these cant be rentaroof installs they look after their investment better than council installs.
the only problem after laughing at the picture is council case studies will reflect solar has failed to produce it's targets.
looks like a case of principal installer or they guy who greased the council committee for the contract farmed it out to a sub team probably a relative to put the small installs on, looks very first time install, mapped out whilst on site no preparation, probably a roofer.