give me a great a good idea on the area's which i could market, going to try it and see what happens,
Could be a winner???..
Just remember that it's only showing those using (& paying for) their services.
Case in point; myself having a system installed just before the old cut-off, residing within that great white expanse of East Anglia, above Cambridge. And there's a not unnoticable number of PV panels in the area.