts do happen, it'll be 3+ hours, possibly several times/day.[1][2]
I'm looking at the cost/benefit of deploying small UPSes at people's
homes, to protect their network access when oncall. Just to power the
home router (+ONT if FTTP), and keep a charged laptop. I figure anything
smallish should be enough for a few hours.
Question is, how much battery runtime can I typically expect from ISPs'
last mile infra. I was hoping some of you here might help estimate from
own experience.
People will have a random mix of DSL, FTTP, DOCSIS. Another alternative
is tethering with 4G.
- For FTTP, my understanding is the UK mostly uses PON, so guess it
would be runtime of OLT and onwards
- For DSL: runtime of DSLAM cabinet and onwards
- For CATV: CMTS and onwards, maybe any active equipments in the HFC to
the CPE?
- For 4G: BSS and onwards
I would appreciate any ballpark figures you might be able to provide.
I.e. 15 min vs 8h or 8 days.
[1]
https://www.energynetworks.org/customers/what-happens-in-an-energy-shortage
[2] https://www.powercut105.com/experience
Thank you,
Israel
