Off-grid component requirements
Solar PV Modules
The generation source of an off-grid solar system.
Solar PV modules convert sunlight into DC electricity. In an off-grid design, panel capacity is selected to recharge the battery bank while also supporting daytime loads.
Role in the System
Generate DC power from sunlight.
Recharge batteries through the charge controller or hybrid inverter.
Support daytime appliance use when solar generation is available.
Sizing Checks
Daily energy target in kWh.
Usable roof or ground area.
Shade-free sun hours and seasonal variation.
Panel wattage, string voltage and controller input limit.
Cleaning access and module tilt/orientation.
Required Documents
Module datasheet.
Performance warranty and product warranty.
Serial number list.
Panel layout drawing.
Site photos and shadow observation.
Safety Checks
Correct DC cable size and polarity.
MC4 or connector compatibility.
String voltage within controller/inverter range.
Mechanical fastening and wind-load suitability.
Safe cable routing away from sharp edges and water collection.
Handover Records
Installed module quantity and wattage.
Final module layout.
Warranty cards and datasheets.
Cleaning and inspection guidance.
Maintenance Notes
Clean panels as per dust level and site condition.
Inspect loose clamps, broken glass, hotspots or cable damage.
Keep nearby objects from creating new shade.