Nelson is one of NZ's sunniest cities — Nelson-Tasman regularly records the most sunshine hours in the country. Solar performance in Nelson is excellent, with 5–6 peak sun hours per day making it one of NZ's best solar locations. Here's what solar installation costs in Nelson in 2026.
Nelson Solar Installation Costs 2026
| System size | Nelson typical cost (supply + install) |
|---|---|
| 3kW system (small home / low usage) | $6,500–$10,500 |
| 6.6kW system (standard home) | $8,500–$14,000 |
| 10kW system (large home / EV charging) | $13,000–$21,000 |
| Battery storage — 10kWh (add-on) | $9,000–$14,000 |
| Solar hot water (evacuated tube) | $4,500–$8,500 |
| Panel replacement (per panel) | $280–$600 |
| System health check / service | $180–$380 |
All prices GST inclusive. Broadly regional.
Nelson Solar Performance
Nelson is one of NZ's sunniest cities — Nelson-Tasman regularly records the most sunshine hours in the country. Solar performance in Nelson is excellent, with 5–6 peak sun hours per day making it one of NZ's best solar locations.
Estimated annual generation (6.6kW system):
| Location factor | Annual generation estimate |
|---|---|
| Good north-facing roof | 9,000–11,000 kWh/year |
| Mixed aspect | 7,500–9,500 kWh/year |
| Partial shading | 6,000–8,000 kWh/year |
Solar Payback in Nelson
At current Nelson electricity prices (~$0.30–$0.38/kWh), a 6.6kW system typically pays back in:
- No battery: 6–9 years
- With battery: 9–13 years
Solar adds to property value and payback improves as electricity prices rise.
Choosing a Solar Installer in Nelson
- Look for SEANZ members (Sustainable Electricity Association of New Zealand)
- Ask for a production estimate based on your actual roof and location
- Compare warranties: panels (25yr), inverter (10–12yr), workmanship (5–10yr)
- Get at least 2–3 quotes — solar pricing varies significantly between installers
Find Nelson solar installers: Solar Installers Nelson | Post a Job Free
How much does solar cost in Nelson? Standard 6.6kW system (supply + install): $8,500–$14,000. Battery storage adds $9,000–$14,000.
Related: Solar Panel Cost NZ | Insulation Installers Nelson