Photovoltaics are still a troublesome thing to have installed on roofs. Without being able to disable them, firefighters won’t try to chop through them. Maybe a photovoltaic that requires some kind of priming power to keep in power generation mode would prove more attractive. Cur the priming power and now they can be chopped through safely.
I do understand they are a fire hazard. Their modules do not require grounding. Their patents which I follow and read some are tremendously complicated as to electrical design features. I have an indirect investment interest in the aluminum ink they use—they can use foil aluminum also.