1) Site conditions
a) Site location and indication of access route (GPS Coordinates)
b) Site drawings indicating i) space for materials storage/laydown area and equipment (crane positioning as required for rooftop); ii) location of any neighboring buildings, structures, vegetation, that might cause shadows on the proposed PV system
c) Pictures if available
2) For Rooftop PV System:
a) Roof plans, including existing skylights, walkways, vents, prohibited areas, etc.
b) Structural conditions, load tolerance calculations, roofing material, type of insulation
c) Access limitations for rooftops: limited time periods for materials delivery? Working times for installation?
3) Electrical connection
a) Electrical grid connection point: location and voltage level for feed-in
b) Indication of possible locations for inverters and transformer (if MV connection)
4) Electricity consumption:
a) Monthly electrical utility bills for the past 12 months (actual cost and consumption)
b) Base and peak load level, time of peak load