When I had my panels installed, I had the option to "embed" them, rather than have them mounted over the top of the roof tiles. I chose over the top for three

When I had my panels installed, I had the option to "embed" them, rather than have them mounted over the top of the roof tiles. I chose over the top for three reasons: 1) ease of replacement, panel dimensions change, so getting a new panel the right size in the future could be hard. 2) faff. Getting the roofer to talk to the solar people and agree on dimensions would have been expensive and time consuming. Assuming that they would actually agree to do it. 3) Thermal bridge. Because there is an airgap between the panels and the roof, I get a radiative barrier between my roof and the sun. combined electric and thermal panels seem like a grand idea, and perhaps I might get some in the future (not inside 10 years though) But, having them as your roof tiles I'm less keen on. It makes the MPPT less efficient and there are more connectors. for over roof type panels though, I think they are a slam dunk.