PV Installation survey

k6chris Forumite Posts: 737
Part of the Furniture 500 Posts Name Dropper Photogenic
About to have a domestic PV installation survey done.  What things should the surveyor be looking at?  What things should I be pointing out, or asking??
"For every complicated problem, there is always a simple, wrong answer"


  • Robin9
    Robin9 Forumite Posts: 11,747
    Part of the Furniture 10,000 Posts Name Dropper
    This is not a survey like a buildings survey -  the surveyor will be looking at access, cable routes, location of electrics -  he /she will want a copy of your bill for the MPAN
    Never pay on an estimated bill
  • Ectophile
    Ectophile Forumite Posts: 7,055
    Part of the Furniture 1,000 Posts Name Dropper
    They should be checking that your roof is strong enough to take the weight of the panels.
    They also need to check for any shading during the day, and work out how many panels they can fit, and where.
    If shading is an issue, you may need optimisers.  If it isn't, then optimisers are a waste of money.
    If it sticks, force it.
    If it breaks, well it wasn't working right anyway.
  • Screwdriva
    Screwdriva Forumite Posts: 984
    500 Posts Third Anniversary Name Dropper Photogenic
    To me , the most important output(s) of a survey are determining the # of panels that can fit (this must be measured) and where the wiring will run (internal or external) relative to inverter placement (attic/ utility room/ somewhere else).

    -  10 x 400w LG BiFacial Panels + SE P505 Optimizers + SE 3680 HD Wave Inverter. SE London (Zone 2). 
    -  40% of panels in an East/ West rooftop orientation.
    -  Viessmann 200-W on Advanced Weather Comp. (the most efficient gas boiler sold)
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