Daily pv production

DrPhilG · 26-08-2022 5:29pm

Less than 14kWh here in Donegal. And the wife has decided to bake buns in the electric oven so I doubt if I'll make it through to morning on the battery. Its at 55% now.

DC999 · 26-08-2022 5:42pm

Can't have your cake and eat it :)

curioustony · 26-08-2022 6:22pm

And the wife has decided to bake buns in the electric oven so I doubt if I'll make it through to morning on the battery. Its at 55% now.

@DrPhilG I completely subscribe to the sentiment. I also worry that we take this too far sometimes. At least you can enjoy the buns!

DrPhilG · 26-08-2022 6:39pm

https://www.boards.ie/discussion/comment/119526315#Comment_119526315

Nope, she burnt them... 😢

Doesn't matter too much in the long run. I would have enough juice to get to the morning but the forecast tomorrow is muck so I'll charge a little over the next few nights.

Barely made it this morning, battery was down to 25% (20% dod) by the time generation started covering the load. Would be similar tomorrow but with sod all generation over the next few days I'd still run out.

silver_sky · 26-08-2022 11:14pm

Pretty low day, just 7.5kWh. Battery got charged up but it was late enough. Eddi took about 1.8kWh so not enough to heat the tank and had to use some gas. Could be better but could be worse. It is what it is. :)

DrPhilG · 31-08-2022 4:16pm

August is ending with a bang, 32kWh yesterday and on course for similar today.

Will be north of 750kWh for the month, estimate was just 668kWh.

SD_DRACULA · 31-08-2022 4:25pm

Go on the 900 😁

I think estimated for August was around 650kwh give or take. Which was spot on for last year's

paulbok · 31-08-2022 10:08pm

33.5kwh today and yesterday to finish Aug on a high, over 200 ahead of forecast. Was a funny month, 16 days with 30+kWh yet 8 days with less than 10kwh. Still the best month of the year, with almost 300kwh exported

Mentally preparing myself for the inevitable drop off in production as Sept progresses.

Bakka · 01-09-2022 12:55pm

My first full month done now. A very good 1185kwh was generated in August. Delighted with that. If September could just continue on as it started, I'd be hoping for a good return this month too.

deravarra · 01-09-2022 1:42pm

https://www.boards.ie/discussion/comment/119553691#Comment_119553691

well done!

I've just over 588 for the month, and most of that was exported to the grid as we were away for most of the month. From the latest FIT info, we should be getting back 18c per KWh sent back to the grid. We're hoping to be well in credit once the bill comes through.

We've also had a smart meter installed and once we get an EV, we'll go to the EV bundle. We'll use the cheaper night rates to top up the dhw tank during the colder months. at 5 cents per KWh, it would make great sense to do it this way.

DC999 · 01-09-2022 2:26pm

550kwh on our first full month. Huge output for us, dwarfed by others here, but that's all good :)

It's largely charging our EV when it's in the driveway. Only self-consuming ~40% but still learning the ropes so ok with that for now, but will tighten it up in time. If we had a 10kwh battery (we have none now and still on the fence), we'd have been buying nothing from the grid to run the house and EV - which is unreal. I'm still very much in the excited and amazed space as we're only 5 weeks live. 4.9kwp (mainly E, small S, small W)

championc · 01-09-2022 2:36pm

https://www.boards.ie/discussion/comment/119553691#Comment_119553691

Fook me - what size is that ? And how much export ?

Bakka · 01-09-2022 5:46pm

https://www.boards.ie/discussion/comment/119554385#Comment_119554385

I have a 9.1kwh ground mount system 150 degree orientation in Galway. It gets a good dose of sunlight throughout the whole day. I only got in the Smart Meter last Monday the 22nd August at Midday. Since that time to now, I have exported 198kwh in little over 10 days. There is 5 in the household, with showers etc always on the go. I have no battery or EV.

deravarra · 01-09-2022 6:32pm

https://www.boards.ie/discussion/comment/119555590#Comment_119555590

Eamonn Ryan might be making a phone call to ya any day :)

Bakka · 01-09-2022 8:19pm

https://www.boards.ie/discussion/comment/119555810#Comment_119555810

Ha ha. As long as it's just a phone call and not a personal visit. My dogs love to eat anything green,!!

LimerickCity · 02-09-2022 8:17am

Hopefully the correct group. We have a 28.kWh setup here with a Huawei Inverter. It is basically an 8 panel setup on one string.

We have some additional space on a side roof that could fit 6-8 panels. Would anyone have an idea how much it would cost to install and add those panels to the system?

bullit_dodger · 02-09-2022 9:53am

If it was the same day as your initial install day, you'd be generally looking at about €250/panel mate. As an after addon, I'd say €400-500/panel. Yeah nearly double. Thats assuming that you current inverter can handle 2 strings (and your using 1x now), and that your within limits of voltage/current.

The reason of course is that you have to pay for a second call out, potentially scaffold installation a 2nd time, etc. it's not just the panels you have to pay for but all the sundry work(s). Hence why the general recommendation is to get (more) panels in than you think you need initially.

DrPhilG · 02-09-2022 9:41pm

Miserable 8.1kWh today.

bullit_dodger · 02-09-2022 10:06pm

https://www.boards.ie/discussion/comment/119562142#Comment_119562142

Tomorrow looks worse mate - only 3.7Kwhr estimated for me tomorrow!

allinthehead · 03-09-2022 12:01am

14.4 kwh in Cork today from my 3.2 SE .8 NW and newly added .8 W mounted vertically. Another 2.4 kwp planned for the extension next year and still have the main roof panel free. If we decide to stay put it will be filled😁

paulbok · 03-09-2022 7:55pm

22, 18 and just 10kWh today. Sh1te start to the month.

Winter is definitely coming 😭

Gerry · 03-09-2022 8:09pm

2kw today.. atrocious.

bullit_dodger · 03-09-2022 8:11pm

And yet tomorrow (Sunday) I see I'm forecasted to generate 20Kwhr, so decent change for the good

allinthehead · 03-09-2022 8:51pm

https://www.boards.ie/discussion/comment/119566686#Comment_119566686

What do you use to predict production?

John mac · 03-09-2022 9:10pm

managed 20.2 today

Jonathan · 03-09-2022 9:29pm

https://www.boards.ie/discussion/comment/119566992#Comment_119566992

That was decent where abouts in the country are you?

A paltry 1.5 kWh here in Dublin Fingal.

deravarra · 03-09-2022 9:39pm

5.1 from a 4.4KWp system - midlands.

tnegun · 03-09-2022 9:47pm

Logged in to see how people faired today I generated 2kwh on the nose in Kildare from a 4.2kWp system with a 3.6kw inverter it was a shocking day from start to finish! I've started to qualify my install lately if anyone asks as I've 4.2kWp of panels and a 3.6kw inverter so I think I should really quote the inverter size rather than panels as it's lower?

slave1 · 03-09-2022 9:51pm

22.9 through lots of rain and cloudy skies, benefit of two arrays

Bif · 03-09-2022 10:34pm

3.9.22 - 6.9 array

silver_sky · 03-09-2022 10:50pm

1.7kWh in North Co. Dub today. I should have charged the battery last night but there wasn't actually much use today in the house anyways. Battery is at 20% now only getting just a bit above 30% during the day.

bullit_dodger · 04-09-2022 12:20am

https://www.boards.ie/discussion/comment/119566882#Comment_119566882

Designed my own application.

But ultimately I use the raw information which comes from met.ie , you can give the lat/long into the Met Eireann and they will return a xml/json file which you can interpret to figure out the solar energy for the next few days. E.g.

http://metwdb-openaccess.ichec.ie/metno-wdb2ts/locationforecast?lat=xxx;long=yyy

Substituting for some location in Dublin.

http://metwdb-openaccess.ichec.ie/metno-wdb2ts/locationforecast?lat=53.27;long=-6.32

As you can see above, there's a reasonable correlation between the forecast and the actual. Sure, somedays it's out by a bit, but in general it enables me to set the battery charge level with a decent confidence level.

Chancer20 · 04-09-2022 8:28am

A record (low) day yesterday of just 3.4kWh (Co. Wexford) since solar was installed in June.

We were lucky that it was our Free Weekender day from EI.

The sun is out again today. 👍️

fuse · 04-09-2022 11:38am

https://www.boards.ie/discussion/comment/119566882#Comment_119566882

I've been using https://toolkit.solcast.com.au/live-forecast

Must check out your method Bullit_dodger

On day 3 of solar. Trying to figure out the best way to access the raw soliscloud data. Any pointers?

Jonathan · 04-09-2022 12:11pm

https://www.boards.ie/discussion/comment/119568741#Comment_119568741

Raise a ticket with Solis and they'll give you an API key.

You're better off pulling data locally using Modbus though. Realtime and more efficient.

SD_DRACULA · 06-09-2022 11:30am

Brutal in Dublin today, estimate way off 😥

championc · 06-09-2022 1:08pm

If my panels aren't as clean as the day they were installed, then there's no hope !!!

SD_DRACULA · 06-09-2022 2:03pm

4kwh so far, probably first night I'll have to charge from grid since the good weather.

Tomorrow looks as bad.

slave1 · 06-09-2022 2:46pm

https://www.boards.ie/discussion/comment/119579000#Comment_119579000

I had 10 of mine tilted to 60degrees and reduced that to 37degrees at the weekend, I noticed them quite dirty compared to my fixed 45degree panels. I'll give them a gentle wash perhaps at some stage

DrPhilG · 07-09-2022 9:46am

2.8 on the 3rd, 28 on the 4th.

This country is nuts.

Screenshot_20220907-094601_Solis Home.jpg

SD_DRACULA · 07-09-2022 10:48am

The load shifting has begun early this year

Chancer20 · 07-09-2022 12:44pm

Post deleted.

Obviously I don't know what I'm talking about.

AckwelFoley · 07-09-2022 12:52pm

First day.

8.1kw so far at time of posting. Pretty good considering the terrible dull weather.

Every little helps

slave1 · 07-09-2022 12:59pm

https://www.boards.ie/discussion/comment/119583909#Comment_119583909

It wasn't the dust or bird poo, the heavy rain cooled down the panels thereby increasing panel voltage and in turn your kW generation

Chancer20 · 07-09-2022 1:40pm

https://www.boards.ie/discussion/comment/119583987#Comment_119583987

Post deleted.

Chancer20 · 08-09-2022 8:28am

https://www.boards.ie/discussion/comment/119583987#Comment_119583987

https://www.sciencedirect.com/science/article/pii/S0973082621000569

Seems I'm not so stupid after all.

slave1 · 08-09-2022 8:36am

a) Your stupid assertion is your own

b) You seriously want to extrapolate a Sahara Desert study of sand dust impact on PV Generation into Ireland

It's been noted year for years that there will be a strong peak in generation immediately after rain has cooled down the panels during "Summer" months i.e. dark clouds and rain clear to sunburst = peak. This impact is much less in Winter/Spring as the panels have not gotten as hot during the day, hence April/May are the typical highest generation months

AckwelFoley · 08-09-2022 8:52am

Ended up with 15.5kw yesterday which was pleasing for day 1 of full production. We used no grid yesterday.

Not so confident today with our 583w output through the clouds

DC999 · 08-09-2022 11:10am

https://www.boards.ie/discussion/comment/119588190#Comment_119588190

Sweet. What size did you get in the end? Lot more than I got in Dublin yesterday

AckwelFoley · 08-09-2022 11:44am

https://www.boards.ie/discussion/comment/119588795#Comment_119588795

6.56kw of panels. ..I was quoted for 16 x 340s

But ended up getting greedy and went with a higher output panel 16 x 410s

Ticking over slowly now at 2kw/h

Daily pv production

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