Preparation and site assessment
Choose a location with unobstructed sunlight for at least six hours daily. Verify roof pitch, structural integrity, and local building codes before mounting. Measure the panel dimensions (≈540 mm × 540 mm) and note the mounting‑hole pattern to match the chosen bracket system.
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Mounting options
The Polly 100 W panel can be installed on a roof, pole, or ground‑mount frame. Roof‑mount kits use aluminum L‑brackets screwed into rafters; pole mounts employ a stainless‑steel pole with a tilt‑adjustable clamp; ground mounts use a galvanized steel frame with adjustable legs.
Roof‑mount checklist
- Locate rafters with a stud finder.
- Drill pilot holes and seal with UV‑resistant silicone.
- Attach brackets, then secure the panel with the supplied bolts.
Pole‑mount checklist
- Set pole height to achieve a 30‑45° tilt toward the sun's path.
- Use a torque wrench to tighten the clamp bolts to the manufacturer's spec (≈8 Nm).
Electrical connections
The panel's MC4 connectors plug directly into a charge controller rated for at least 12 V / 10 A. For a single 100 W panel, a PWM controller (e.g., 10 A) is sufficient; MPPT controllers improve efficiency but are optional.
Connect the positive (+) lead to the controller's positive terminal and the negative (‑) lead to the negative terminal. Ensure polarity is correct; reverse polarity can damage the controller.
Wiring considerations
- Use 10 AWG solar cable for runs under 10 m to limit voltage drop.
- Route cables away from sharp edges and hot surfaces.
- Apply UV‑stable cable ties and seal all connections with heat‑shrink tubing.
System integration and testing
After wiring, connect the controller to the battery bank (12 V lead‑acid or lithium) following the controller's wiring diagram. Turn on the controller and monitor the voltage and current readouts. A healthy 100 W panel under full sun should deliver 5‑6 A and a voltage around 17‑18 V.
If the readings are low, check for shading, loose connections, or a faulty panel. Adjust the tilt seasonally to maintain optimal sun exposure.
Maintenance and longevity
Clean the glass surface quarterly with mild soap and water; avoid abrasive cleaners that could scratch the anti‑reflective coating. Inspect mounting hardware for corrosion every six months and tighten any loose bolts.
Operating temperature affects output: each 1 °C rise above 25 °C reduces power by ~0.5 %. Ensure adequate airflow under the panel to mitigate heat buildup.