Solar panel production figures

gpuerrilla · 26 Jan 2023 at 18:45

Welshman said:
Really??? Are you on pvout???

Welshman · 26 Jan 2023 at 18:47

gpuerrilla said:

I meant about evening out my spell

gpuerrilla · 26 Jan 2023 at 18:48

Possibly not the overall but more cloud over the valleys would help potentially! :cry:

pvout I need to add January's data but will do the full month now we are nearly done with January.

Welshman · 26 Jan 2023 at 18:53

gpuerrilla said:
Possibly not the overall but more cloud over the valleys would help potentially!

pvout I need to add January's data but will do the full month now we are nearly done with January.

How much you got for january???

gpuerrilla · 26 Jan 2023 at 18:56

50 so far but I think December wont be caught. Too many bleak days in comparison to the rest of the UK but my main inhibitor is the low sun angle where my roof on other part of the house shades the W panels too much.

Welshman · 26 Jan 2023 at 19:00

gpuerrilla said:
50 so far but I think December wont be caught. Too many bleak days in comparison to the rest of the UK but my main inhibitor is the low sun angle where my roof on other part of the house shades the W panels too much.

So no chance of catching me then….106.2 for january

SoliD · 26 Jan 2023 at 20:09

5.6kwh here today not bad for half my panels shaded most of the day and no optimisers. roll on 10 or so days time when one of my strings will be fully in the sun again!

katie279 · 26 Jan 2023 at 20:37

17.58kwh today! But had a WiFi melt down, so currently deciding on new router!

john_smith · 26 Jan 2023 at 20:47

I'm looking to move into 5th spot soon on the efficiency league table. I think with a good year I can get to an efficiency of 3.

Welshman · 26 Jan 2023 at 20:57

My efficiency for the month is currently 32.77 kwh/kw

john_smith · 26 Jan 2023 at 21:23

Welshman said:
My efficiency for the month is currently 32.77 kwh/kw

That's really good. Much higher than the 1.044 you're showing on PVOutput.

Welshman · 26 Jan 2023 at 22:37

john_smith said:
That's really good. Much higher than the 1.044 you're showing on PVOutput.

I think thats a daily average, rather than actual monthly efficiency. I mean if youve produced 106kwh off a 3.24 system, then it goes without saying that effiency must be higher than 1.044

ok…the reason pv shows 1.044, is because they use the daily average generation, which is 3.372 and not actual monthly generation figure.

were as my figure is using the total generated for the month/system size

john_smith · 27 Jan 2023 at 07:23

Welshman said:
I think thats a daily average, rather than actual monthly efficiency. I mean if youve produced 106kwh off a 3.24 system, then it goes without saying that effiency must be higher than 1.044

ok…the reason pv shows 1.044, is because they use the daily average generation, which is 3.372 and not actual monthly generation figure.

were as my figure is using the total generated for the month/system size

PVOutput is generated as such: (Generation/Days)/SystemSize. Based on your numbers above you're at 1.2583 for the 26 days of January so far. So you're right your efficiency is higher than 1.044. Unfortunately a little lower than 32.77.

PVOutput will need a whole year to get an accurate efficience figure. Anybody joining the league in the winter, like us, will see their efficience numbers increase as our generation goes up.

Welshman · 27 Jan 2023 at 07:34

john_smith said:
PVOutput is generated as such: (Generation/Days)/SystemSize. Based on your numbers above you're at 1.2583 for the 26 days of January so far. So you're right your efficiency is higher than 1.044. Unfortunately a little lower than 32.77.

PVOutput will need a whole year to get an accurate efficience figure. Anybody joining the league in the winter, like us, will see their efficience numbers increase as our generation goes up.

thats incorrect....as thats average efficiency, not actual efficiency.....

So my daily average is 4.08kwhs / System size = 1.26....... but i'm calculating total production/system size which is 106 / 3.24 = 32.77 kwh/kw. so during the month of january each kilowatt of panels has created 32.77 kwh of electricity ( by the way thats how @Ron-ski calculated it for our league table)

Hope that clears up the issue

as per this picture - its average efficiency

john_smith · 27 Jan 2023 at 07:41

I've emailed PVOutput to let them know. Cheers.

Welshman · 27 Jan 2023 at 07:46

john_smith said:
I've emailed PVOutput to let them know. Cheers.

this is how the table looked at the end of November. You can see we took total production / system size

john_smith · 27 Jan 2023 at 07:50

I'm just looking at this page. https://pvoutput.org/ladder.jsp?o=gss&d=desc&tid=1661 Ordered by efficiency. Obviously your one above looks much better for me. Like I said, I've emailed PVOutput to let them know they are doing it wrong.

Thanks.

Welshman · 27 Jan 2023 at 07:55

john_smith said:
I'm just looking at this page. https://pvoutput.org/ladder.jsp?o=gss&d=desc&tid=1661 Ordered by efficiency. Obviously your one above looks much better for me. Like I said, I've emailed PVOutput to let them know they are doing it wrong.

Thanks.

when i click on that link, i only see my own production. i dont see anyone else's for some reason.

Welshman · 27 Jan 2023 at 08:50

Not looking like we going to get much today.....predict around 2kwhs

john_smith · 27 Jan 2023 at 09:03

Welshman said:
when i click on that link, i only see my own production. i dont see anyone else's for some reason.

Weird. I opened it in a new private browser window and it's ok.