Just chiming in on this thread as I have had a similar experience to others here who are experiencing solar clipping despite being told the PW+ had an overdrive function that would cover solar generation of my 10.54Kw system. Put simply, my installation and experience prior to PTO was nothing short of a nightmare: water intrusion in the inverter, two inverters blown and replaced with no explanation, crews that were overworked and never met scheduled installation timelines - and yet, let the system believe all was satisfactory.
But more germane to this issue, I actually called off my installation in Aug. 2021 because nobody could explain to me why I had an inverter rated for 7.6kw but a solar system rated for 10.54. It didn't help that my PA was completely absent during the entire installation period despite reaching out directly for assistance multiple times. I did call the generic support line where a different PA gave me similar advice to several of you.... essentially not to worry, that the PW+ inverter had an overdrive function that would more than meet the generation of my system and I wouldn't experience clipping. Went ahead with installation in Sept. 2021, and received PTO in January. Now that we reached the longer days/warmer months (in CA) where the overdrive feature either would or would not come to fruition, like several of you, my system caps out at approx. 7.7kw, and I experience clipping for at least 3-4 hours a day. I've got to think that the cost of an extra 3.8kw inverter vs. the lost energy from clipping would pencil out over ten years. I've elevated to tesla, but given my past experience with the company and their managerial responses, I have very little confidence they will seek to resolve this.
I've already requested arbitration on other issues months ago and have yet to receive any formal response. Unfortunately, the solutions at this point may lie in legal remedy.... possibly class action if there are enough of us.
Hope this helps.