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  • FIRST POST
    • Kernel Sanders
    • By Kernel Sanders 16th Mar 12, 12:06 AM
    • 3,190Posts
    • 1,320Thanks
    Kernel Sanders
    Renewables: "talking 'bout my generation"
    • #1
    • 16th Mar 12, 12:06 AM
    Renewables: "talking 'bout my generation" 16th Mar 12 at 12:06 AM
    Please forgive the corny thread title inspired by The Who, but this post on the bloated 'how do I make the most of it' thread prompted me to initiate a new one...
    Hi Everyone,
    I haven't been here for a while, and am interested to see discussion of how much is being generated, rather than what to do with it.
    Originally posted by old grouser
    Well, there was yet another misty and bleak start in North Notts today (Thursday), but my SSW 3.92 kWp system was generating around 3kW for just a few minutes between 12.15 and 13.00, but enough to get the immersion heater hot enough for a shower. It seems to drop below that figure before it reaches 13.55 (optimum orientation). Final figure was just over 14kWh.

    BTW, there was an item about solar generation in Germany on the radio today; you can stream it here:
    http://www.bbc.co.uk/iplayer/episode/b01d2rvn/PM_15_03_2012/
    Just click on the speaker symbol on the left, then drag the time cursor at the bottom to 25mins 30 secs then release.
    Last edited by Kernel Sanders; 19-12-2012 at 7:01 PM.
Page 975
    • hollie.weimeraner
    • By hollie.weimeraner 18th Jan 18, 10:15 AM
    • 1,442 Posts
    • 855 Thanks
    hollie.weimeraner
    0.21 O's yesterday! Unless the sun comes out, this will probably turn out to be my worst month ever since install!!
    Originally posted by Markj1110
    Well 18 days into the month and only reached a 1/3 of PVGIS so like you this is on course to be my worst month ever unless there is a substantial upturn in the weather which doesn't look like there's any chance of that!
    3.975 KW Solar PV. 15 Canadian Black 265w panels with Sunny Boy 3600tl Inverter. SSE facing with 30 degree pitch. In occasionally sunny Sheffield.
    Toyota Auris Hybrid Tourer
    • Markj1110
    • By Markj1110 18th Jan 18, 12:05 PM
    • 881 Posts
    • 5,601 Thanks
    Markj1110
    0.37 O's yesterday! Still only at 25% PVGIS for month!.
    3.96 kWp System, SSE Facing, 30 Degree Pitch, 12 x 330W BenQ Panels, Solar Edge Inverter, Lincoln, Lincolnshire. Installed 26th May 2015.
    • DaddyR
    • By DaddyR 18th Jan 18, 3:41 PM
    • 3 Posts
    • 6 Thanks
    DaddyR
    An "O" is worked out from dividing the kWh produced in a day by the size of your system. So 10 kWh generated in a day on a 4kW system would be 2.5 O's.

    An Hawaii is 5 O's and a Maiden is 6 O's. See Oscar's sig for full details.
    Originally posted by ASavvyBuyer
    Thanks, that makes sense, I think, so let's test me. Yesterday, on my 3.92kWp setup, 10.79kWh were produced, so that is 2.75Os? And a Hawaii and a Maiden is good. So for January 2.75Os is OK?
    Last edited by DaddyR; 18-01-2018 at 3:42 PM. Reason: Added content
    • zeupater
    • By zeupater 18th Jan 18, 4:38 PM
    • 3,933 Posts
    • 4,942 Thanks
    zeupater
    Thanks, that makes sense, I think, so let's test me. Yesterday, on my 3.92kWp setup, 10.79kWh were produced, so that is 2.75Os? And a Hawaii and a Maiden is good. So for January 2.75Os is OK?
    Originally posted by DaddyR
    Hi

    Yes, for January 2.75kWh/kWp ('Os') is pretty good ... looking at PVOutput for yesterday the only system that bettered it was in Dorset, achieving 11.346kWh from a 4.05kWp system (2.8)

    If you're looking to monitor your system performance you should look at PVGIS ... there's information of how to use it & a links in the FAQ thread here (*section 5) on a useful blog site here, or if you're happy to just jump in at the deep end, via direct access at http://re.jrc.ec.europa.eu/pvgis/apps4/pvest.php# ... most of us use the site to generate a monthly target/forecast to measure performance against ...

    HTH
    Z
    "We are what we repeatedly do, excellence then is not an act, but a habit. " ...... Aristotle
    • ASavvyBuyer
    • By ASavvyBuyer 18th Jan 18, 4:58 PM
    • 601 Posts
    • 1,557 Thanks
    ASavvyBuyer
    0.59 O's for today. Best day of the year so far and also since mid November 2017.

    Now at 63% of PVGIS estimate for January.
    Rhondda Cynon Taf, 4kWp, W roof, 30° pitch, 16 x 8.33 Eternity 250w E+10 panels, Solar Edge SE4000-16A Inverter + P300 Optimisers & REUK Diverter
    + Toshiba RAS-10G2KVP-E Ultra High Efficiency Air Conditioner/Heat Pump
    • legoman62
    • By legoman62 18th Jan 18, 8:07 PM
    • 2,238 Posts
    • 11,340 Thanks
    legoman62
    0.6 O's today. At 33% PVGIS after 18 days
    E Coast. 16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28° pitch.
    Minimal shade. Nov 2011 install. N.E Lincs Coast. Hybrid car
    • zeupater
    • By zeupater 18th Jan 18, 10:11 PM
    • 3,933 Posts
    • 4,942 Thanks
    zeupater
    Well 18 days into the month and only reached a 1/3 of PVGIS so like you this is on course to be my worst month ever unless there is a substantial upturn in the weather which doesn't look like there's any chance of that!
    Originally posted by hollie.weimeraner
    ... Ye of little faith - yesterday the weatherman said that Saturday was going to be sunny, sunny, sunny .. - same one today is saying iffy, iffy, iffy .. - Oh well, so much for the £hundreds-of-millions spent on their supercomputers, back to the old pine-cone, seaweed, finger in the air & the odd look at some animated satellite images! ...

    I'm just taking comfort from the fact that we haven't had 5 consecutive days of zero production yet this month (as was the case in December!) ...

    HTH
    Z
    "We are what we repeatedly do, excellence then is not an act, but a habit. " ...... Aristotle
    • zeupater
    • By zeupater 18th Jan 18, 10:22 PM
    • 3,933 Posts
    • 4,942 Thanks
    zeupater
    0.59 O's for today. Best day of the year so far and also since mid November 2017.

    Now at 63% of PVGIS estimate for January.
    Originally posted by ASavvyBuyer
    Hi

    .. thinking about it, we last had the log-burner going at the weekend & the GCH on for a couple of hours on Tuesday ... apart from that it's been down to some reasonable sunshine/solar gain over the last couple of days & the heat-pump for which the PV's generation has done the 'heavy lifting', so it's just been ticking over in the evening !

    HTH
    Z
    "We are what we repeatedly do, excellence then is not an act, but a habit. " ...... Aristotle
    • Martyn1981
    • By Martyn1981 19th Jan 18, 8:08 AM
    • 6,323 Posts
    • 10,456 Thanks
    Martyn1981
    Thanks, that makes sense, I think, so let's test me. Yesterday, on my 3.92kWp setup, 10.79kWh were produced, so that is 2.75Os? And a Hawaii and a Maiden is good. So for January 2.75Os is OK?
    Originally posted by DaddyR
    You got a 'bond' double O's. Almost a TyphOOO. Yes we are that silly.

    Nice (for me) 1.13 O's yesterday. Now predicting 109% for January if the rest of the month is average.

    Weather reports are getting silly. Couple of days ago the long term (8 days) was almost all sunshine, now it's mostly grey and rain.
    Mart. Cardiff. 5.58 kWp PV systems (3.58 ESE & 2.0 WNW)

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
    • Merlin139
    • By Merlin139 19th Jan 18, 8:44 AM
    • 4,446 Posts
    • 18,529 Thanks
    Merlin139
    Another good day for January.

    2.48 O's

    Another 26.44 O's to beat best January 2015
    • Markj1110
    • By Markj1110 19th Jan 18, 10:15 AM
    • 881 Posts
    • 5,601 Thanks
    Markj1110
    0.87 O's yesterday.
    3.96 kWp System, SSE Facing, 30 Degree Pitch, 12 x 330W BenQ Panels, Solar Edge Inverter, Lincoln, Lincolnshire. Installed 26th May 2015.
    • legoman62
    • By legoman62 19th Jan 18, 9:03 PM
    • 2,238 Posts
    • 11,340 Thanks
    legoman62
    0.6 O’s here today....again
    E Coast. 16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28° pitch.
    Minimal shade. Nov 2011 install. N.E Lincs Coast. Hybrid car
    • Merlin139
    • By Merlin139 19th Jan 18, 10:15 PM
    • 4,446 Posts
    • 18,529 Thanks
    Merlin139
    1.06 O's here today
    • Martyn1981
    • By Martyn1981 20th Jan 18, 8:32 AM
    • 6,323 Posts
    • 10,456 Thanks
    Martyn1981
    Best get the good news in, as today and tomorrow are nothing but grey and heavy rain. So 1.3 O's yesterday and now predicting 113% for Jan if (oh boy!) the rest of the month is average.
    Mart. Cardiff. 5.58 kWp PV systems (3.58 ESE & 2.0 WNW)

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
    • Markj1110
    • By Markj1110 20th Jan 18, 10:33 AM
    • 881 Posts
    • 5,601 Thanks
    Markj1110
    0.76 O's yesterday.
    3.96 kWp System, SSE Facing, 30 Degree Pitch, 12 x 330W BenQ Panels, Solar Edge Inverter, Lincoln, Lincolnshire. Installed 26th May 2015.
    • ASavvyBuyer
    • By ASavvyBuyer 20th Jan 18, 11:28 AM
    • 601 Posts
    • 1,557 Thanks
    ASavvyBuyer
    0.29 O's for yesterday.
    Rhondda Cynon Taf, 4kWp, W roof, 30° pitch, 16 x 8.33 Eternity 250w E+10 panels, Solar Edge SE4000-16A Inverter + P300 Optimisers & REUK Diverter
    + Toshiba RAS-10G2KVP-E Ultra High Efficiency Air Conditioner/Heat Pump
    • legoman62
    • By legoman62 20th Jan 18, 6:43 PM
    • 2,238 Posts
    • 11,340 Thanks
    legoman62
    0.55 O's for us today
    E Coast. 16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28° pitch.
    Minimal shade. Nov 2011 install. N.E Lincs Coast. Hybrid car
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