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  • FIRST POST
    • Kernel Sanders
    • By Kernel Sanders 15th Mar 12, 11:06 PM
    • 3,437Posts
    • 1,411Thanks
    Kernel Sanders
    Renewables: "talking 'bout my generation"
    • #1
    • 15th Mar 12, 11:06 PM
    Renewables: "talking 'bout my generation" 15th Mar 12 at 11:06 PM
    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 6:01 PM.
Page 1058
    • Coastalwatch
    • By Coastalwatch 13th Sep 18, 10:31 PM
    • 511 Posts
    • 1,983 Thanks
    Coastalwatch
    I'm on 56.2% at the moment.
    Originally posted by KevinG
    OK, don't rub it in!
    East coast, lat 51.97. 8.26kw SSE, 23 pitch + 0.59kw WSW vertical. Nissan Leaf plus one dirty diesel. Still waiting for V2H and home storage to become available at sensible cost.
    • legoman62
    • By legoman62 14th Sep 18, 7:51 PM
    • 2,715 Posts
    • 14,049 Thanks
    legoman62
    2.55 O's here on the E coast today
    16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28 pitch.
    Minimal shade. Nov 2011 install. N.E Lincs Coast. Hybrid car
    • Oscargrouch
    • By Oscargrouch 14th Sep 18, 8:06 PM
    • 3,296 Posts
    • 16,090 Thanks
    Oscargrouch
    2.55 O's here on the E coast today
    Originally posted by legoman62
    And on the Middle Ground, 2.36 O's......
    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

    Definition of 'O's = kWh/kWp (kWh = your daily & accurate Generation figure) (kWp = the rated output of your PV Panels).
    • JKenH
    • By JKenH 14th Sep 18, 8:34 PM
    • 322 Posts
    • 1,382 Thanks
    JKenH
    Full day after all but only 1.77 O’s.
    Northern Lincolnshire. 7.8 kWp system, (4.2 kw west facing panels , 3.6 kw east facing), Solis inverters, Solar IBoost water heater, Mitsubishi SRK35ZS-S and SRK20ZS-S Wall Mounted Inverter Heat Pumps
    • Martyn1981
    • By Martyn1981 15th Sep 18, 6:47 AM
    • 8,327 Posts
    • 13,108 Thanks
    Martyn1981
    1.93 O's yesterday, and 3.62 O's the day before. Mixed month, predicting 98% at the moment. Next week of weather looks 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.
    • shavy65
    • By shavy65 15th Sep 18, 10:28 AM
    • 470 Posts
    • 1,439 Thanks
    shavy65
    Poor day yday ending up with 2.2 O`s. Although been averaging 4 O`s per day for September so far.

    On another note my daily electricity import has more than doubled at some point over the last 14 days.... WTF!
    My first port of call will be my `iBoost style` device
    3.975 kWp System, South facing, 21 degree pitch, 15 x Canadian Solar Elps, Samil Inverter, location NE Scotland (Fraserburgh) Bring on the Sun
    • KevinG
    • By KevinG 15th Sep 18, 11:39 AM
    • 1,422 Posts
    • 3,889 Thanks
    KevinG
    A disappointing 2.73 Os yesterday but today looking much better and I've already passed yesterday's total.
    Baxi Ecogen 24/1.0 Micro-CHP boiler installed Oct-2010; 2kWp Solar PV - 10*200W Kioto, SMA Sunny Boy 2000HF, SSE facing, some shading in winter, 37 pitch, installed Jun-2011, inverter replaced Sep-2017.
    • KevinG
    • By KevinG 15th Sep 18, 6:18 PM
    • 1,422 Posts
    • 3,889 Thanks
    KevinG
    Finished on 4.7 Os, again slightly disappointing but just under 65% of PVGIS at the half-way point.
    Baxi Ecogen 24/1.0 Micro-CHP boiler installed Oct-2010; 2kWp Solar PV - 10*200W Kioto, SMA Sunny Boy 2000HF, SSE facing, some shading in winter, 37 pitch, installed Jun-2011, inverter replaced Sep-2017.
    • JKenH
    • By JKenH 15th Sep 18, 6:25 PM
    • 322 Posts
    • 1,382 Thanks
    JKenH
    1.08 kWh. Definitely in the wrong part of the world.
    Northern Lincolnshire. 7.8 kWp system, (4.2 kw west facing panels , 3.6 kw east facing), Solis inverters, Solar IBoost water heater, Mitsubishi SRK35ZS-S and SRK20ZS-S Wall Mounted Inverter Heat Pumps
    • Oscargrouch
    • By Oscargrouch 15th Sep 18, 7:01 PM
    • 3,296 Posts
    • 16,090 Thanks
    Oscargrouch
    1.08 kWh. Definitely in the wrong part of the world.
    Originally posted by JKenH
    Me too; only 3.48 O's......
    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

    Definition of 'O's = kWh/kWp (kWh = your daily & accurate Generation figure) (kWp = the rated output of your PV Panels).
    • ASavvyBuyer
    • By ASavvyBuyer 15th Sep 18, 7:32 PM
    • 990 Posts
    • 2,877 Thanks
    ASavvyBuyer
    2.19 O's for today and 2.35 O's for yesterday.


    52% of PVGIS September estimate, halfway through the month.
    Rhondda Cynon Taf, 4kWp, W roof, 30 pitch, 16 x 8.33 Eternity 250w E+10 panels, Solar Edge SE4000-16A Inverter + P300 Optimisers. Inst Aug 2015.
    REUK Diverter, Toshiba RAS-10G2KVP-E Ultra High Efficiency Air Conditioner/Heat Pump, Kia Soul EV & 100% Green Electric Tariff.
    • legoman62
    • By legoman62 15th Sep 18, 11:16 PM
    • 2,715 Posts
    • 14,049 Thanks
    legoman62
    Bad day at Black Rock yesterday = 1.325 O's
    16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28 pitch.
    Minimal shade. Nov 2011 install. N.E Lincs Coast. Hybrid car
    • shavy65
    • By shavy65 16th Sep 18, 6:06 AM
    • 470 Posts
    • 1,439 Thanks
    shavy65
    Poor day yday ending up with 2.2 O`s. Although been averaging 4 O`s per day for September so far.

    On another note my daily electricity import has more than doubled at some point over the last 14 days.... WTF!
    My first port of call will be my `iBoost style` device
    Originally posted by shavy65
    Morning guys, hoping for a wee bit of help here!
    The red LED on my electric meter appears to be blinking every 3 to 4 secs (importing over 1000w?)
    I started wondering about the house turning off various devices last night, still no change. I then tried turning each circuit breaker off one by one, no change.
    Finally I tried switching off the main fuse box....still the meter flashes, surely this isn`t right? Faulty meter?
    TIA.
    3.975 kWp System, South facing, 21 degree pitch, 15 x Canadian Solar Elps, Samil Inverter, location NE Scotland (Fraserburgh) Bring on the Sun
    • Martyn1981
    • By Martyn1981 16th Sep 18, 6:15 AM
    • 8,327 Posts
    • 13,108 Thanks
    Martyn1981
    Morning guys, hoping for a wee bit of help here!
    The red LED on my electric meter appears to be blinking every 3 to 4 secs (importing over 1000w?)
    I started wondering about the house turning off various devices last night, still no change. I then tried turning each circuit breaker off one by one, no change.
    Finally I tried switching off the main fuse box....still the meter flashes, surely this isn`t right? Faulty meter?
    TIA.
    Originally posted by shavy65
    Your theory sounds right, and hard to argue with a main fuse switch off. Daft question but is there any other supply also running off the mains, like a small garage CU?

    Does it stop flashing and show solid red if you are generating enough to export?

    Is the meter clocking up these flashes with around one extra unit every hour?

    Report it asap and compare import to previous years. Make sure that low summer demand is noted due to PV, and not a more average national figure, if estimations are needed.
    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.
    • shavy65
    • By shavy65 16th Sep 18, 6:55 AM
    • 470 Posts
    • 1,439 Thanks
    shavy65
    Your theory sounds right, and hard to argue with a main fuse switch off. Daft question but is there any other supply also running off the mains, like a small garage CU?

    Does it stop flashing and show solid red if you are generating enough to export?

    Is the meter clocking up these flashes with around one extra unit every hour?

    Report it asap and compare import to previous years. Make sure that low summer demand is noted due to PV, and not a more average national figure, if estimations are needed.
    Originally posted by Martyn1981
    Morning Mart, no there`s no other supplies from the mains.
    Yes it still shows solid red when exporting.
    Yup the meter is rapidly clocking up!

    Good point on the estimations, thanks!
    3.975 kWp System, South facing, 21 degree pitch, 15 x Canadian Solar Elps, Samil Inverter, location NE Scotland (Fraserburgh) Bring on the Sun
    • Oscargrouch
    • By Oscargrouch 16th Sep 18, 7:18 PM
    • 3,296 Posts
    • 16,090 Thanks
    Oscargrouch
    Very poor day today...2.08 O's.....
    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

    Definition of 'O's = kWh/kWp (kWh = your daily & accurate Generation figure) (kWp = the rated output of your PV Panels).
    • JKenH
    • By JKenH 16th Sep 18, 7:55 PM
    • 322 Posts
    • 1,382 Thanks
    JKenH
    Very poor day today...2.08 O's.....
    Originally posted by Oscargrouch
    Beats me. 1.8 Os
    Northern Lincolnshire. 7.8 kWp system, (4.2 kw west facing panels , 3.6 kw east facing), Solis inverters, Solar IBoost water heater, Mitsubishi SRK35ZS-S and SRK20ZS-S Wall Mounted Inverter Heat Pumps
    • legoman62
    • By legoman62 16th Sep 18, 8:00 PM
    • 2,715 Posts
    • 14,049 Thanks
    legoman62
    Very poor day today...2.08 O's.....
    Originally posted by Oscargrouch
    Not me....for a change 2.6 O's here today
    Passed 3000kWh for this year so far
    16 Sanyo Hit 250s.4kWp SMA 3.8kWp inverter. SW roof. 28 pitch.
    Minimal shade. Nov 2011 install. N.E Lincs Coast. Hybrid car
    • Martyn1981
    • By Martyn1981 17th Sep 18, 7:01 AM
    • 8,327 Posts
    • 13,108 Thanks
    Martyn1981
    Well ......... at 10am we were generating 3.5kW, so I popped on the sunnies and took the dog for a walk.

    Got back an hour later and dried us both off from all the rain.

    Total generation for the day 4.3kWh!
    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.
    • JKenH
    • By JKenH 17th Sep 18, 7:52 AM
    • 322 Posts
    • 1,382 Thanks
    JKenH
    Well ......... at 10am we were generating 3.5kW, so I popped on the sunnies and took the dog for a walk.

    Got back an hour later and dried us both off from all the rain.

    Total generation for the day 4.3kWh!
    Originally posted by Martyn1981
    You live in Wales so are you really surprised? Now, I might have cause to be upset living near sunny Scunny.
    Northern Lincolnshire. 7.8 kWp system, (4.2 kw west facing panels , 3.6 kw east facing), Solis inverters, Solar IBoost water heater, Mitsubishi SRK35ZS-S and SRK20ZS-S Wall Mounted Inverter Heat Pumps
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