I believed in Musk's vision
The idea has it's pros and that's why there's a market. Autarq, paXos, SolteQ und Nelskamp are the competition.
Sadly, in our case (scenic protected village core) they count still as solar, which isn't allowed. They would make the most sense there. Our administration should get an update.
And even if they all have gone bust at the end of their lifetime (~30 years), you'll still have a roof.