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Rank 1
Nov 15, 2026 7:58 PM UTC
Question

Pre-programmed E10 non-settlement meter

Have read a few threads on here about issues moving from THTC to smart meters when the RTS switch off was announced, this may have been covered but I can't find it. 

Just outside Dundee, I eventually responded to the emails last March but first 2 engineers to visit said they didn't have the correct equipment. 3rd guy installed the meter but couldn't get the Comms unit to connect - he reassured me that everything would still work because the E10 times were programmed into it. This is, I presume, the ‘local calendar’? 4th guy fitted a Toshiba 4G Comms unit, and it seems to generally reliable as all the lights flash when they should. 

For other reasons I left Ovo and went to another supplier beginning with O because they had a ToU tariff that on the face of it would keep me warmer (storage heating) and save me money.

Problem is, the times are locked in, and they appear utterly clueless.

Noticed quickly that something wasn't right as the ALC was still coming on at the old times. You can hear a click from the cupboard under the stairs.

After multiple indifferent agents on the phone (Ovo customer services were much better when I had to call them), I was advised to put it in an email. I photographed the card which said the meter was a ‘Pre-programmed Economy 10 meter (non-settlement) - Do Not Read’ and described the set up - part of meter in a box on the front of the house, the other under the stairs approx 4m with no solid walls between. 

The ‘specialist’ assigned to me emails one of these replies once a week: ‘everything is fine on our side’,  ‘we're investigating’ or ‘you need to get an electrician to check your wiring’. They dodge or deflect any questions and won't let me speak to the smart meter team, who have said they won't replace the meter because there is nothing wrong with it.

So TL;DR can the local calendars be wiped remotely? If so, what do I need to tell them to do? If not, do I have any other options?

At the moment I'm having to switch the heaters on at the wall when I inevitably have to get up in the middle of the night to pee. There is enough overlap between the morning E10 window and the cheap period that I'm not haemorrhaging money, but none of the other E10 blocks do so I have to switch them off again, and if I have to go away, then either no heating or I estimated about 25 quid a day with them all on.

Any advice very gratefully received ! 

3 replies

Rank 1
Nov 15, 2026 8:05 PM UTC

Reading another thread saw a mention of ECAUL. I found this online and mentioned it to the last guy I spoke to on the phone. He claims that not only did ‘my’ smart meter team send the request but they contacted Ovo who ALSO sent the request; neither of them ‘failed’ and yet I'm still in the same boat. 

Blastoise186
Super User
Super User
Nov 15, 2026 9:25 PM UTC

Hey ​@grufflehead ,

Just a heads up - mentioning the names of other suppliers is allowed on the OVO Forum. We don’t mind as it actually helps us give better and more accurate advice. The only difference is it stops us from doing stuff that’s OVO specific but otherwise you’ll absolutely get the same advice here for free regardless of who you’re currently with.

Also, only the active supplier can send SMETS Commands to the meter - if OVO’s keys aren’t in there, then OVO’s commands will be rejected.

IIRC the local calendar can indeed be updated via ECAUL/ALCS SMETS Commands, but ONLY via the WAN Connection - using the 4G link in your case - and deletion of the calendar is indeed one of the commands, along with edits and creation. However, it sounds like Octopus isn’t understanding things properly. Normally, we do have Luke who is incredible at poking at meters as one of our secret weapons, but it won’t work if you’re not on OVO as he can’t access meters managed by other suppliers.

I’d suggest a formal complaint to Octopus (or whoever your supplier is) about this - that usually kicks them into gear.

Feel free to reference this forum thread too by the way! You have our blessing to do that. Sometimes it gives the supplier a kick up the backside as a reminder that smart folks out there already figured it out.

Securing energy by zapping security bugs... For that is The Blastoise Way! Remember, I'm just like you - AI Powered Evil Geniuses aren't Staff!
Rank 1
Nov 15, 2026 9:44 PM UTC

Thanks ​@Blastoise186 doing God's work replying at this time on a Sunday! Much obliged, I'm inclined to believe you above some nameless call centre worker. Would still be interested to hear from anyone who knows that specific term (non-settlement) and having spotted quite a few people in N Scotland who were also forcibly switched off THTC via RTS to presumably the same set up as me, whether they got a resolution. 

Worst case, I'll switch back to Ovo, get them to unblock it, then look around.