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Renewables: "talking 'bout my generation"

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  • jackieblack
    jackieblack Posts: 10,497 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    edited 11 May 2012 at 7:42AM
    Quarterly FIT reading taken yesterday
    Unsurprisingly was down on same quarter last year :(

    xxxxxxxxx2010-11 xxxx2011-12
    Nov-Feb xxxx190 xxxxxxxx285
    Feb-May xxx709 xxxxxxxx589
    2.22kWp Solar PV system installed Oct 2010, Fronius IG20 Inverter, south facing (-5 deg), 30 degree pitch, no shading
    Everything will be alright in the end so, if it’s not yet alright, it means it’s not yet the end
    MFW #4 OPs: 2018 £866.89, 2019 £1322.33, 2020 £1337.07
    2021 £1250.00, 2022 £1500.00, 2023 £1500, 2024 £1350
    2025 target = £1200, YTD £690
    Quidquid Latine dictum sit altum videtur
  • Oscargrouch
    Oscargrouch Posts: 4,393 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    EricMears wrote: »
    Total for day 11.8 Kwh.

    Just checking my maths. A 2.5kWH system should work out to produce 62.5% of a 4KkWh system?

    So, yesterday Eric's total was 11.8kWh, mine was 7.3kWh, 62.5% of 11.8kWh works out at 7.375kWh - bang on what I ended the day with. :T
    Are the Maths correct?
    2.5 kWp PV system, SSW facing, 45 Deg Roof. ABB Inverter, Monitor: 'Wattson'.
    Reg. for FIT Nov 2011. "It's not what you generate; it's how you use it that matters". One very clean Vauxhall Diesel Sri, £30.00 Road Tax: B)

    Definition of 'O's = kWh/kWp (kWh = your daily & accurate Generation figure) (kWp = the rated output of your PV Panels).
  • Oscargrouch
    Oscargrouch Posts: 4,393 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    Washing Machine is on; Dishwasher next, producing 2.175kWh between clouds, so far today--4.2 kWh:j
    2.5 kWp PV system, SSW facing, 45 Deg Roof. ABB Inverter, Monitor: 'Wattson'.
    Reg. for FIT Nov 2011. "It's not what you generate; it's how you use it that matters". One very clean Vauxhall Diesel Sri, £30.00 Road Tax: B)

    Definition of 'O's = kWh/kWp (kWh = your daily & accurate Generation figure) (kWp = the rated output of your PV Panels).
  • EricMears
    EricMears Posts: 3,306 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    Washing Machine is on; Dishwasher next, producing 2.175kWh between clouds, so far today--4.2 kWh:j

    8.2 Kwh - 62.5% of which gives just over 5. One peak of 3.2Kw; several >2.5Kw. Alas, no peak has lasted long enough to get excited. Did manage to pump rainwater for WC flushing & have done a bit of cooking.

    But the SSW orientation should explain all; If sun shines late evening you'll soon catch up.


    If the met office seaweed is working right, tomorrow should have us all dancing in the streets. If not, not !
    NE Derbyshire.4kWp S Facing 17.5deg slope (dormer roof).24kWh of Pylontech batteries with Lux controller BEV : Hyundai Ioniq5
  • Oscargrouch
    Oscargrouch Posts: 4,393 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    EricMears wrote: »
    8.2 Kwh - 62.5% of which gives just over 5.

    Well Eric, you must be up around the 13 kWh by now, I am hitting the 9.4 kWH at 15:00. Lets see if the calculation works!
    2.5 kWp PV system, SSW facing, 45 Deg Roof. ABB Inverter, Monitor: 'Wattson'.
    Reg. for FIT Nov 2011. "It's not what you generate; it's how you use it that matters". One very clean Vauxhall Diesel Sri, £30.00 Road Tax: B)

    Definition of 'O's = kWh/kWp (kWh = your daily & accurate Generation figure) (kWp = the rated output of your PV Panels).
  • EricMears
    EricMears Posts: 3,306 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    edited 11 May 2012 at 3:49PM
    Well Eric, you must be up around the 13 kWh by now, I am hitting the 9.4 kWH at 15:00. Lets see if the calculation works!

    13.04Kwh at 15:40

    But it's really not that simple ! A belt of cloud over one of us but not the other might change things dramatically. As it happens, today is a day when multiple belts of cloud are moving past quite fast so although our peaks & troughs might be at different times they'll balance out.

    There's also the different roof angles to consider. Ideal slope today would be around 40 deg - so mine is too shallow & yours too steep - but last month (or again in August) yours is ideal and in depths of winter when yours is too shallow, mine will be much too shallow
    NE Derbyshire.4kWp S Facing 17.5deg slope (dormer roof).24kWh of Pylontech batteries with Lux controller BEV : Hyundai Ioniq5
  • sly_dog_jonah
    sly_dog_jonah Posts: 1,003 Forumite
    Car Insurance Carver!
    edited 12 May 2012 at 8:46AM
    EricMears wrote: »
    If the met office seaweed is working right, tomorrow should have us all dancing in the streets. If not, not !

    It's a bit early in the day to get the dancing shoes on, but we've notched 3.9kWh as of 0840 and currently generating 2.5kW. Looks like the first proper summers day out there in cider country, not a cloud in the sky. Bit too early to wake the neighbours with the lawnmower, but the washing machine is on.:cool:

    Fingers crossed for a generation record, not had one since early April and the sun is up for 2hrs longer.
    Cider Country Solar PV generator: 3.7kWp Enfinity system on unshaded SE (-36deg azimuth) & 45deg roof
  • Martyn1981
    Martyn1981 Posts: 15,374 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    It's a bit early in the day to get the dancing shoes on, but we've notched 3.9kWh as of 0840 and currently generating 2.5kW.

    Hoping not only for a record, but our first 20. We were generating 2kW at 7am, now holding at 2.85kw, and 7kWh's at 10am.

    Now, should I add a small west system, to compliment the east?

    Mart.
    Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
  • Oscargrouch
    Oscargrouch Posts: 4,393 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    Martyn1981 wrote: »
    Hoping not only for a record, but our first 20. We were generating 2kW at 7am, now holding at 2.85kw, and 7kWh's at 10am.

    Too much excitement has jinks the weather, more cloud than blue sky here now. :mad:
    2.5 kWp PV system, SSW facing, 45 Deg Roof. ABB Inverter, Monitor: 'Wattson'.
    Reg. for FIT Nov 2011. "It's not what you generate; it's how you use it that matters". One very clean Vauxhall Diesel Sri, £30.00 Road Tax: B)

    Definition of 'O's = kWh/kWp (kWh = your daily & accurate Generation figure) (kWp = the rated output of your PV Panels).
  • Martyn1981
    Martyn1981 Posts: 15,374 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    edited 12 May 2012 at 1:09PM
    Too much excitement has jinks the weather, more cloud than blue sky here now. :mad:

    She's getting there, 16kWh done, and running at 2.85kW (did sit at 3.1 from 11 till 12.30). ESE system probably good for another hour, then will drop off quick with this blue sky. What I really need is for the sky to go white, then we could get 800W+ till 6pm or later, otherwise, 200ish!

    Edit: Just checked the weather forecast for Cardiff, solid suns each hour till 2pm then cloudy suns the rest of the day - perfect. Exactly the same tomorrow - double perfect. I'm hoping that piece of seaweed they got off Eric is still working! M.

    Mart.
    Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
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