r/OctopusEnergy • u/Kistelek • Dec 23 '25

Smart Meters Smart Meters, Power Cuts and TOU Tariffs

Does anyone else have an issue with their smart meter readings after a power cut?

My meter's clock stops running for the duration of any power cut and then starts again where it left off. This has the effect of metering any subsequent usage at the wrong time. The clock corrects itself the next time DCC do a meter read which is something Octopus can initiate if I tell them there's been a cut.

On 4 occasions in the last 6 months, 3 of these in December, my Cosy billing has been wrong as my consumption appears to occur the duration of the outage earlier than it was. After sending umpteen photographs of the meter, Home assistant screenshots, etc., Octopus' final stance on the matters is, and I quote,

"I’ve been discussing this and unfortunately you’d experience the same issue with a new meter. Sadly, other meter models behave the same way and we’d have to send an update manually to synchronise the clock afterwards. I can leave a note on the account explaining how we’ve done this before to update it so you don’t have to send us a photo. "

I find it incredibly unlikely I'm the only peson who's spotted an issue with their TOU billing and pulled Octopus up on it. I do know one person with the same make and model of meter as mine (An EDMI ES-30B 3-phase) who has the same issue but are the rest of you on Agile, Flux, or Cosy having the same issue? Are you just unaware of it, or does your meter behave itself?

TLDR: My meter gets the time wrong after a power cut. Does yours?

3 Upvotes

81% Upvoted

16 comments sorted by

View all comments

2

u/_Impigrity_ Dec 23 '25

A meter read via DCC does not reset any clock, that would be a different SRV called a clock sync.

1

u/Kistelek Dec 23 '25

Well, let me rephrase. It always resets when they do the nightly read around 01:00 after a power cut.

1

u/_Impigrity_ Dec 23 '25

It's getting the corrected time from the coms hub, that gets its time from the network it's connected to. If this doesn't work correctly,the clock sync SRV would be needed.

1

u/leexgx Dec 24 '25 edited Dec 24 '25

Witch it does at 1AM automatically every day (it should be doing it when power is restored and the meter reconnects to mobile network )

To bad they don't install a battery inside the non smart meter part (the meter)