SECTION 2 -.d -----
PHOTOVOLTAIC (PV) SYSTEM 
PV SYSTEM 
COMPONENTS 
TO INSPECT 
Protecting Your Energy Investment 
PV SYSTEM COMPONENTS TO INSPECT 
Regular visual inspections help identify developing issues early, 
support system performance, and protect both your PV system 
and the roof beneath it. 
• 
IZI 
m 
/ 
" 
~ 
,-o 
..._ 
D Solar modules (panels) 
D Glass surfaces 
D Aluminum frames 
D Mounting rails 
D Roof attachment points 
D Flashing 
D Visible wiring 
WHAT TO LOOK FOR 
t\z, D Conduit 
~ D Junction boxes (visible) 
ii 
D Inverter 
ID D Disconnect switches 
A 
D labels and warning placards 
~ D Roof beneath and around array J 
• 
D Vegetation and nearby trees 
@. 1 SOLAR MODULES 
EJI 
2 FRAMES 
✓ 
3 MOUNTING SYSTEM 
~ 4 FLASHING & ROOF 
,rn 
ATTACHMENTS 
D Cracked glass 
D Corrosion 
D 
Loose rails 
D 
Damaged flashing 
D Broken glass 
D Chips 
D 
Bent frames 
D 
Corrosion 
D 
Missing flashing 
D Heavy dirt accumulation 
D 
Missing hardware 
D Cracked sealant 
D Bird droppings 
D 
Loose fasteners 
D Salt deposits 
D Damaged corners 
D 
Bent brackets 
D 
Rust 
0 
Biological growth 
D 
Structural movement 
D Water staining 
D Delamination 
D Separation 
0 
Discoloration 
D 
Roof deterioration near 
0 
Burn marks 
penetrations 
0 
Loose modules 
L 
5 VISIBLE ELECTRICAL 
7 
COMPONENTS 
It 6 INVERTER & EQUIPMENT 
• 
7 VEGETATION & SHADING 
0 
Loose conduit 
D Warning lights 
0 
Damaged conduit 
0 
Tree branches contacting panels 
0 
UV-damaged wiring insulation 
D Corrosion 
D 
New shade patterns 
D Missing junction box covers 
D Water intrusion 
0 
Corrosion 
0 
Leaves beneath array 
0 
Burn marks 
D Damaged enclosure 
0 
Bird nesting 
~ 
Note: Electrical components should J 
D Blocked ventilation 
only be evaluated visually. Do not 
0 
Vegetation blocking airflow 
touch energized equipment. 
D Unusual noise 
APPENDIX A 
PV SYSTEM COMPONENTS TO INSPECT 
,. 
ANNUAL PROPERT'!' STEWARDSHIP INSPECTION GUIDE 
' 
STEWARDSHIP TODAY VALUE TOMORROW 

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