What to Look for When Hiring a Solar Installer in NZ
- REW registration
- Solar retailer certification (SEANZ member)
- Shading analysis and generation estimate
- Grid connection documentation
- 25-year panel warranty + 10-year inverter warranty
Red Flags to Watch Out For
- No shading analysis provided
- Generation guarantee not offered in writing
- Not SEANZ registered
- Won't handle grid connection documentation
Typical Costs Across NZ
5kW system: $12,000–$16,000 installed. 10kW: $20,000–$28,000. Battery storage: add $8,000–$14,000
Costs vary significantly by city — Auckland and Queenstown are typically the most expensive, while Invercargill and Dunedin are among the most affordable.
Licensing Requirements
Must be a Registered Electrical Worker (REW). Grid-connected systems require notification to lines company. Check the register →