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Solar PV Performance Thread - Post your monthly output

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Comments

  • Registered Users, Registered Users 2 Posts: 7,258 ✭✭✭SouthWesterly


    423 kwh this month. 3.24kw facing west



  • Registered Users, Registered Users 2 Posts: 12,496 ✭✭✭✭DrPhilG


    I'll chuck stats up soon, although I changed from 6.2 to 7.44kWp during the month so the comparisons to last year won't be worthwhile.



  • Registered Users, Registered Users 2 Posts: 65,919 ✭✭✭✭unkel
    Chauffe, Marcel, chauffe!


    That's nice @DrPhilG. 4 more 310W panels? Added to an existing string or a new one?

    We all need more. Much more. 😁



  • Registered Users, Registered Users 2 Posts: 2,418 ✭✭✭SD_DRACULA


    7kWp W Dublin. 20kWh battery

    Production: 878 - last year was 850 which is odd as last year's May was a much nicer month weather-wise

    Consumption: 738

    Import: 8 (as per Solis but real life is probably 30kwh or so, just from the daily trickle)

    Export: 171 (last year 435 but 5kwh battery at the time)

    Best day: 19th: 46

    Worst day: 17th: 9

    Car: 173



  • Registered Users, Registered Users 2 Posts: 2,529 ✭✭✭ECO_Mental


    Whats the size of your system, those are good numbers I don't think you have your details on the PVStats website.

    According the PVGIS-SARAH PV estimator May and June should be similar enough for my system its showing for June I should expect only maybe a 2% increase in production than May. I don't think you will see a 30% increase from May to June but I don't know your system and obviously we could have an exceptional dry clear month that could break records.

    6.1kWp south facing, South of Cork City



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  • Registered Users, Registered Users 2 Posts: 65,919 ✭✭✭✭unkel
    Chauffe, Marcel, chauffe!


    I only added a 2.7kwp array a few weeks ago, it should contribute significantly, I'm up to about 10-11kwp now, all south facing in sunny south county Dublin 😁



  • Registered Users, Registered Users 2 Posts: 15,780 ✭✭✭✭AndyBoBandy


    5.78kWp, SE/SW/NW, Fingal

    Total produced: 554.5kWh

    Best Day: 14th: 27.4kWh

    Worst Days: 9th & 17th: 6kWh




  • Registered Users, Registered Users 2 Posts: 687 ✭✭✭rgfuller


    7th Month

    Dublin - Lucan - May 22 - 7.12kW total installed (S: 3.45kW, E: 2.41kW, W: 1.38kW). E&W Optimised. 5KWh Battery, (30 S & 22.5 E/W degree pitch).

    Total Generation: 796kWh (217kWh consumed directly, 166kWh into battery, 413KWh to grid)

    Best Day: May 19th - 40.2kWh

    Worst Day: May 17th - 9.0kWh

    Total Consumption: 414kWh (92% Solar:8% Grid Import (32kWh))

    Milestones:

    49kWh to Eddi

    3rd Month Generation Exceeds Consumption

    12 Days no import 8, 14, 19, 20, 22, 23, 24, 25, 26, 27, 29, 31



  • Moderators, Sports Moderators Posts: 19,287 Mod ✭✭✭✭slave1


    Midlands

    4.1kWp SW with Winter Shading, 3.3kWp NE

    582kW imported (two EV household)

    782kWh Generated

    669.22kWh consumed

    316kWh diverted to Eddi

    189.1kWh diverted to Zappi

    Approx 1159.8kms of range into the EVs

    Highest was 42.3kWh

    Lowest was 8.1kWh

    70% self sufficient (excluding Evs)

    53% self sufficient (including Evs)

     

    Monthly cash saving based on average daily load and all non-load items like dishwasher/washing machine/immersion at night rate, €68.07



  • Registered Users, Registered Users 2 Posts: 12,496 ✭✭✭✭DrPhilG


    Added to existing south facing string. Its now maxed out with 13 panels. Might fit another 2 on the house if I ever find any more of the 310w floating around.

    Upping the 5kW inverter to 6kW next week.



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  • Registered Users, Registered Users 2 Posts: 2,529 ✭✭✭ECO_Mental


    You got me thinking about this again and I had taken a meter read back on the 3rd March and one again on the 24th May (so a good long period) and my shelly reading was 1.1% different than my ESB meter. Also I don't know what hour of the day the meter read was taken so it could even be tighter. So going forward I might start using the Shelly for reporting PV production. If I do I have just gained an extra 50 kWh over the past 3 months ☺️ (about 2% different to the Solis web portal.

    Makes sense really because I use the ShlleyEM for all the rest of my energy metering and reporting so it will tie in with this.

    6.1kWp south facing, South of Cork City



  • Registered Users, Registered Users 2 Posts: 65,919 ✭✭✭✭unkel
    Chauffe, Marcel, chauffe!


    Did you buy the inverter already? I heard solartricity are sold out of Solis, waiting for another batch from China to land in July. Also, is that a wise upgrade? Very little of the time will you actually produces over 5kW once you go to a 6kW inverter. The difference is marginal, worth probably only a fraction of the upgrade cost of the inverter?


    Mate just bought an as good as new 5kW Solis hybrid inverter for €600 with all the bits included even wifi dongle. Jealous as that would suit me perfectly too!



  • Registered Users, Registered Users 2 Posts: 12,496 ✭✭✭✭DrPhilG


    Inverter has arrived so just waiting for the installer for the date. He said it's a very quick swap.


    I've been getting some clipping already with the bigger array, but also the other benefit is 5kW charge and discharge rate compared to 3.5 currently. I've exported a fair bit in the last week just because the panels were generating 6.5-7kW for long periods and the battery couldn't take all of the load.



  • Registered Users, Registered Users 2 Posts: 65,919 ✭✭✭✭unkel
    Chauffe, Marcel, chauffe!


    Ah the charge / discharge makes a difference for sure. I was thinking of the Solis range and the 5kW and 6kW hybrid inverters both charge and discharge at 5kW max, so no difference between the two. Would you not just swap the units yourself? It's an easy DIY job. But I guess if your installer does it, it keeps you in their good books in case you need support from them in future.


    I'm limited myself to 3.2kW charge and discharge and I've near 11kwp of south facing, so even with my high base load, I've started to export a lot recently. And don't really want to micro manage. I guess a wifi new model Zappi might be ordered soon...



  • Registered Users, Registered Users 2 Posts: 1,625 ✭✭✭THE ALM


    8.16kwp facing 200° at 35° in the midlands

    989kWh produced, thought we would break the 1000kWh but yesterday let us down.

    705kWh consumed, had a few days away in the middle of the month so exporting a bit more than usual.

    110.2kWh to Eddi

    171.9kWh to Zappi

    Best day 54.8kWh

    Worst day 9.5kWh

    Most current bill (Monday) was for €89 which covers all transport and hot water as well, taking out standing charges then about €20.




  • Registered Users Posts: 192 ✭✭ELCAT2009


    Forgot to do April stats so doing both in this post.


    April Stats

    6.2kWp (3.1 SE/3.1 SW (in reality probably more like 2.5 on SW as 2 panels impacted by chimney from around 11am), 7.2kWh battery (added 2.4 in April to the original 4.8 install), North Galway.

    Generation – 607.2kWh,

    Export – 112.6kWh

    Import – 811.1kWh (564.4kwh for zappi),

    Best day – 24th, 35.7kWh

    Worst day - 11th , 4.2kWh


    May Stats

    6.2kWp (3.1 SE/3.1 SW (in reality probably more like 2.5 on SW as 2 panels impacted by chimney from around 11am), 7.2kWh battery, North Galway.

    Generation – 726.6kWh,

    Export – 142.6kWh

    Import – 667.3kWh (638.4kwh for zappi),

    Best day – 28th, 38.9kWh (record high for my install!)

    Worst day - 1st , 9.3kWh

    Most of my import was for my EV for the month. Car is in use more and more (clocked over 3,000km this month) Disappointed to have exported so much...will have to live with it until the 2nd ICE car gets changed for EV down the road in a few years!



  • Registered Users, Registered Users 2 Posts: 16,595 ✭✭✭✭Ha Long Bay


    860KW this month here with 150KW going to the eddi which I am using to boost in the morning for hot water instead of heating via gas.




  • Registered Users, Registered Users 2 Posts: 625 ✭✭✭handpref


    5.4 kwp east west split

    516 kWh produced for May



  • Registered Users, Registered Users 2 Posts: 5,003 ✭✭✭paulbok


    6.84kWp facing 200° at 35° in the West

    May

    Produced: 829.4kWh

    Best day: 27th - 40.7kWh

    worst day: 01st - 12kWh

    To Eddi: 81.4kW

    Exported: 265.7kW



  • Registered Users, Registered Users 2 Posts: 12,496 ✭✭✭✭DrPhilG


    May Stats

    6.2kWp (2.8 south/3.4 west), 20kWh battery, Zappi & Eddi – Donegal

    CHANGING ON MAY 21ST TO:

    7.4kWp (4.03 south/3.4 west), 20kWh battery, Zappi & Eddi – Donegal


    Generation – 699.9kWh


    Export – 24.8kWh


    Import – 145.2kWh


    Best day – 28th 40kWh

    Worst day - 2nd, 10.8kWh


    Days with less than 1kWh purchased - 21


    Didn't bother with the comparisons to last year, no point since the capacity increased considerably.



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  • Moderators, Sports Moderators Posts: 19,287 Mod ✭✭✭✭slave1


    Last year was way better for me every month so far so I don't bother either



  • Registered Users, Registered Users 2 Posts: 12,496 ✭✭✭✭DrPhilG


    Yeah last May was nuts. Even with the additional panels this year I didn't surpass the 2021 figures. Generated about 75kWh less.



  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭celtic_oz


    6.2Kwp May stats





  • Registered Users, Registered Users 2 Posts: 3,239 ✭✭✭irishchris


    1.125 MW for June.


    Nice to break through the megawatt barrier for first time since adding the new string. System was down for two days with adding battery system so good return considering.



  • Moderators, Society & Culture Moderators Posts: 40,022 Mod ✭✭✭✭Gumbo


    May.

    4.7 kW Array (3kW South and 1.7kW North).




  • Registered Users, Registered Users 2 Posts: 3,977 ✭✭✭mp3guy


    Record for me this month: 16kWp DC / 11kWp AC Cork:

    South: 687.63kWh
    East/West: 1266.29kWh
    PV Total: 1953.92kWh
    Best Day: 27th (101.55kWh)
    Worst Day: 9th (17.23kWh)
    
    Grid Export: 677.87kWh
    Grid Import: 74.02kWh
    Surplus Energy: 603.85kWh
    
    CO2 Saved: 652.17kg
    
    House Usage: 852.51kWh
    Car Usage: 296.80kWh
    Water Usage: 200.76kWh
    


  • Registered Users Posts: 488 ✭✭septicsac


    May 843kwh generated, less than march for me, a lot of clo

    udy days



  • Moderators, Society & Culture Moderators Posts: 16,521 Mod ✭✭✭✭Manic Moran


    Deleted due to location.

    Post edited by Manic Moran on


  • Registered Users, Registered Users 2 Posts: 12,496 ✭✭✭✭DrPhilG




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  • Registered Users, Registered Users 2 Posts: 2,529 ✭✭✭ECO_Mental


    Just looking at my numbers for June and its looking like its going to be below par month for me based on the PVGIS Sarah estimates. I need 60 kWh from today and tomorrow to get me above the estimate and these two days aren't looking great...neither is the next week

    Will certainly be below March April & Mays numbers


    6.1kWp south facing, South of Cork City



  • Registered Users, Registered Users 2 Posts: 2,593 ✭✭✭bullit_dodger


    Colors reversed but I have the same chart (albeit I start mine at last Nov - LOL)

    Should be good to clear 5-10% over June's estimate (here in Dublin)



  • Registered Users, Registered Users 2 Posts: 12,496 ✭✭✭✭DrPhilG


    Barring a disaster tomorrow I'll meet my expected target for the month.


    Mind you my target is just what I got last year, adjusted for the additional capacity. So monthly target is 801kWh. I'm now on 784kWh so only need 17kWh tomorrow.



  • Registered Users, Registered Users 2 Posts: 5,003 ✭✭✭paulbok


    Gonna be 5kWh short for the month. But over 100kWh ahead of forecast for the year.

    Edit: ended up 2kWh ahead for the month afterall 😁

    Post edited by paulbok on


  • Registered Users, Registered Users 2 Posts: 2,749 ✭✭✭yankinlk


    700 in May and 657 in June. First year so still learning what's normal.

    really happy with the self-use rate. 5kw battery on a 6.6kw system.

    Post edited by yankinlk on


  • Moderators, Education Moderators, Home & Garden Moderators Posts: 8,242 Mod ✭✭✭✭Jonathan


    4.83kWp south facing, Dublin Fingal


    626kWh generated

    204kWh exported (67% solar self-consumption)

    14kWh imported (4kWh day, 10kWh night)

    34kWh generated best day (1st June)

    5kWh generated worst day (5th June)



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  • Registered Users, Registered Users 2 Posts: 12,496 ✭✭✭✭DrPhilG


    June Stats

    7.44kWp (4.03 south/3.41 west), 20kWh battery, Zappi & Eddi – Donegal


    Generation – 809kWh


    Export – 50.3kWh


    Import – 3.8kWh


    Best day – 4th, 50.3kWh

    Worst day - 2nd, 11.5kWh


    Days with less than 1kWh purchased - all of them.

    Post edited by DrPhilG on


  • Registered Users, Registered Users 2 Posts: 1,874 ✭✭✭garo


    4.8kW EW Dublin. 10kWh DIY battery

    June 2022 (kWh):

    Production: 621.1 (560 predicted, 663 last year)

    Consumption: 758.6

    Import: 151(39d, 112n)

    Export: 13.5 (90 last year) - would ya look at that!

    Best day: 20th: 31.8

    Worst day: 5th: 5.7



  • Registered Users, Registered Users 2 Posts: 3,239 ✭✭✭irishchris


    9.86kwp (2.88 West & 6.98 South)

    June 2022:

    Generation: 1012kwh

    Import: 18kwh

    Export : 556kwh --- FIT@13.5c = € 75



  • Registered Users, Registered Users 2 Posts: 5,003 ✭✭✭paulbok


    6.84kWp south facing, Roscommon. 4.8kw battery.


    759kWh generated (757 forecast)

    (83.1kWh to Eddi)

    (92% of total consumption self produced)

    Total consumption 675kWh. 215kWh discharged from battery. 183kWh exported

    49kWh imported (no day/night meter, but bulk imported during night, early morning)

    47.6kWh generated best day (20th June)

    14kWh generated worst day (24th June)



  • Registered Users, Registered Users 2 Posts: 2,529 ✭✭✭ECO_Mental


    June 2022

    6.1 kWp South facing in Cork

    Generated 742 kWh

    Used 327 kWh (44%); exported 415 kWh

    Money Saved on energy bill from PV for this month 327kWh * €0.30 = €98.10

    Estimated Potential FIT @14cent/unit = €58.10 (not realised as don't have smart meter and I am with EI so just a hopeful guess)

    Overall for the month it was below expected and even less than March, but overall my system is about 11.5% over the estimated PVGIS SARAH estimate. I included this month how much my PV system saved me on my electricity bill as its a simple calc and it should be useful for people to see the potential.


    6.1kWp south facing, South of Cork City



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  • Registered Users, Registered Users 2 Posts: 2,593 ✭✭✭bullit_dodger


    South Dublin rocking in with 5.3Kwp split (1.5Kwp East/3.8Kwp West)

    Not one "perfect day" with smooth curves. Shame as I was quite hoping to see what the max daily system generation is. The monthly max I did get was 33.93Kwhr (June 20th), but that was beaten by 34.6Kwhr on May 19th, so there's probably 35-36Kwhr in it.....if we had a clear coolish day in June. Maybe next year. LOL

    Still overall pretty happy with this as it's close to May and was still 14% over the PVGIS estimate.

    Dare I say it.....days are getting shorter now folks <sniff>




  • Registered Users, Registered Users 2 Posts: 687 ✭✭✭rgfuller


    8th Month

    Dublin - Lucan - June 22 - 7.12kW total installed (S: 3.45kW, E: 2.41kW, W: 1.38kW). E&W Optimised. 5KWh Battery, (30 S & 22.5 E/W degree pitch).

    Total Generation: 764kWh (224kWh consumed directly, 158kWh into battery, 382KWh to grid)

    Best Day: June 20th - 41.0kWh

    Worst Day: June 5th - 7.0kWh

    Total Consumption: 420kWh (91% Solar:9% Grid Import (39kWh))

    Milestones & Info:

    59kWh to Eddi

    4th Month Generation Exceeds Consumption

    12 Days no import (same as May) :: 4, 7, 8, 11, 15, 19, 20, 21, 23, 25, 26, 30.

    Passed 3MWh generated since install last October.

    Monthly Expected FIT €53.48 :: Money Saved on Energy from PV :: €85.69 :: Total Savings €139.17 for June.

    Expected FIT since Feb 15th €188.30 :: (24KWh Feb, 254KWh Mar, 272KWh Apr, 413KWh May, 382KWh June : Total 1325KWh)



  • Registered Users, Registered Users 2 Posts: 1,625 ✭✭✭THE ALM


    South Roscommon, 8.16Kwp, facing 210° 35°

    Total generation 942kWh

    Consumed 730kWh

    Energy from Grid 27kWh

    Energy to Grid 222kWh

    To the Eddi 165.2kWh

    To the Zappi 228.7kWh

    To the Battery 151.6kWh

    Not a perfect day in the month with only a few over 40kWh with the best at 55kWh and the worst 12.4kWh. Up 77kWh on projected figure and down 47kW on last month, should be able to push past the 1MWh if we had a few good days in the month.

    Hopefully the new batteries are on the high seas so will be able to make more use of the generation.




  • Moderators, Sports Moderators Posts: 19,287 Mod ✭✭✭✭slave1


    Nice one, almost hit the 1Mw



  • Moderators, Sports Moderators Posts: 19,287 Mod ✭✭✭✭slave1


    Housekeeping, your grid-battery-house losses look low, someone here measured them and about 9% in and out so around 18% in total



  • Registered Users, Registered Users 2 Posts: 1,646 ✭✭✭celtic_oz


    6.2Kwp

    only gave 8% to the grid




  • Registered Users, Registered Users 2 Posts: 2,593 ✭✭✭bullit_dodger


    GivEnergy's batteries rock in (as per the spec) at 92% efficiency. I'm actually low (on the poor side) with 91%. The numbers I've listed are from the inverter itself, (Battery in & battery out). Sure, I guess the inverter could be wrong/lying, but without doing a couple of tests myself taking note of the ESB meter, setting the house to a super low base load, charging the battery, then discharging the battery with a known load and counting the time, or using something like,

    Power Meter Electricity Usage Monitor, Maxcio Upgraded 13A Energy Monitor with Backlight LCD Display/7 Monitoring Modes/Backup Battery, Overload Warning Watt Volt Amp Meter UK Plug for Home Appliances : Amazon.co.uk: DIY & Tools

    (I own a similar plug above)......it's hard to definitively say it's wrong. When we get back to wintertime and I'm charing the battery to 100% from grid at nighttime I might give it a lash to see if it's right/wrong, but yeah, the spec is 92% or so they claim.



  • Registered Users, Registered Users 2 Posts: 2,418 ✭✭✭SD_DRACULA


    7kwp West Dublin, 20kwh battery, S facing

    Best day 25th: 47kwh

    Worst day 5th: 7kwh

    Battery efficiency: 91%

    Just to compare with last year which was about 100kwh better




  • Moderators, Sports Moderators Posts: 19,287 Mod ✭✭✭✭slave1


    Midlands

    4.1kWp SW with Winter Shading, 3.3kWp NE

    415kW imported (two EV household)

    752kWh Generated

    656.37kWh consumed

    327kWh diverted to Eddi

    127.9kWh diverted to Zappi

    Approx 823.7kms of range into the EVs

    Highest was 42.5kWh

    Lowest was 11.9kWh

    81% self sufficient (excluding Evs)

    61% self sufficient (including Evs)

     

    Monthly cash saving based on average daily load and all non-load items like dishwasher/washing machine/immersion at night rate, €66.77

    April/May/June have been poor compared to last year, around 10% adverse



  • Registered Users Posts: 488 ✭✭septicsac


    852 Generated, still not matched March, albeit one day less.



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