Was having a look at the stats from last year compared to this year, as it just "feels" like there's been a dearth of blue sky days this year. Dublin 6.5Kwp split E/W (pretty much 90/270)
Running about 200kWh behind last year, though to be fair, end of May start of June last year was pretty epic. Somewhat surprisingly to me it was keeping pace with last years until the period I mentioned above.
36.5kwh in East Cork today. Tomorrow looks better.
Whay kind of system (in KW) do you have?
Couple of days left before we hit Fómhar.
Last few days of summer, 🌞
Summer needs to begin first right?
We got a day or 2 back in may I think 🤔
I have the same graph as your self but have 2022 data as well and that makes it more depressing…in total 2022 vs 2024 to date I down about 9% and compared to 2023 Im only down just a smigin over 2%.
But it feels a bit worse so I did a bit a comparison over the 3 years with days that were over 35 kWh which is 80% of of max PV production. So anything over 35kWh is a nice sunny day…what this shows for me 2022 vs 2024 i have 35% less nice sunny days ….2023 vs 2024 at this stage I'm down 23%..
56.5 kwh in East Cork.
I have the data for 2022 also, but I upgraded the system by adding a few panels, so the results are a little skewed if I compare across without "normalizing" the data. I think March 2022 was stellar as I recall, and if doing analysis if you deduct that (very unusual) month as an edge case, they are probably more alike than you think.
For example your bottom chart above you can see march '22 it built up a "good head of steam" for the year, and then it kept pace for the rest of the year ahead. Similarly May/early June '23 was also outstanding as I recall.
Here's hoping we get a solid week of it before the summer is out!
Tuesday and Weds looks pretty solid for Dublin by all accounts.
50.5kwh in East Cork today. 10.75kwp
How is this possible. I got 20 with a 8.7kwp
Are you comparing today to two days ago?
25.7kwh yesterday
54.8 in East Cork today.
Whats your system? NC6 or NC7?
What panels do you have?
either way seems awfully high for that size of system. Wouldnt mind getting the details. Can compare it to mine to see how i can improve
I am on 6.5kw system in cork and on similar stats if I adjust for system size. The south east will generally have best radiance so that might explain some difference if in another part of country. Majority of my panels are south facing too.
I have 6 South and 2.7 split east west. This flattens the clipping and spreads it a little further. Im exporting 5kw in good sun, house is only drawing 250 watts during the day. So i would need 10 hours of good sun to break 50.
my limitation seems to be with the 5kw invertor. I can charge my 5kwh battery during the day at peak to reduce that clipping a little but havent made it past 40kwh since install over two weeks ago.
Im thinking allinthehead must have a large invertor and/or those 15kwh battery stack he has is charging at peak, giving the extra 10kwh as this wont be limited by the 5KVA/5KW limit for the NC6. ( as in clipping wont affect this charging)
How much per hour excess can you export ?
I have a 24 panel free standing array up but not connected yet,heres what it looks like
Its got an unobstructed south view,east to West,midday sun hitting it dead centre
The panels I think are around 500w
I'lll put up the stats in thid thread in a week or two when we have it hooked in
We have three 5kw batteries
You'll be limited by the nc6 or nc7 that is sent in. Your MEC is got from that.
Likely nc6, so 5kW (your inverter would also be 5kW)
Thats per hour is it? The installer said 6
Yes per hour.
ESB limit export to 27 amps which is circa 5.5kW. most inverters within this limit are 5kW. You can get a 5.5kW inverter but I believe it has to bought from china (deye). A 6kW inverter would exceed the 27 amp threshold.
The ESB would reject an NC6 in the case a 6kW inverter was installed.
Happy to be corrected on any of the above from the more knowledgeable boardsies
25 amps is the nc6 limit.
Cheers for the correction. It has been awhile since my system went in.
Yeah they've clarified it's going to be 5.5
So essentially if I use 20 inc battery charging on days say may to september,I could be in peak production on those panels exporting 55 in 10hrs max and maybe 10 on cloudy/rainy summer days
The panels do 14.5kw/hr max apparently
So if thats down to as low as 4kwh of a rainy day,it should still fill those batteries in 5 or 6hrs providing plenty for the night?
Quite excited to watch this when its switched on and will post the stats if I can work out how to read tgem ?
Don't worry about the"per hour"
If you export 5kW[power measurement] for one hour you would have exported 5kWh[energy measurement]
What are you actually getting installed, 14.5 kWp seems very high for a 5.5 kW inverter.
We've 2 inverters,3 batteries
then some will say you are likely over the limit for the free NC6 and apparently as long as you limit your export in line with NC6 max there is no way for anyone to know what you have on site…
Thinkin going to be a good end to august
Indeed, and it turns out to be the highest gen month already 😁
![Photo of [Deleted User]](https://wd.vanillicon.com/v2/da062963b749703a88f3d03ba7706479.svg)
