Solar panel production figures

200sols said:
From my observations direct south is better in deep winter but east/west split is better in summer. (south)West is especially nice for flux exporting in summer.
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Pure south facing always wins with all being equal.
Technically the sun is strongest mid day when it best aligns with S facing panels.

But the orientation angle of panels also affects the performance in regards relative angle to the sun. So a better angled panel facing E or W could outperform a S facing with a less optimum angle.
Much steeper angle for winter, much flatter one for summer.

Sun rises in the NE in summer and sets in the NW so E and W panels get basically a full quota of sun from reasonably the full arc of where they will generate at a decent rate.
However a S facing will get this pretty much all year, with winter sun rising in the SE and setting in the SW.
Thats why E and W panels suck so badly in winter, we don't ever get a sun positioned directly in line with the panels.

Agree there is a benefit to W in regards flux but also batteries in general.
Typically cheap units are overnight, so a West facing array generation will be pretty much time opposite to the cheap charging window. Where as East facing will start the day with a full battery, not have any real place to send excess generation, then by early afternoon the array will start to decline significantly in generation and its still a long time until the next charge window.
Peak west facing generation almost perfectly aligns with the start of Flux.


Anyway, 6.8 again for me today, same as yesterday so I would say within 0.1kwh thats my full potential early/mid Jan.
 
11.17 kWh generated, a total of 6.121 kWh exported, 2.26 before my forced export, which means solar actually topped my batteries up to full today, although they also hit 100% just before 5 this morning.
 
So i was at my new house today with the previous owners (complete next week)

At around 2pm they had yeilded 11kw today which i thought was good. I never asked before i bought but theres 26 x 410w panels so summer should be intresting.

I am totally new to all this i may add. So i have no idea what to expect
 
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Regy53 said:
Whats a fit

They do sell back to grid if thats the meaning
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Feed In Tariff is a scheme that closed in March 2019 (I think), so if the panels have been in before then they will likely be on a FIT. The scheme pays a set amount per kwh produced by your regardless of whether you use those kwh yourself or export them. It is assumed that 50% of the generated kwh are exported and the scheme pays some pence per kwh, plus a lesser amount of pence are paid per kwh for the total kwh produced.
E.g. If an array produced 1000 kwh, FIT could pay 6p for 500 of those kwh, plus 3p for the 1000 kwh
At least I think that's how it works!
 
rangor gubbins said:
Feed In Tariff is a scheme that closed in March 2019 (I think), so if the panels have been in before then they will likely be on a FIT. The scheme pays a set amount per kwh produced by your regardless of whether you use those kwh yourself or export them. It is assumed that 50% of the generated kwh are exported and the scheme pays some pence per kwh, plus a lesser amount of pence are paid per kwh for the total kwh produced.
E.g. If an array produced 1000 kwh, FIT could pay 6p for 500 of those kwh, plus 3p for the 1000 kwh
At least I think that's how it works!
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Ah thank you, im not aware it has this i think these were installed in the last few years to be honest the house has done my mind as it has quite a bit of tech going on involving heating and electric so I’ve forgot a lot of stuff
Mercenary Keyboard Warrior said:
410w panels are pretty unlikely to date back to FIT days, not impossible (just possible I think) but unlikely I would say on balance.
Unless they are old monster size 410w panels

But anyway, welcome to the solar club regy
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Yes thank you, im pretty sure it was a recent install, it has one tesla battery install but i think it will need another if its reasonable to install

Il grab a pic in a few weeks once in :D

It’s going to be a sharp learning curve for it all , exporting importing and all that jazz when to do what and how to reduce power usage at key times
 
Regy53 said:
Ah thank you, im not aware it has this i think these were installed in the last few years to be honest the house has done my mind as it has quite a bit of tech going on involving heating and electric so I’ve forgot a lot of stuff

Yes thank you, im pretty sure it was a recent install, it has one tesla battery install but i think it will need another if its reasonable to install

Il grab a pic in a few weeks once in :D

It’s going to be a sharp learning curve for it all , exporting importing and all that jazz when to do what and how to reduce power usage at key times
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We have another thread for solar and batteries as opposed to this one, thats the better one for system type talk, once your in grab a few photos and I am sure someone will quickly bring you up to speed

Any idea of panel facing? Thats a 10kw array there.
Based on the fact that peak summer you can generate 5-6x that 10kw on a good day you could well be in for 50kwh + days

Your probably talking 8,000-10,000 kwh a year generation depending on facing, angle, shading etc
 
Extra panels are doing the job. We're generating 206w instead of 107w. :p

Totally grey and dark again. Its going to be a poor one.
 
Same here, probably our worst day since installation. So far just 200w generated, a very grey day which was forecasted 7kWh, the highest peak time 1 hour ago....
 
A dreadful day, 1.42kWh

New panels (4.62kW) seem a bit more efficient than the old ones (4.8kW), as both arrays generated exactly 0.71kWh. Either that or they're just cleaner!

Had to get my installer to send out a wireless dongle for the second inverter as they forgot to install it yesterday :rolleyes: , so Ive got no data from that. The CT clamp was installed at least, so I can see the power coming over and can work it out that way for now.
 
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