Solar costs vary 10–20% within a single state based on local permitting, utility rates, labor markets, and city-specific incentives. Here is a city-by-city breakdown for your state.
New Hampshire Solar Cost Overview
New Hampshire solar costs range from $2.80–$3.30/W. Seacoast cities (Portsmouth, Nashua) run slightly higher. No state rebate (repealed 2024) but NEM 2.0 credits (~85% retail) are locked through 2041, ~66% of towns exempt solar from property tax, and NH has no sales tax. Payback ~9.5 years at $0.27/kWh average rates.
New Hampshire statewide average: $3.18/W (EnergySage) • NuWatt: $3.15/W • Avg utility rate: $0.27/kWh
City-by-City Cost Breakdown
| City | $/W Range | 10kW System | Utility Rate | Permitting | Local Incentive |
|---|---|---|---|---|---|
| Manchester | $2.85–3.20 | $24,200 | $0.25 | 2-3 weeks | NEM 2.0, property tax exempt |
| Nashua | $2.90–3.25 | $24,600 | $0.25 | 2-3 weeks | NEM 2.0, property tax exempt |
| Concord | $2.85–3.15 | $24,000 | $0.26 | 2-3 weeks | NEM 2.0, property tax exempt |
| Dover | $2.80–3.15 | $23,800 | $0.25 | 2-3 weeks | NEM 2.0 |
| Rochester | $2.80–3.10 | $23,600 | $0.25 | 2-3 weeks | NEM 2.0 |
| Keene | $2.80–3.15 | $23,800 | $0.24 | 2-3 weeks | NEM 2.0, property tax exempt |
| Portsmouth | $2.95–3.30 | $25,000 | $0.25 | 2-4 weeks | NEM 2.0, property tax exempt |
| Laconia | $2.80–3.10 | $23,600 | $0.25 | 2-3 weeks | NEM 2.0 |
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Why Costs Vary Across New Hampshire
- Permitting: Cities like Manchester may charge more and take longer than smaller towns.
- Utility rates: Higher rates ($0.26/kWh vs $0.24/kWh) mean faster payback in some cities.
- Labor costs: Metro areas command higher installation labor rates.
- Local incentives: Some cities offer additional programs on top of state incentives.
Get an Estimate for Your City
These are average ranges. Your actual cost depends on your specific roof, shading, system size, and equipment choices. Get an instant estimate for your exact address:
Solar Costs in Other States
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