Solar PV Performance Thread - Post your monthly output
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I think there maybe something wrong with the numbers there. I've a 5.3Kwp system split exactly east/west and I rocked in with 406Kwhr for the month. It would be "unlikely" that I generate 63% more with a (very slightly) smaller system with the same alignment. So that 248Kwhr might be "off". Do you have some shading or something? if it helps here is my daily generation for the month.
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Sorry mate, you've lost me there. Where are you getting the 363Kwhr? The full monthly generation report from my site's telemetry is actually.....
And to check I added up all the individual days, and indeed got ~410 Kwhr. Numbers look good to me?!
I'm in Dublin 16, so close enough that the distance would make feck all difference in the weather. The "most likely" cause is that you have an array that is non-performant. Something definitely isn't right there.
Could you post your daily generation (only) instead of the "daily house consumption"
FYI: Since we are very close system wise 5.3Kwp verses 5.4kwp (as well as orientation), my figures for the last few months were.
Edit - Perhaps the reporting that they have is "misleading". You have generation to Home, but I wonder should they have "generation to battery" also , and infact you might be generating ok, but the report is misleading? Again, if you have a way of isolating out the "generation only" that might be worth looking at. But for sure, 250Kwhr would seem wrong to me
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I was working off what I thought were your totals- my 4 year old wasn’t helping my concentration levels today !
You were spot on with separating out my figures, the new giv energy site is not half as clear as the old one.
I added the totals given under the headings of generation to home, battery and grid- they add up to the daily total - thank god ! Because I was beginning to think I was loosing it.
16.92 kWh on the 2nd April - the three totals add up …
So to get things back on track it’s a monthly total of 372kwh- well spotted 👌
Small world, D16- many a happy memory of living there.
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April Stats
3.3kWp (S), 10kWh battery, 22 deg Slope
Generation – 372.34 kWh Consumed - 371.81 kWh Import – 65.43 kWh Export – 14.99 kWh Edd9 - 22.2 kWh Zappi - 84.2 kWh
Meter Readings 05223 (01096 Day - up 3 / 04127 Night - up 59) - Gas 6307
Totals so far:
Month | 2020 | 2021 | 2022 | ---------+--------+--------+--------+ January | 75 | 56 | 81 | February | 122 | 142 | 111 | March | 200 | 269 | 370 | April | 279 | 373 | 372 | May | 396 | 430 | | June | 264 | 425 | | July | 261 | 387 | | August | 254 | 264 | | September| 268 | 248 | | October | 151 | 185 | | November | 90 | 78 | | December | 56 | 52 | | ---------+--------+--------+--------+ Total | 2.41 | 2.90 | 0.93 |
Boards.ie - Solar Capacity and production analysis - Google Sheets
Post edited by championc on1 -
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974 kWh Generated for April (would have been nice to have had a good day to end the month with, and hit the 1MWh mark, but definitely not complaining...)
March was 756kWh. I've a low pitched roof.
Used 80%.
Solis is reporting 12kWh import. My Smart Meter/Bord Gais recorded 38kWh import for the month.
Solar Forecast tracked pretty well (bottom graph) - well enough to auto-charge batteries at night for the most part.
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763.9 kWh for April , only beat March by 3 kWh... used 43% of it and considering I don't have battery or EV yet I think that's ok. (6.1 kWp Cork)
Looking at the google docs sheet and the PVStats website my system looks like its one the best performing systems and for April I generated 125.25 kWh/kWp installed. My EV is due to be built next week so might have it early June so I am looking forward to that.
6.1kWp south facing, South of Cork City
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