https://nabendynamo.de/wp-content/uploads/2021/06/20210426_1...
While not quite panel-sized, it's much larger tiles and there's not another roof underneath. Probably makes most sense with a new roof, though. The problem is that when a roof lasts 50--80 years, that's not a very big market just for new roofs.
Thanks for sharing.
Apologies, my google-fu is weak; I couldn't find more details. It's SON's building? I couldn't find that roof top at that address (using Google Maps).
Here's as far as I got: https://gemini.google.com/share/bef19f2b145c
The article from which I've linked the image is here (in German, though): https://nabendynamo.de/unser-neues-produktionsgebaeude-steht...
The roof is from Sunstyle, as detailed in the article: https://www.sunstyle.com/
Gemini seems to have read that article, taken a few details, embellished a few more, and not answered your question.
Flush with the rest of the roof seems like a mistake. What if you need/want to replace them with a different sized panel?
The big problem is that because there is no real ventilation, the panels get hotter and don't produce as much power.
What you put under them also has an effect on how waterproof your roof is long term, plus when you need to replace them finding ones that are the right size are also a pain.
Also see https://roofit.solar/ used in a few houses… mainly self build a or architect designed
If you experience any failure, like a falling tree limb, you're now _required_ to replace panels to restore the integrity of your home.
It's far simpler to be able to just restore a roof, which any builder can do, and then come back and restore the panel layer again later.