This page provides some guidance to help you establish the suitability of PV for
A lot can be discerned using aerial mapping tools such as Google Earth, at some point
your chosen installer will need to visit the site anyway.
Orientation – if the PV array is to be roof mounted, is the roof North, East, South,
Roof slope or design – is your roof sloping or flat? What is the roofing material
- felt, tiled, bitumen, aluminium, plastic?
Shading – are there any trees, neighbouring buildings or items on your roof (if roof
mounted) such as air-conditioning units which shade the proposed area?
Structural – once you’ve established the theoretically size of the PV array, you
will need to confirm that the roof can withstand the weight. If you have up to date
structural drawings to hand, this can speed things up.
Location of switch room or incoming power supply – this will help with indicative
prices. A short cable run to the switch room/transformer/fuse box will be cheaper
than if it’s further away.
Size of available space – in very approximate terms, how much roof or ground space
is available. With this information you can attain an estimate of the size and cost
of the solar PV installation that can be incorporated.