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New Installation Guidelines

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1. Site Assessment

  • Sun exposure: Choose an area with maximum sunlight year-round; avoid shade from trees, buildings, or chimneys.

  • Orientation & tilt: Panels typically face south (north in the Southern Hemisphere). Tilt close to your latitude for best annual output.

  • Space & structure: Ensure enough area and that the roof/ground structure can support the weight and wind loads.

How are Solar Panels Installed? | Solar CrowdSource

2. System Design

  • Sizing: Match system size (kW) to your energy needs and available space.

  • Panel type: Monocrystalline (high efficiency), polycrystalline (cost-effective), or thin-film (lightweight).

  • Electrical layout: Decide on string configuration, inverter type (string, microinverter, or hybrid), and battery (if any).

3. Permits & Safety

  • Permits/approvals: Check local codes, utility interconnection rules, and HOA requirements.

  • Electrical safety: Follow national/local electrical codes; include proper grounding and surge protection.

  • Fall protection: Use harnesses and safe access when working on roofs.

4. Mounting & Installation

  • Mounts: Secure rails to rafters (roof) or anchors (ground) using approved hardware.

  • Weatherproofing: Seal all roof penetrations to prevent leaks.

  • Clearances: Maintain airflow under panels for cooling and access for maintenance.

5. Electrical Connections

  • DC wiring: Use UV-rated cables; keep runs neat and protected in conduit where required.

  • Inverter placement: Install in a shaded, ventilated area close to the array.

  • AC connection: Connect to the main panel via a dedicated breaker; label all components clearly.

https://solar.smps.us/gridtie-solar-wiring.jpg

6. Testing & Commissioning

  • Inspection: Verify torque, wiring polarity, grounding, and insulation.

  • Startup checks: Confirm inverter settings, monitoring, and utility approval before energizing.

  • Documentation: Keep manuals, warranties, and system diagrams.

7. Operation & Maintenance

  • Monitoring: Track production to spot issues early.

  • Cleaning: Remove dust/debris as needed (frequency depends on environment).

  • Periodic checks: Inspect mounts, wiring, and seals annually.

Tip: If you’re new to electrical work or roof installations, consider having a certified installer handle the install or at least the final electrical connections and inspections.

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