OP
Earthstore
Totally agree. I've known people be refused planning permission due to roofing tiles being the wrong shade, yet those panels are allowed???
Strange as it may seem, but yes you are allowed to have PV panels on your foor under the permitted development rights, as long as they are under 200mm from the plain of the roof, even in a conservation area.
You do need planning permission on listed buildings though, and for ground mounted systems too.