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Weird Octopus app bug(?) - negative gas usage

QrizB
QrizB Posts: 21,528 Forumite
10,000 Posts Fourth Anniversary Photogenic Name Dropper
edited 18 October 2025 at 8:10PM in Energy
I was looking at today's energy usage on my Octopus app and the gas use chart looks like this:
That's -2kWh of gas used in the most recent 30-minute slot, which I think is a first for me 😂
Had anyone else seen anything like this?
N. Hampshire, he/him. Octopus Intelligent Go elec & Tracker gas / Vodafone BB / iD mobile. Ripple Kirk Hill Coop member.
2.72kWp PV facing SSW installed Jan 2012. 11 x 247w panels, 3.6kw inverter. 35 MWh generated, long-term average 2.6 Os.
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Comments

  • EssexHebridean
    EssexHebridean Posts: 25,606 Forumite
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    Don’t tell me - you’re beta-testing Agile gas, aren’t you! 😂
    🎉 MORTGAGE FREE (First time!) 30/09/2016 🎉 And now we go again…New mortgage taken 01/09/23 🏡
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    Balance as at 31/08/25 = £ 95,450.00. Balance as at 31/12/25 = £ 91,100.00
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  • MikeJXE
    MikeJXE Posts: 3,946 Forumite
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    Mine looks like this 


  • MWT
    MWT Posts: 10,714 Forumite
    10,000 Posts Sixth Anniversary Name Dropper
    edited 19 October 2025 at 6:35AM
    QrizB said:
    I was looking at today's energy usage on my Octopus app and the gas use chart looks like this:

    That's -2kWh of gas used in the most recent 30-minute slot, which I think is a first for me 😂
    Had anyone else seen anything like this?
    Only thing I can suggest is an un-trapped error code from the meter.

    See how the daily total works out ...

  • Bearing in mind when you contacted them about your earlier woes, it is probably using the gas stored in the  pipework 😎
    4.8kWp 12x400W Longhi 9.6 kWh battery Giv-hy 5.0 Inverter, WSW facing Essex . Aint no sunshine ☀️ Octopus gas fixed dec 24 @ 5.74 tracker again+ Octopus Intelligent Flux leccy

    CEC Email energyclub@moneysavingexpert.com
  • Bendo
    Bendo Posts: 702 Forumite
    Seventh Anniversary 500 Posts Name Dropper
    Too many sprouts consumed and on an export tariff? 
  • It's crossed with your neighbour's meter and he's pumping nitrogen down his pipe to make the meter go backwards ! 😈
  • What does Octopus Customer Services say?
  • Perhaps they've backdated the Volumetric Adjustment variable.
    So just correcting errors in estimated prior use?
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