Daily pv production

josip · 25-05-2026 03:27PM

I see you have a similar set of blips for yesterday morning, including generation above what one would expect from the charging curve.

Was that because there was a little cloud perhaps, reflecting additional sunlight on the panels?

bullit_dodger · 25-05-2026 03:29PM

https://www.boards.ie/discussion/comment/124498546#Comment_124498546

Could do a forced discharge at full whack for 30 mins at 4pm, and then you'd be able to capture a little more. tbf though, your only scratching out the last few kwh, but still, if your a geek like me….. :-)

josip · 25-05-2026 03:33PM

https://www.boards.ie/discussion/comment/124498567#Comment_124498567

Would that make any difference on a day like this, when his inverter is maxed out until 18:00?

AllTheNamesAreGone · 25-05-2026 03:33PM

https://www.boards.ie/discussion/comment/124498563#Comment_124498563

could it be where I was changing the mode cause I didn't know what I was doing? No idea IIf there were cloud's

AllTheNamesAreGone · 25-05-2026 03:35PM

Will it still discharge if tthere still over 5,5 coming in? Its going to happen today too

AllTheNamesAreGone · 25-05-2026 03:39PM

https://www.boards.ie/discussion/comment/124498588#Comment_124498588

battery is over 80. I should do manual discharge? . Where would it go. Sorry for question's

AllTheNamesAreGone · 25-05-2026 03:40PM

forgot chart

josip · 25-05-2026 03:48PM

https://www.boards.ie/discussion/comment/124498597#Comment_124498597

On a day like this where there is zero cloud, then all you can do is be emptying the battery on the upside of the power curve. I've an export schedule set for 09:00 to 11:00 to 11%. After 11:00, the inverter is maxed out and you've done all you can.

If there is intermittent cloud which would be more normal, then a forced discharge around 4pm like bd suggests would work by taking advantage of the dips to make some room.

bullit_dodger · 25-05-2026 03:51PM

Sorry, I might be in error there….most inverters actually have two inverters (internally), one for the battery and one for the PV. I was thinking that you export from the battery to the grid, that you could create storage space in the battery for additional solar to be invertered later in the day, but that wouldn't work I think as you'd still be limited by your 5.5kw limit.

Sorry for the confusion.

bullit_dodger · 26-05-2026 09:38PM

Geez the weather has been superb this week.

Perfect curves…rare that I don't get the odd cloud here or there. Tomorrow seems like more of the same according to the forecast for Dublin.

magicbastarder · 26-05-2026 10:11PM

oddly, my generation has fallen for the last two days; sunday was 47.3kWh, then 46.8, and 46.6kWh today.

josip · 27-05-2026 12:42AM

https://www.boards.ie/discussion/comment/124502216#Comment_124502216

It's been progressively hotter and panel efficiency decreases above 25C.

Ron. · 27-05-2026 06:58AM

Edit, Solis have just responded so I have my explanation now.

We have observed that the system firmware is outdated, and the grid code is currently set to EN50549. Kindly allow us to change the grid code to "ESB-Micro" as per the country standard.

.…........

First time I've seen grid over voltage alarm in the 3 years since install. A quick search suggested too much power may have been going back to the grid in the neighbourhood ?

Im in a fairly new estate, I was the first to install, in the last year id say 20 of the 100 house has solar now.

I started charging the car to see if it helped and it did. To make sure it wasn't a coincidence I stopped the charger where you see the output dropping off again.

Stuck on the charger then for the evening and all was ok.

I raised a ticket with Solis to see if there is anything that needs to be done with the settings. Is there any point contacting the esb ?

CramCycle · 27-05-2026 07:20AM

50.5 kWhr yesterday, 10x400 facing East, 10x400facing West. Best day of the year so far.

magicbastarder · 27-05-2026 01:49PM

https://www.boards.ie/discussion/comment/124502481#Comment_124502481

i'm not sure if it was hotter yesterday than previous days; but i can see s thin coat of dust on the panels if you stand at the right angle looking at them. not sure if that'd make a blind bit of difference though.

bullit_dodger · 27-05-2026 02:34PM

For those of you in Dublin, here's what I got today (green), yesterday and the day before. Obviously the green isn't finished yet.

Much to a muchness really between the days. Few clouds this morning and on the 25th in the afternoon, but tracking pretty much identical from 10am to now (2pm) for three days.

You can note an interesting side effect of clouds, when they come in….the production obviously drops, but when they leave, the panels can beat the output of when they are under complete blue skies for a few minutes. (the bit in green about 9am) Basically cause the panels are cooler.

newhouse87 · 27-05-2026 02:41PM

Here in south tipp it was on 30deg mark yesterday and i was couple kw down on previous clear sky days so heat definitely affecting mine a bit.

tppytoppy · 29-05-2026 12:46PM

Those with grid connected roof solar should pay attention to the reforms proposed in Germany. If you search for eeg reform prosumers in Google you will get a few German language results and an AI synopsis in English.

The amount you feed in will be restricted and there will be a 100 to 150 euro service charge.

Expect that to be the template followed by Ireland a few years later.

In that case you will be better off switching on immersion, running dishwasher, washing machine and tumble dryer and filling up battery in house and car.

magicbastarder · 29-05-2026 01:09PM

i work with several germans, and they went flat out for solar a few years ago. my boss has i think 36 panels; another lad has 18, and the chap who married a farmer's daughter got 120 panels.

tppytoppy · 29-05-2026 01:17PM

A colleague of mine owns a solar installation on a roof of a shed. He doesn't own the shed. It is an investment vehicle and once the subsidies run out it has limited profit earning potential but he will make a return on his investment.

magicbastarder · 29-05-2026 01:52PM

quite a lot of saharan dust on the panels at the moment!

Busman Paddy Lasty · 29-05-2026 02:22PM

Anyway, if get penalised for exporting can likely change an inverter setting to not export.

CramCycle · 29-05-2026 04:19PM

https://www.boards.ie/discussion/comment/124508474#Comment_124508474

We are a long way away from that in my opinion but it makes sense to push people to use the electricity and store locally to use locally. the guys who installed my panels are so busy here they won't have to leave the county for work for the next couple of years. As soon as the FIT payment drops to a level I find to be insulting, I will bite the bullet and get a battery, it just wasn't in the budget when I maxed out getting panels.

https://www.boards.ie/discussion/comment/124508735#Comment_124508735

This, if they started punishing people, it would backfire almost immediately.