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What's the max generation you've seen for a 16.2kWh system at any given time?
- Thread starter njhtran
- Start date
that seems low
I have an 11.8 kW system and I hit 6.5kW at noon. Which direction do your panels face?
The OP, yours, and my systems all peaked within a few percentages of their capacity (50-55%). Kind of interesting.
FWIW, the highest I have ever seen on our system was 10.1kW in early May. I attribute this to super clear air (midst of pandemic shutdown), cool weather, and cloud edge effect (a few clouds drifting over)
Those numbers definitely sound low to me, but it’s going to be very dependent on panel orientation, shading, and location. I have a 15.12kW system and my system routinely peaks at 10-11kW this month. A month and a half ago I would regularly see it go as high as 12-13kW during peak times. The highest I ever saw it get was 15.3kW, but that was only for a minute or two and due to the cloud edge effect.
SoCal Dave
Member
ya, mine are mostly NW facing. I'll call Tesla on Tues to see what's going on. Just one challenge after another with this installation.
@socaldave what software did you use to build that spreadsheet?
@socaldave what software did you use to build that spreadsheet?
SoCal Dave
Member
Just the export from the Tesla app.
Did you check to make sure both of your inverters are producing power? You can move the red switch to P for 2 seconds and see what the LEDs show - Inverter Status and System Performance Indications | SolarEdge
Or you can use the MySolarEdge app and view in read only.
I didn’t know that about the app thanks that’s handy.
yes the system is producing power during the daytime on both inverters solid green.
Thanks for the suggestion on the solar edge app too. I tried that on both boxes and only one is able to connect to the app. The other inverter won’t connect to the app and it also doesn’t have an explicit P label on its red switch even though toggling it to the left does initiate the app to look for it. It ends up timing out after looking for the inverter. In your setup you’re able to connect to both with the app?
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SoCal Dave
Member
My install has a single 10kW inverter. My 12.24kW produced 58.1kWh today. You don't have trees or anything which would reduce your production, right?
SoCal Dave
Member
Your estimated production as expected is significantly higher than mine. 23MWh vs 18MWh. I hope Tesla figures it out for you.
It’s not too unusual for the inverters to generate different amounts, sometimes they don’t split the panels evenly between the two inverters and panel orientation can affect it too. For example, if one inverter has all or mostly northwest facing panels then that one will likely generate less than the other inverter.
bkp_duke
Well-Known Member
Mine are in line with this. I hit 8.9kw on a 12.1 kw system yesterday about 1:30. About 15% of my panels are east facing, with the rest south or west facing.
bkp_duke
Well-Known Member
Heavy layer of dust? Hazy / humid air? Super hot temps?
All of these negatively impact production.
Looks like most of the panels are NW facing. That likely is part of the issue.
We have some north-facing parts of our solar roof and I suspect they are not producing much these days. In fact, we were warned about this by the installers. The said one section would probably only produce during May-July.
SoCal Dave
Member
Njhtran and I live close to each other and our installs were done around the same time. The only differences is he has the 16kW and I have the 12kW and our panel orientation. So it seems to be a system issue if he is producing less than me.
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