Solar panel production figures

1pudding1 said:
Another amazing day, I nearly had a perfect curve (for my system) if not for a couple of clouds late afternoon. I can never get a perfect curve due to the export limit of 5kW, which my Sunsynk inverter takes care of once the battery is full mid morning at the moment. I managed to get this interesting graph which shows MPPT2 being clipped to limit the export. All that lost generation :mad:


And the total result was :
Click to expand...
You could hold your battery from charging until mid morning to capture that generation?
 
projected 28.3, generated 30, exported 25.4 (4.5 during savings session).

New record day for the year and new all time record for March. Clear day projected for tomorrow also.


R03PtbE.jpeg


You can see the sun isn’t quite high enough to shine in my east welt panels fully so I get the ‘fondant fancy’ generation curve.
 
b0rn2sk8 said:
projected 28.3, generated 30, exported 25.4 (4.5 during savings session).

New record day for the year and new all time record for March. Clear day projected for tomorrow also.


R03PtbE.jpeg


You can see the sun isn’t quite high enough to shine in my east welt panels fully so I get the ‘fondant fancy’ generation curve.
Click to expand...
rotate that graph and you've got a perfect monkey face. :-)
 
Pretty much a perfect day here, although a bit hazy and not quite as much as yesterday, at 44.4 kWh was down about 1 kWh on yesterday, but the graph was much cleaner.



1pudding1 said:
I can never get a perfect curve due to the export limit of 5kW, which my Sunsynk inverter takes care of once the battery is full mid morning at the moment. I managed to get this interesting graph which shows MPPT2 being clipped to limit the export. All that lost generation
Click to expand...

I was going to suggest exactly what @b0rn2sk8 has, I don't think I'll have an issue, but I have 11.5kWp on my 8kW inverter, if I was to find I was clipping, I'd just force export some, so the batteries charged slower, you could do the same with yours, if its possible.
reef said:
This thread is a bad influence. It keeps me thinking about the garage roof (2 x 20sq m facing NE and SW) that I DONT need to do.
Click to expand...

southy1978 said:
It is a bad influence! I'd like to mount panels on the end wall of our house (south facing)
Click to expand...

It certainly is, why do you think I ended up with 43 panels, 12 on the garage, 3 on the rear wall of the house, another 12 on the NW roof, and the original 16 :D
 
Thanks for the suggestions. I use Predbat via Home Assistant to manage the batteries. I might post a msg on their FB page and see what they say about what I'm getting. Otherwise yes, I'll have to manually set charge rate to 0A for a few hours until max overall export approaches my limit of 5kW, then switch battery charging back on.
 
john_smith said:
That's a good idea. "if sunny, export battery from times x and y". would that enable you to generate at max?
Click to expand...
That's what I do even with 38 kWh of battery - ensures the twin kW hybrid inverters have a chance of using each of their full potential of 8.3 kW (16.6 kW total)
 
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