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Renewables: "talking 'bout my generation"

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Comments

  • Martyn1981
    Martyn1981 Posts: 15,403 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    dreaming wrote: »
    Question from PV novice -is there such a thing as "too much" generation?

    Have spent most of the weekend so far looking at how the sun moves round the roof and can see that I will get very good coverage (is there a proper term?) for good deal of the day from about 6.30a.m. (SE) to 6.00p.m. SW (but also hardly any shading on SE until 3.00p.m.) as I live in a bungalow with no trees and hardly any shading. So I can see that running electric heating in winter during daytime (gas ch other times) will use a good deal, but in summer will the generation be too much?

    You what!!! Too much generation!!!!!

    I know I suggested you pop onto this thread and insult Oscar and Shafeeq (;)) but I never said anything about blasphemy. :rotfl:

    Regarding light levels, I think there are proper terms, such as insolation levels etc, but daylight and sunlight probably suffice. Daylight is nice, with panels generating even out of the sun, but sunlight is the money maker.

    In the summer you'll probably be generating up to 9pm ish, but don't expect to boil a kettle for free.

    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.
  • dreaming
    dreaming Posts: 1,224 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    Martyn1981 wrote: »
    You what!!! Too much generation!!!!!

    I know I suggested you pop onto this thread and insult Oscar and Shafeeq (;)) but I never said anything about blasphemy. :rotfl:

    Regarding light levels, I think there are proper terms, such as insolation levels etc, but daylight and sunlight probably suffice. Daylight is nice, with panels generating even out of the sun, but sunlight is the money maker.

    In the summer you'll probably be generating up to 9pm ish, but don't expect to boil a kettle for free.

    Mart.

    Sorry - bows humbly in apology.

    Can't help looking at weather and thinking "that could be all mine". Patience has never been my strong point.
  • Oscargrouch
    Oscargrouch Posts: 4,393 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    dreaming wrote: »
    Sorry - bows humbly in apology.

    Can't help looking at weather and thinking "that could be all mine". Patience has never been my strong point.

    No need to apologise to Mart; he's used to it on hear.

    Take a look at this: Put in your address or use auto locate and you will see how the sun hits your roof on whatever day you want...:beer:

    http://www.suncalc.net/#/52.2405,-0.9027,12/2012.12.06/15:45
    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).
  • tunnel
    tunnel Posts: 2,601 Forumite
    Part of the Furniture 1,000 Posts Combo Breaker
    dreaming wrote: »
    Sorry - bows humbly in apology.

    Can't help looking at weather and thinking "that could be all mine". Patience has never been my strong point.

    :rotfl: We all do that even with the panels up and running.
    2 kWp SEbE , 2kWp SSW & 2.5kWp NWbW.....in sunny North Derbyshire17.7kWh Givenergy battery added(for the power hungry kids)
  • k66
    k66 Posts: 354 Forumite
    Part of the Furniture 100 Posts Combo Breaker
    Has anyone ever generated the maximum output of their panels?
    :hello:
  • k66 wrote: »
    Has anyone ever generated the maximum output of their panels?

    Maybe on the Equator ;)

    Have passed mine temporarily sometimes. Ie cloud to Sun.

    Most I've seen maintained for more than a few seconds was about 94%.

    This gonna start a new thread of competition? :D
  • EricMears
    EricMears Posts: 3,309 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    Well done: All you need to do now is discover where the >thanks< button is......


    Who am I supposed to be thanking for the sun shining ? I don't even think it would be appropriate to thank the forecasters for telling me in advance when it was going to shine (not that they often do !).
    NE Derbyshire.4kWp S Facing 17.5deg slope (dormer roof).24kWh of Pylontech batteries with Lux controller BEV : Hyundai Ioniq5
  • EricMears
    EricMears Posts: 3,309 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    10.59 kWh on Friday , 9.6 yesterday and 13.04 today. :beer:

    That's already brought Feb's daily average to just under the PVGIS forecast and another few days like that would be welcomed.

    Alas, our weather forecasters can claim very little credit. On each of the last three days they'd told me "mainly cloudy but a few sunny intervals".
    NE Derbyshire.4kWp S Facing 17.5deg slope (dormer roof).24kWh of Pylontech batteries with Lux controller BEV : Hyundai Ioniq5
  • tunnel
    tunnel Posts: 2,601 Forumite
    Part of the Furniture 1,000 Posts Combo Breaker
    Yes,not a bad day indeed Eric up here in N derbyshire,a very nice 13.855kWh in the bag today, 3 loads in dishwasher,roast beef dinner,5 cups of tea(caravan kettle) and not a single watt bought from the grid.:D

    Tunnel
    2 kWp SEbE , 2kWp SSW & 2.5kWp NWbW.....in sunny North Derbyshire17.7kWh Givenergy battery added(for the power hungry kids)
  • shafeeq
    shafeeq Posts: 973 Forumite
    Part of the Furniture 500 Posts
    Better then yesterday 8.19 kwh today.
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