Key safety considerations for home solar
Solar installations are generally safe when designed and installed properly, but homeowners should be aware of a few safety-related topics to protect people, property, and emergency responders.
Electrical safety:
- DC voltage: Solar arrays produce DC voltage, which can be hazardous during installation or maintenance. Proper labeling, disconnects, and grounding are essential.
- Inverter and wiring: All wiring must meet code and be inspected to avoid loose connections, overheating, or fire risk.
Fire and emergency response:
- Rapid shutdown: Codes require rapid shutdown systems that reduce array voltage during emergencies so firefighters can safely operate on rooftops.
- Access pathways: Installations should preserve roof access and pathways for emergency personnel.
Structural and weather safety:
- Roof load: Mounting systems should account for wind uplift and snow loads. Installers should verify roof strength before mounting.
- Weatherproofing: Proper flashing and sealing prevent roof leaks where mounts penetrate roofing material.
Maintenance and operational safety:
- Professional service: Electrical and structural work should be performed by qualified technicians.
- Avoid DIY high-voltage work: Simple cleaning is fine for many homeowners, but electrical diagnostics should be left to professionals.
By following building codes, using certified equipment, and working with reputable installers, homeowners can minimize risks and ensure a safe, reliable solar installation.