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How low can you go...Daily, Weekly, Monthly, Whatever... electricity grid import

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  • QrizB
    QrizB Posts: 13,822 Forumite
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    edited 27 May 2023 at 1:46PM
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    Not a full month, but:
    • 14th May - smart meter import reading 02942
    • Right now - smart meter import reading 02942
    That's thirteen straight days and less than a kilowatt-hour imported. My homebrew battery is working a treat.
    (It's not strictly zero import; for example, according to Octopus, I used almost a quarter of a kWh last Saturday. Most days it's a tenth of a kWh or less.)
    N. Hampshire, he/him. Octopus Go elec & Tracker gas / Shell BB / Lyca mobi. Ripple Kirk Hill member.
    2.72kWp PV facing SSW installed Jan 2012. 11 x 247w panels, 3.6kw inverter. 30MWh generated, long-term average 2.6 Os.
    Taking a break, hope to be back eventually.
    Ofgem cap table, Ofgem cap explainer. Economy 7 cap explainer. Gas vs E7 vs peak elec heating costs.
  • MikeHEQA
    MikeHEQA Posts: 59 Forumite
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    Changed CT clamp for 2000/1 eBay cheapo direct to inverter not using Eastron SDM 230 but still in situ, better response for loads plus import is reduced to less than 300w per day now as shown in picture  attached; using Solax grids tied for solar and solax AC with 10 kWh useable energy
  • MikeHEQA
    MikeHEQA Posts: 59 Forumite
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    Octo-Aid working Live with Octopus Home Mini …


  • ispookie666
    ispookie666 Posts: 1,182 Forumite
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    Nice figures there. I'm struggling to cut it down to less than one kWh, our induction cooktop is the main culprit 
    “Don't raise your voice, improve your argument." - Desmond Tutu

    System 1 - 14 x 250W SunModule SW + Enphase ME215 microinverters (July 2015)
    System 2 - 20 x 330W Jinko Panels + Enphase IQ7+ microinverters (Jan 2022) + Givenergy AC Coupled inverter + 2 * 8.2KWh Battery (May 2022) + Mitsubishi 7.1 KW and 2* Daikin 2.5 KW A2A Heat Pump
  • BossBob
    BossBob Posts: 67 Forumite
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    I’ve got 2 days running that the Octopus app reports 0.08kWh per day this month. Most of mine is due to my espresso machine or the kettle. Induction hobs are not all equal. Our GEC hob ramps power as required up and down smoothly. My mum’s induction hob pulses the power to regulate it. Not nice at all.
    8 x Jinko Tiger Neo 54c 415W, Huawei 3k L1 HV ph Hybrid inverter and 2 x 5kWh LUNA batteries on 15° roof facing SW on the southern edge of Bristol.
  • ispookie666
    ispookie666 Posts: 1,182 Forumite
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    That was a nice productive June!

    Solar Generation:  845
    Solar Export:         343
    Grid Import:           055
    Consumption:        560
    iBoost:                   065


    “Don't raise your voice, improve your argument." - Desmond Tutu

    System 1 - 14 x 250W SunModule SW + Enphase ME215 microinverters (July 2015)
    System 2 - 20 x 330W Jinko Panels + Enphase IQ7+ microinverters (Jan 2022) + Givenergy AC Coupled inverter + 2 * 8.2KWh Battery (May 2022) + Mitsubishi 7.1 KW and 2* Daikin 2.5 KW A2A Heat Pump
  • mickyduck55
    mickyduck55 Posts: 655 Forumite
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    As many are saying Octopus flux has changed how many of us look at this.. I could probably have imported very close to nothing, poured the power into my hot water tank and kept my home cool burning some off using my A2A (AC)

    With Flux I have charged my batteries to 90% at cheap rate every night, turned off my Solic and only used the AC a couple of times in the bedroom.

    Generation 602 kWh
    Export 442 kWh
    Import 92 kWh
    Consumption 239 kWh

    Net electricity bill  -£75 Ish
    3.995kWP SSW facing. Commissioned 7 July 2011. 24 degree pitch (£3.36 /W).
    17 Yingli 235 panels
    Sunnyboy 4000TL inverter
    Sunny Webox
    Solar Immersion installed May 2013, after two Solar Immersion lasting just over the guarantee period replaced with Solic 200... no problems since.

    13 Feb 2020 LUX AC 3600 and 3 X Pylon Tech 3.5 kW batteries added...

    20 January 2024 Daikin ASHP installed
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