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12.8 kWh Tesla Solar Glass roof only outputs max of 7.9kwh
It's been about 7 weeks since the completion of our 12.8 kWh roof and (3) Powerwalls. We got the OK to power within a week. The Max kWh the roof will put out is between 7-7.9kWh . I've been watch carefully and reviewing the daily Performance on the app. We've had plenty of cloud free days and no haze. What's concerning is that when it peaks at 7-7.9 it starts to immediately decline to about 5kWh. It won't hold at higher rates for more than 10-15 min. Very easy to see the declines on the app. The daily result is only about 28% Self Powered. The (3) Powerwalls never charge to more than about 20% each day and that get used fairly quickly. Would appreciate any thoughts...
I have been on the phone with Tesla and they also agree that something is off as they can read it remotely. My first guess is dip switches or general wiring issue oil the inverters.