Hello. I recently had an 11.2kW system installed with two PW+ on 6/26/2023. At the moment I am still waiting for an inspection to happen to the system is in self consumption mode.
For roughly a month after the installation I was seeing fantastic production numbers. Peak output was roughly 13.2kWh and total output was > 100kWh each day. On July 25th a Tesla employee arrived to the house completely unannounced to finish something. He said I would be out of power for a few minutes. That morning my system was already producing 11kWh at ~10:30AM and after the visit I have never seen production greater than > 8.5kWh ever again. I expressed my concern with this while he was at the house and explained how self consumption works (yeah I know) and basically told me to keep an eye on things but wait until PTO.
Day before Tesla visit
Day of Tesla visit
It has been almost a month since this day and again, I have never seen greater than 8.5kWh (and this may have been a spike related to partial cloud cover). Below is a picture of what my production looks like, with me charging my Tesla Model 3 + PWs and outstripping the supply of the solar panels.
I don't believe that my solar production would drop 33% due to natural causes overnight and the production seems directly tied to the technician visit. I'm wondering what the community thinks about this. I am obviously quite a bit concerned because this is a fairly significant investment and 33% production loss is a very significant amount.
As of recently, I have setup the Powerwall Dashboard to collect more details about what is going on and I don't see anything clearly broken, just feels that overall production is lower than it should be. There are some alerts but I'm not sure if they are noise. Below is my configuration with 28 panels. It seems that the top right cluster of panels is string S3 and S4. Bottom right is S2. Bottom left and top left are S1A/S1B?
Looking at the Grafana dashboard it just seems like each panel is peaking at ~300w out of the 400w max rating per panel.
South East Facing (peak in AM)
String A (7 panels) peak at 2.19kW / 2.8kW
String B (6 panels) peak at 1.92kW / 2.4kW
String C1 (3 panels) peak at .914kW / 1.2kW
North West Facing (peak in PM) (I realize I capture these values too soon)
String A1 (6 panels) peak at ~1.6 / 2.4kW
String B2 (6 panels) peak at ~1.6 / 2.4kW
Any guidance would be greatly appreciated thank you.
For roughly a month after the installation I was seeing fantastic production numbers. Peak output was roughly 13.2kWh and total output was > 100kWh each day. On July 25th a Tesla employee arrived to the house completely unannounced to finish something. He said I would be out of power for a few minutes. That morning my system was already producing 11kWh at ~10:30AM and after the visit I have never seen production greater than > 8.5kWh ever again. I expressed my concern with this while he was at the house and explained how self consumption works (yeah I know) and basically told me to keep an eye on things but wait until PTO.
Day before Tesla visit
Day of Tesla visit
It has been almost a month since this day and again, I have never seen greater than 8.5kWh (and this may have been a spike related to partial cloud cover). Below is a picture of what my production looks like, with me charging my Tesla Model 3 + PWs and outstripping the supply of the solar panels.
I don't believe that my solar production would drop 33% due to natural causes overnight and the production seems directly tied to the technician visit. I'm wondering what the community thinks about this. I am obviously quite a bit concerned because this is a fairly significant investment and 33% production loss is a very significant amount.
As of recently, I have setup the Powerwall Dashboard to collect more details about what is going on and I don't see anything clearly broken, just feels that overall production is lower than it should be. There are some alerts but I'm not sure if they are noise. Below is my configuration with 28 panels. It seems that the top right cluster of panels is string S3 and S4. Bottom right is S2. Bottom left and top left are S1A/S1B?
Looking at the Grafana dashboard it just seems like each panel is peaking at ~300w out of the 400w max rating per panel.
South East Facing (peak in AM)
String A (7 panels) peak at 2.19kW / 2.8kW
String B (6 panels) peak at 1.92kW / 2.4kW
String C1 (3 panels) peak at .914kW / 1.2kW
North West Facing (peak in PM) (I realize I capture these values too soon)
String A1 (6 panels) peak at ~1.6 / 2.4kW
String B2 (6 panels) peak at ~1.6 / 2.4kW
Any guidance would be greatly appreciated thank you.