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 😁
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.
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
That's nice @DrPhilG. 4 more 310W panels? Added to an existing string or a new one?
We all need more. Much more. 😁
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.
423 kwh this month. 3.24kw facing west
4.8kW EW Dublin. 10kWh DIY battery
May 2022 (kWh):
Production: 584.7 (579 predicted, 650.6 last year)
Consumption: 690.3
Import: 149(41d, 108n)
Export: 53.4 (123.5 last year) - was away a few days
Best day: 27th: 31.1
Worst day: 9th: 5.7
4.83kWp south facing, Dublin Fingal
606kWh generated
196kWh exported (67% solar self-consumption)
26kWh imported
33kWh generated best day (14th May)
5kWh generated worst day(s) (9th and 17th May)
A big drop in self-consumption this month. Haven't been using the oil radiators, and it hasn't been warm enough to warrant the portable AC unit either. The 5kWh battery has been covering our needs entirely since 9th May (charged from grid a few nights at start of May as weather was muck).
May Stats
3.9kWp (S), 10kWh battery, 22 deg Slope
Generation – 445.69 kWh Consumed - 314.52 kWh Import – 19.02 kWh Export – 100.39 kWh Edd9 - 31.7 kWh Zappi - 58.6 kWh
Meter Readings 05238 (01099 Day - up 3 / 04138 Night - up 11) - Gas 6239
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 | | July | 261 | 387 | | August | 254 | 264 | | September| 268 | 248 | | October | 151 | 185 | | November | 90 | 78 | | December | 56 | 52 | | ---------+--------+--------+--------+ Total | 2.41 | 2.90 | 1.38 |
Boards.ie - Solar Capacity and production analysis - https://www.pvstats.eu/home.pl
1.12MWh, the new array is helping. Will I get 1.5MWh next month?
I'd say the Shelly is more accurate, as the logging is only every 5 minutes on the solis.
I'm calling it early!!...... its 19:30 but heavy clouds if I get another 0.5 kWh today Ill be very lucky
Anyway big month 811 kWh..... best bay 44.2 kWh and worst day 6.5 kWh
My home assistant is saying 830 kWh and that's from a ShellyEM, but I have been using Solis readings all the way along so I will be consistent. Actually from the solis web page its saying 800 kWh but the reading from the actual inverter scrolling through it says 811 kWh. I think they updated the online portal during the month so I am assuming the online reading is a bit short.
What HA is saying though I generated more energy than I consumed for the month, but actually only used 40% of it the rest went back into the grid. I am happy with that at least I can say I am carbon neutral.
I also over performed on the PVGIS-SARAH estimate by about 10%.
All data on the PVStats website and the google sheets doc
Just completed my first full year of solar yesterday.A 2.5 kwh system facing south in Galway.
Total for the year was a respectable 2,708 kwh.
Best day was 18.9kwh.
Worst day was .6kwh
Best month was July with 339.7kwh.
Worst was December with 67.8kwh.
8.16kW Midlands. 5kWh battery, Eddi, Zappi, EV
Down slightly on March and up slightly on projected production. Have been away for the last 10days so exported more than normal.
Generated 857.5kWh
Consumed 654.6kWh
Battery 155kW
Zappi 119.8kW
Eddi 95.9kW
Only one day beat the highs of March which was on the 29th at 46.7kW.
April 2022 (kWh):
Production: 501 (442 predicted, 563 last year)
Consumption: 752.1
Import: 283(53d, 230n)
Export: 31.9 (94.2 last year)
Best day: 24th: 27.9
Worst day: 12th: 3.4
Whey hey, for sub 1kW imports
10 days in March
15 days in April
Very true - although you could argue that the latency works both ways. You might be exporting a little before the inverter logs it as an export, in which case you may have "balanced" some of the import that you had delays in logging. If you follow me?
The main thing though isn't really about 0Kwhr or <1Kwhr, it's that the "number of days" figure. I like the stat, it's a good one.
For me, it's easy! Everyday I don't have enough :-)
6.8 kwp Wexford. Eddi and Zappi. 2 EVs.
Generated: 807kWh
Exported: 164kWh
Imported: 314kWh
Zappi: 348kWh
Eddi: 53kWr
Lowest generation day: May 5th - 3.3kWh
Highest generation day: May 24th - 45.9kWh
The reality is that every single day is a day with less than 1kwh since the inverters cannot detect with 100% accuracy the usage as they still take some time to react to the load.
It might be: Days with apparently less than 1kWh purchased - 10
Yeah I had previously counted days with zero export but even on a great day you'll sometimes buy 0.1 or so just by bad timing so I count the sub 1 days instead.
Days with less than 1kWh purchased - 10
I like that stat. As in the metric itself......useful stat to know.
April Stats
6.2kWp (2.8 south/3.4 west), 20kWh battery, Zappi & Eddi – Donegal
Generation – 575.9kWh, a 12% decrease from 2021
Export – 14.9kWh, down from 79.3kWh in 2021
Import – 277.3kWh, slight (17kWh) increase from 2021
Best day – 27th 36.8kWh
Worst day - 4th, 3.6kWh
Ohh 100% mate. Totally agree with you - they all do it though. There's a certain ambigutiy around where they are measuring.....and they could be clearer as to where the stuff goes.
I was wondering if the figures should not be otherway round. There are charge/discharge loses and 10% is a figure that I would expect.
Just did the maths on my electricity bill for the last 2 months. Generated 615kw of solar. Used 400kwh less (day usage) than the same time last year when we didn't have solar pv (Feb - April). Saved 89 euro on just the energy. Add vat and it becomes €101 saving.
Also saved 139kwh night rate which was €17 savings. I assume it's down to the heat pump drier we have.
3.24kw system facing west
Can do - albeit it depends on how they classify it. "Generation" was 741Kwhr of which 263kwhr went to the battery. There's a 31Kwhr in "Energy from Grid" which of course you'd need to specify where that went. Did it go to the house, or the battery? Interestingly, if you add 263Kwhr, and that 31Kwhr, you get 294Kwhr - which is pretty close to that 290Kwhr which the battery discharges. So you probably have 27kwhr of that 31kwhr (from the grid) going to the battery. I know - I know.......
GivEnergy are also guilty of that ambiguity.
There is smth not right with these figures. How can battery discharge is higher than charge?
First full month, 3.1 East/ 2.4 West, 504kWh.
Very similar installation as yourself handpref (5.3Kwp here split 1.5Kwp East/3.8Kwp West) in Dublin 16. Although fairly dissimilar production graphs for the month.
Totaled 479Kwp for the month verses your 444Kwp. That's close enough that it doesn't matter a dam. It's interesting to me that you have a 5x days with more than 25Kwhr to my 2. Where are you located? Just wondering if you had any shading on the start of the month (for example a chimney that might have been reducing production which no longer was an issue later on when the sun was higher?)
5.4 kwp east west split-
April generation 444kwh
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