I'm connected to the grid. Monitoring using the inverter manufacturers customer portal. Here's the most recent screenshot. The installer is currently at the house trying to get it working. There's some solar power now but it's very choppy. It's been a sunny day but the generation jumps from several kW to nearly zero.
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Sounds like the West facing panels are not wired properly into the inverter. And the issue with the second battery may be because it requires a Master/Slave set up.
I think you are correct in getting the installer involved so they can correct the problems. Keep us informed on how your system performs. Thanks
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New PV+Batteries system underperforming
I have just gotten a PV system with 5.46kW panels array and around 10kWh of battery storage, using a 6Kw inverter. It came online 2 days ago.
The inverter is a SAJ H1 and 2 batteries SAJ B1 5.1kWH each.
It's on a south west facing roof so it gets most direct sun in the afternoon.
I think I selected a bad installer because, the first issue was that the batteries weren't being detected at all by the inverter. So the installer came over and fixed it. Now only one battery is detected but not the second.
But the major issue is the under production of power. Yesterday it was a full sunny day and it only produced 1.6kWh the whole day, mainly before 10am, when the sun wasn't yet hitting the panels. During the day with direct sunlight on the panels, production was around 20w only!! I made the installer aware and he's very apologetic and said he'll come over soon.
However I wonder what could cause this? What is it most likely, that this installer is just clueless or could it be bad parts?
Last edited by aluis; 04-26-2023, 05:19 AM.
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