4.46kWp SW facing system in North Co Dublin. 41 degree roof. Solis 6kW Hybrid inverter, 5kWh battery, Eddi, and Zappi car charger
November 2022 generation 176.1kWh with 69% self-consumption. This is almost 100kWh less generation than October.
Worst day 26th Nov - 0.4kWh
Best day 16th Nov - 12.3kWh
Note on my self-consumption. This should be higher; however, once generation stops for the day my inverter bounces between import and export. This means at least 1kWh export even without generation that day and also import even if I have enough in the battery. Ticket open with Solis but they're slower than molasses.
I am strictly E/W (well 100 and 280 really) and 22 degree slope which means poorer output in winter. Also I get shading on the eastern half every morning from Nov to Feb. Decided optimisers weren't worth it because output in those 3-4 months is so low anyway.
November Stats
2.7kWp (S), 20kWh battery, 22 deg Slope, Sth Dublin (Shed 4 not generating anything)
Generation – 95.54 kWh Consumed - 271.60 kWh Import – 236.16 kWh Export – 7.28 kWh Eddi - 2.1 kWh Zappi - 0.0 kWh
Meter Readings 05406 (01138 Day - up 10 / 04509 Night - up 231) - Gas 6424 (up 92)
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 | 445 | June | 264 | 425 | 425 | July | 261 | 387 | 407 | August | 254 | 264 | 435 | September| 268 | 248 | 242 | October | 151 | 185 | 221 | November | 90 | 78 | 96 | December | 56 | 52 | | ---------+--------+--------+--------+ Total | 2.41 | 2.90 | 4.06 |
377kwh generated for November
6 kw South
2.5 kw West
238kWh generated for November 7.2KW South facing in Dublin.
I got 138kWh on a 4.9kWp in Dublin. Which is a fair bit higher than you on same size nearly. Mine is 2.7kWp on E which gives me decent output. Half have optimisers for shade which helps. My panels are supposed to be decent in lower light but that could be marketing speel.
Have a tiny South too, 1kWp. And 1.2 kWp NW that does verily little at this time of year.
4.8kW EW Dublin. 10kWh DIY battery
November 2022 (kWh):
Production: 100.8 (100 predicted, 101.4 last year)
Consumption: 831
Import: 736 (70d, 666n)
Export: 5.8
Best day: 4th: 6.1
Worst day: 26th: 1.2
October stats , 7.4KW east west even split , Mayo.
Total :- 248.6 KWh
Best day 14th . 17KWh
Worst day 29th . 2.1KWh
Shrugs. I dunno. Any chance something is different in your home app? Mine looks like this... for comparison.
Not defending it, the cloud app looks a mess when winter arrives amd night changing takes over.
My figures still don't match.
Solis Home says 254 for October, Solis Cloud says 387.
I agree... all im saying is... you wait untill next month and it will be resolved. My monthly data is wrong for Nov... but its correct for previous months (like October). They do resolve the calculation later.
Im looking at this months report. It says ive generated 57kwh so far in november. If I look at yield on the inverter page though the yield for the month is 31kwh. The monthly report is wrong. Either way its a bug in the software and solis should address this. If that happened in my company it would be a priority to correct the buggy software and it would be done in a day or two at most.
4.83kWp south facing, Dublin Fingal
322kWh generated
11.5kWh exported (96% solar self-consumption)
240kWh imported (4kWh day, 236kWh night)
22.1kWh generated best day (17th Oct)
0(!!)kWh generated worst day (19th Oct).
I'm out the country and my plan is for all 3. 8kWp currently south, then next is a 4kWp west and 4kWp northeast (don't have an east facing roof)
E/W is 80% of S but if better sunlight gain in the mornings and evenings then E/W trumps.
Always said if I was out the country I'd have two arrays, one S and the other E/W (and tilting)
That's very interesting. I find the same with my south facing panels. On great days it's great, but on less than mediocre days it seems to produce less than E/W. I've a plan for 4kWp west facing.
October 22
543 kWh generated
From November on can see me charging battery 50-80% on night rate as month progresses but was surprised at October results as expected to be importing more on night rate that month but managed to get through without having to charge battery. Shame with balancing still pull handful of units as pinergy day rate is ridiculously high.
124kw exported @ 21c (€26.04)
10kw imported @ 43c (€4.30)
2kw imported @ 6c (12c)
Profit on units €21
Solis cloud app is wrong but you can use the Solis Home app and get the correct numbers.
..... tldr
Actually they are both correct... the issue is the daily reporting for gen includes import at night rate as day gen. But the monthly number only includes sunshine captured. I just checked October, and they both match.
Oct on 7.8KW in louth generated 479kwh, no stats etc as without datalogger until new one comes into stock.
The reason i mentioned it was that solis reports the battery charge as generation, when its not really generation
I've a Givenergy system and Jonathan a Solis one as I recall - and that was a part of the logic I mentioned previously. One inverter may have different algorithm to squeeze out a few extra watts out the panels over another. The other thing is that some panels just are better at diffuse light than others.
No, this wasn't a reporting thing I think - but I do raise it to keep in mind when comparing similar system. You can't just look at the dark days and if you have a difference, you have a problem. You should also look at the bright clear days in the same month and compare those. If you have a difference there also and you have the same aspect/orientation, then you could have a problem alright.
I have my system on Standby from 23:00 - 23:59 and then charge my batteries from 00:00 - 07:59.
It makes the figures cleaner and easier to see when all charging and discharging in the same 24hr cycle
Are either of you charging your battery from the grid at night. Because the generation is way over estimated for the following day unless the solar generation exceeds what you charged the battery by. For example if you charged the battery last night look at your generation today in the solis app and see if it checks out.
Midlands
Array 1: 4.1kWp SSW with Winter Shading, 3.3kWp NNE
Array 2: 2.73kWp SE, 0.91kWp S, 3.64kWp SW (all neighbourhood shading/optimised)
522kW imported
480kWh Generated
410.2kWh consumed
214kWh diverted to Eddi
125.9kWh diverted to Zappi
Approx 810.8kms of range into the EVs
Highest was 37.8kWh
Lowest was 3.3kWh
74% self sufficient (excluding EVs)
44% 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, €56.45
Generated 413 kWh for October for my 6.1 kWh system. Cork, South Facing.
Only used 44% of it and put that down to working in the office for all of the month until I get my working from home sorted. As a result I was not able to charge the EV on the few good days we had. Last October I generated 435 kWh so not that far off
I must chase up those Feckers in ESBN to get my Smart meter installed so I can get the full benefit for the Feed in Tarriff and use the extra low nigh rate
For me the top was August with 908kwh
About the same in May it seems:
Probably just random clouds
It's all down-hill from here 12 panels shaded until mid-Feb 😭
Just curious now @SD_DRACULA my best month was May. How do your figures compare.
JA panels and 6K Solis inverter here.
Myself and Jonathan have similar systems, both in Dublin about 10-15 miles apart......but on dark grey days he'd always struggle to match my output (sub 1-2Kwhr), but on sunny days in winter, his south facing as opposed to my E/W would demolish my output.
I don't think we ever definitively sorted it out the reason (which galls me), but the best theory was that some panels are simply better at converting ambient light into power and/or my inverter was better at dealing with dealing with ambient light than his.
It was consistent too - but more of a point of interest rather than either of us having a "fault" as such.
Hi fellow Solar folk.
Figures for the month of October with a 4Kw system on an even East:West split based in South Dublin. No battery:
Total generated: 190.05 kWh
Highest day: 1st October, 10.56kWh
Lowest day: 19th October 0.47 kWh (note: that was the day it absolutely lashed all day and we’d thunder and lightning, though I consoled myself that the panels got a good wash 😀)
Pleased to report we received the full SEAI grant last month of €2,400 too.
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No shading at all when I check back both strings are performing at a similar level. I am the other side of the city. Looking back that day on the 19th I generated 1kwh where you produced 4kwh.
21 panels so there will always be a slight deviation between strings.
