Invisible solar is a genuine use case in areas with shitty power tripping HOAs, but even regular solar takes a decade to break even, so if you sell something like that at inflated Tesla level prices then they simply never will and there is no reason to buy them in the first place.
That's where regulation comes in. California for example made it almost impossible for a HOA to block. You're not allowed to add more than $1K to the project with your 'requirements'
Of course, the solution to that is to nullify all HOAs, power tripping or not. They were a mechanism to enact segregation, and as such should've had no place when created, and certainly has no place now.
My solar install took about 4.5 years to break even, which I understand is maybe a bit below average for where I live (Ireland).