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Renewables: "talking 'bout my generation"

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Comments

  • legoman62
    legoman62 Posts: 5,029 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    Rain all morning...not as forecast:angry:

    Only 0.15 O's today:D
    16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28° pitch. Minimal shade. Nov 2011 install. Hybrid car. Ripple Kirk Hill. N.E Lincs Coast.
  • Oscargrouch
    Oscargrouch Posts: 4,393 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    legoman62 wrote: »
    0.825 O's here today...Best day this month:)
    ajbell wrote: »
    A truly awful 0.085 Os today.
    Seriously :rotfl:
    Worse day of the month for me.....0.12 O's...smiley-laughing021.gif....coffee.gif
    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).
  • rodee13
    rodee13 Posts: 56 Forumite
    Fifth Anniversary Combo Breaker
    0.52 O's yday
    I am getting 5% difference between inverter reading and generation meter reading, is that normal ? Since installation inverter shows 100KWh (yo! i though my first 100KWh) and meter is showing 95KWh.
    I am aware the inverter probably uses up some of the generated power but is 5% the norm ? has there been cases where the meter needs replacement etc ?
    3.99KW SunEdison (14 * 285W) all black, SolarEdge inverter, iBoost+, 27 Oct 2015, London
    (40° tilt, 25° East from South, some tree shading from mid Oct to mid March)
  • ajbell
    ajbell Posts: 1,151 Forumite
    edited 11 December 2015 at 4:40PM
    I've had mine since Nov 12th and generated 112kwh.
    I've noticed that early in the morning my iboost shows enough to start exporting before anything shows on my geo 2 pv display.
    4kWp, South facing, 16 x phono solar panels, Solis inverter, Lincolnshire.
  • Markj1110
    Markj1110 Posts: 912 Forumite
    Very dull day yesterday, 0.10 O's !!! :eek:
    3.96 kWp System, SSE Facing, 30 Degree Pitch, 12 x 330W BenQ Panels, Solar Edge Inverter, Lincoln, Lincolnshire. Installed 26th May 2015.
  • countryman_2
    countryman_2 Posts: 421 Forumite
    Not too bad late morning onward at 0.78 O's today.
    4kw PV fitted 4th July 2014 (Green Energy NW £5600). WSW facing, 30 deg Pitch, Unshaded, Samil Solar River inverter, 16 Solar World Mono panels, Iboost on Immersion Heater. located in mid Lincolnshire.
  • EricMears
    EricMears Posts: 3,313 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    edited 11 December 2015 at 9:08PM
    rodee13 wrote: »
    0.52 O's yday
    I am getting 5% difference between inverter reading and generation meter reading, is that normal ? Since installation inverter shows 100KWh (yo! i though my first 100KWh) and meter is showing 95KWh.
    I am aware the inverter probably uses up some of the generated power but is 5% the norm ? has there been cases where the meter needs replacement etc ?
    There's a very long (& exceedingly tedious) 'explanation' of meter testing procedures and acceptable limits of accuracy at :-
    http://www.legislation.gov.uk/uksi/1998/1566/made/data.pdf

    From that, you may or may not find this of interest.
    The permitted margins of error shall be an error not exceeding plus 2.5 per cent. or minus 3.5per cent. at any load at which the meter is designed to operate.
    But loosely speaking, your TGM is allowed an error of 2.5% and the meter in the inverter doesn't need to comply with any regulations but has probably been made accurately enough to do so.

    If two 'certified' meters are both operating at opposite ends of the accuracy limits, an error of 6% between them would therefore be unremarkable.

    But 5% does strike me as rather high : my inverter actually reads 0.1% lower than the TGM although I think the norm amongst contributors to this page would be more like inverter reading 1% higher than TGM.


    HTH


    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
    Yee-haa, 1.4 O's on my SSW(yet again at this time of year I can't be bothered to check the others(knowing full well my WNW will disappoint))
    Had some good news today so will be indulging with my favourite past timesmiley-eatdrink048.gif
    2 kWp SEbE , 2kWp SSW & 2.5kWp NWbW.....in sunny North Derbyshire17.7kWh Givenergy battery added(for the power hungry kids)
  • legoman62
    legoman62 Posts: 5,029 Forumite
    Part of the Furniture 1,000 Posts Name Dropper
    Note to panels. Must try harder:(......made O.675 O's today:D
    16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28° pitch. Minimal shade. Nov 2011 install. Hybrid car. Ripple Kirk Hill. N.E Lincs Coast.
  • Oscargrouch
    Oscargrouch Posts: 4,393 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    1.04 O's today....coffee.gif
    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).
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