Daily pv production

Chancer20 · 08-09-2022 12:29pm

https://www.boards.ie/discussion/comment/119588162#Comment_119588162

Charming.

Is there any way to block people on here?

Edit: Yes there is. All done.

Moderator or not, nastiness is really acceptable, and you should know better.

Chancer20 · 08-09-2022 12:38pm

I'm adding back my comment:

After the rains, my panels have increased in power back to their original output when fitted in May.

Someone tried to tell me it was because the rain cooled the panels down 😂

While that might be a half decent explanation, it does not explain why the panels had full output in the early hot days, but the power decreased in time and as the panels became visibly dusty and covered in bird poo. Then it rained. The panels are shiny clean and the power went back up to their original output. What was irrelevant was the temperature, as it was not hot on the day before the rain, and it wasn't much different after.

So there we go. Proof that dust and bird poo does affect output.

And not forgetting that the supplier of my panels also reminded me the panels would occasionally need a clean to keep them at optimum output.

So as I stated before, don't call me stupid unless you can back up your own claims with proof.

So bored with this now. I came here for help and to add my own help to the forums, but it seems someone is out to get rid of me after only 8 posts. And a Moderator too.

Disgusting.

Bye

bullit_dodger · 08-09-2022 1:34pm

It's a bit of both Chancer. Dust, bird crap, shading etc will affect production, but there's many people here on the forums who've been using solar for many years and while dust will affect it......the far more prevalent and influencing factor is panel temperature. If you want the technical reason for this it's

Effect of Temperature | PVEducation

I don't typically get involved in slagging games, but as for anyone slagging you off, I think that's on you. Slave1 above was just mentioning that the only person who called you stupid was yourself where you said something like

"forget what I said, I'm stupid" -

and he was just mentioning that noone else thought that and gave you the right answer. People can be wrong (I'm wrong all the time), but the defensive nature is unwarranted man.

con747 · 08-09-2022 1:40pm

Bye 🙄

graememk · 08-09-2022 2:03pm

Yeah 90-99% of it is temperature, We dont really get much dust build up (we dont go that long without rain/not much dust in the air...

Its on the spec sheet of every panel, Temperature goes up, output goes down,

My panels regularly clip in May and June, vs the hotter July & Aug (max ive seen on the really hot days was 5.5kW), Now as the temperatures drop outside, I should see some clipping again, although the days arent near as long as what we get in May.

Another note, This years been a lot different from last, March was exceptional, May June July nearly had all the same output.

Just variances in the weather we get.

yankinlk · 08-09-2022 6:59pm

Back on track. The bird poo thing does interest me since I live next to a crow rookery. Definitely in the nesting months I considered up and giving them a wash... but I didn't bother this year.

For sure next year I will do and see if I get a different result on average. Crows can leave very large splatters!

Maye for sure was my best month for high highs... think the crows had moved on by then tho.😜💩

harderthanf · 08-09-2022 8:06pm

It's temperature - in your case the rain lowering it. I experienced the same a couple of weeks after my install ( and plenty of times since ). Lots of people on here advised it but I contact my installers who told me the same. I then contacted Trina, the manufacturers, who also assured me temperature has a big impact on production.

Jonathan · 08-09-2022 10:17pm

My system will be installed a year this coming Saturday, so hoping to generate the 7kWh tomorrow needed to crest 5MWh for the year. The PVGIS-SARAH2 estimate was 4.47MWh, so very happy with that from a 4.83kWp system.

@ECO_Mental your system went live around the same time (same day?), right?

bullit_dodger · 08-09-2022 10:43pm

https://www.boards.ie/discussion/comment/119592859#Comment_119592859

Getting 7Kwhr tomorrow might be close Jonathan. You've roughly a similar sized system to me (I've 5.3Kw split e/w) and currently I'm showing....

Hope you get it :-)

DrPhilG · 08-09-2022 11:17pm

Very healthy 23.6kWh today. Tomorrow looks OK, and Saturday is a cracker although I'll be out all day so going to need to run the battery to rock bottom before I go.

championc · 09-09-2022 8:20am

https://www.boards.ie/discussion/comment/119593213#Comment_119593213

Too late, you've just jinx'd it 😂

ECO_Mental · 09-09-2022 1:36pm

https://www.boards.ie/discussion/comment/119592859#Comment_119592859

Yeah is was September last year went I got power to the house and the PV system started running but it was late October before I started logging it 25/10/21 so I have a bit to go.

The Solis web is saying I have generated 6.78 MWh since installed so I have about 6 more weeks of production. Although I use Home Assistant and ShellyEMs to log my PV now and they give me a percent or two more kWhs per month as the frequency of sampling is seconds instead of minutes through the Solis web.

John mac · 09-09-2022 9:29pm

managed a whole 6.5Kwh today ..

paulbok · 10-09-2022 8:06am

15kWh yesterday, nothing exported, but did get a bit into the Eddi.

Consumption > production for September so far. Probably will balance out today as look nice and sunny this morning.

AckwelFoley · 10-09-2022 11:32am

Since we started in Tuesday this week our old meter is today 4 units below what it was on Tuesday.

Solar is absolutely throwing out the kw's now at 90% capacity. Remarkable buzz from generating one's own electricity

..hmm buzz is probably an apt choice of words

SD_DRACULA · 10-09-2022 12:24pm

Another brutally over optimistic estimate for today... 37kwh my....

slave1 · 10-09-2022 12:40pm

Was a bright early morning in the Midlands but then dark clouds rolled in around 9. Hard to make worthwhile early morning PV this time of the year. Improved around 11 and more blue than clouds now. Hopefully get the car back to 100%, full hot water and 4 washes done come 6

bullit_dodger · 10-09-2022 12:52pm

I reckon this is about the best way in knowing the short term future.

Ireland Visible - Met Éireann - The Irish Meteorological Service

And play the sequence to see if there's a break in the clouds coming.

SD_DRACULA · 10-09-2022 4:55pm

Picked up a little, 25kwh now, battery 94%, car 70%

allinthehead · 10-09-2022 9:15pm

11kwh today. 3.2kwp SE, .8 kwp NW, .8 kwp W. Pretty dull day in East Cork.

DrPhilG · 10-09-2022 9:33pm

Proof if it were needed that Donegal is God's country.

30.1kWh, 0.8kWh exported, 8.2kWh into the car.

silver_sky · 10-09-2022 9:46pm

23.5kWh in North Co. Dub. Exported 7.9kWh, imported 1.7kWh. Car took 6.3kWh and Eddi put 3kWh into the hot water. Not a bad day. Import is due to some tweaking going on with the Solis firmware.

AckwelFoley · 11-09-2022 6:52pm

4.2kw today

Terrible weather, awful dull.

*shakes fist at sky*

slave1 · 11-09-2022 6:54pm

Just heavy clouds and rain non stop for 7.6kWh

irishchris · 11-09-2022 7:43pm

Shocker of a day today but testament to having a decent sized battery. Just over 9kwh generated but such a difference to how September started. Next few days look fairly promising thankfully

Screenshot_2022-09-11-19-40-59-831_io.homeassistant.companion.android.jpg

John mac · 11-09-2022 8:46pm

25Kwh , yesterday .

today sunday 8Kwh

DrPhilG · 11-09-2022 11:17pm

Quote a fall from grace...

Yesterday the second best of the month, today the second worst.

THE ALM · 12-09-2022 1:32pm

Like most it was a rotten day yesterday with 4.2kWh, today not fairing much better.

Niceday20 · 12-09-2022 1:49pm

Not so bad here in Mayo today, getting by without having to charge the battery last night. Hopefully fully heat the HW, the battery already having reached 100%.

With the large swings day on day yields it is hard to guess when to charge overnight and when not to.

System 4.8kW.

SD_DRACULA · 12-09-2022 8:36pm

Hmm to charge or not to charge, that is the question...

AckwelFoley · 12-09-2022 10:00pm

Today wasn't bad imo. Off the back off 4.4kw yesterday managed 11.7 today considering the day wasn't much better, albeit not quite as dark

John mac · 12-09-2022 10:16pm

22.4 today , nice bit of sun ,, after miserable Sunday

Ubbquittious · 12-09-2022 10:18pm

Not even 3kw dull dull day here

SD_DRACULA · 13-09-2022 9:12am

Irish weather predictions... magic is more real than them...

Niceday20 · 13-09-2022 12:00pm

https://www.boards.ie/discussion/comment/119610829#Comment_119610829

Hope the irish weather prediction for you is correct.

Despite forecasts below, just not getting much this morning with high cloud. Fortuneately, I forgot to switch off overnight charging, so I had a nearly full battery this morning.

SD_DRACULA · 13-09-2022 12:08pm

Brutal day in West Dublin, predictions nowhere near, full clouds, only about 3kwh so far

bullit_dodger · 13-09-2022 12:59pm

Yup - I feel your pain in D16. It does look like it will clear later as per the forecast.

Ireland Visible - Met Éireann - The Irish Meteorological Service

My automation decided today was going to be "grand", so it didn't charge anything into the battery. One hopes that the 3-4 hrs this afternoon will be enough to fill it.

13-09-2022 1:26pm

Would it be possible when people are posting their generations sats that they include their array size please ? It would be useful to know what to expect.

Has anyone here availed of the FIT that some energy providers are providing ?

My only gripe with that is there is no guarantees and could pull the FIT any time or greatly reduce it.

I think Energia were offering 21c/Kwh ? at least I have to say it sounds more attractive now getting a lump sum off the bill rather than having to dump energy to stuff I don't need like tonnes of Hot water.

I'd have to get a smart meter too which would mean the 3rd more expensive peak rate and not sure I could get a cheaper night rate tariff either.

graememk · 13-09-2022 2:15pm

https://www.boards.ie/discussion/comment/119612013#Comment_119612013

Re array size.. we used to, then got lazy 😂.

Regarding FIT:

If you have a day night you are meant to get a deemed (estimated) export amount. The calculation is on the Cru website, I don't have it to hand.

Nobody here has got any payments yet, but it's supposed to be back dated to February.

Rates are as follows

SSE Airtricity 14 cents / kWh

Pinergy 13.5 cents / kWh

Energia 18 cents / kWh

Electric Ireland 14 cent / kWh

Bord Gais not yet released

Flogas 20 cents / kWh

I'd be holding onto the day/night meter for now anyway.

Payments are due to start "soon" but God knows how long that would be.

fuse · 13-09-2022 2:25pm

Looks like it's picked up a bit today.

New installation since last week and got battery up and running yesterday. Relieved to be getting some of the last bits of summer sun in before the winter!

5.7kWp East West split.

AckwelFoley · 13-09-2022 3:23pm

12.2kw at the moment

South facing 6.5kw of panels

Went online this hour last week and have got 90kw/h for the week which is just above entire consumption for the week

DrPhilG · 13-09-2022 3:44pm

20.1 yesterday, on course for probably 25 today.

13-09-2022 3:50pm

https://www.boards.ie/discussion/comment/119612359#Comment_119612359

Thanks for the info.

The array size is useful to know along with battery size if anyone has one.

Has anyone got a battery that can dish out the Kw when needed, say when the oven and a few hobs are on ?

Any chance install year and cost of install could be included the more info the better for those on the fence.

We need around 10 Mwh per year.

bullit_dodger · 13-09-2022 4:19pm

https://www.boards.ie/discussion/comment/119613010#Comment_119613010

Are you not looking for the statistics spreadsheet?

https://docs.google.com/spreadsheets/d/126q1if4RJqtmB1z-M6cxuXr6TknY_SwKuwAjxZsxh8E/edit

paulbok · 13-09-2022 4:46pm

https://www.boards.ie/discussion/comment/119613148#Comment_119613148

Is that the link to add a setup to? Don't want to go messing with the wrong sheet.

bullit_dodger · 13-09-2022 4:58pm

https://www.boards.ie/discussion/comment/119613284#Comment_119613284

That and the website that was setup after it.

Niceday20 · 13-09-2022 6:41pm

https://www.boards.ie/discussion/comment/119611602#Comment_119611602

Thankfully the sun eventually came out in the afternoon, with only 3.25 generated by midday, 17kWh by 18:30 and almost as good as yesterday.

4.8kW South facing Mayo

championc · 13-09-2022 6:47pm

Having doubled my battery to 20kWh, I can simply ensure that I have about 50% remaining each morning, then nothing would then be wasted. I've capacity to charge without exporting while also having capacity to generate feck all and get to midnight.

So I don't need to worry at all now about the weather forecast

sligopaul · 14-09-2022 3:52pm

Just under 22kwh yesterday in Sligo from 6.6kw SE facing . Only running since Jul but 8 out of 13 days in Sept so far over 20kwhwith 10th producing 37.8kwh, happy with that

AckwelFoley · 14-09-2022 8:26pm

https://www.boards.ie/discussion/comment/119612846#Comment_119612846

14.7 yesterday squeezed another 100w today 14.8

Quite happy with that..

Tomorrow isnt expected to be good at all. Expecting single figures

Daily pv production

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