My 7.6KW system got installed a week ago i am still waiting PTO. System in full sun will max at 2.8KW. i have two strings coming from the roof one independent for 3 panels facing east with shade to mppt 1, and 16 panels in a combined string facing east no shade mppt 4 jumber with 3. System performance is horrible at 2.8. contacted tesla they said you are still in pto and power is reduced. I am not sure this is the case since my battery is not full! Attached image of my wiring and production