New Hampshire Solar Overview
New Hampshire surprised me when I dug into the numbers. Sure, the Granite State is not Arizona, but those high electricity rates change everything. At $0.22/kWh, every kilowatt-hour your panels produce is worth real money. Add in no state sales tax, utility rebates, and solid net metering, and the payback math works out better than you might expect. The key is working with your specific utility to understand their current programs.
New Hampshire may not have desert sunshine, but high electricity rates and supportive policies make solar a smart investment. The Granite State offers good net metering, utility rebate programs, and tax benefits that offset the moderate New England climate.
Why New Hampshire Works for Solar
- High electricity rates: ~$0.22/kWh makes solar valuable
- Good net metering: Monthly credits at retail rate
- Utility rebates: Programs through major utilities
- Property tax exemption: Solar excluded from assessment
- No state sales tax: Saves on equipment costs
State Incentives
New Hampshire Programs
- Utility rebates: Check Eversource, Liberty, Unitil programs
- Property tax exemption: 100% of solar value excluded
- No state sales tax: NH has no sales tax on anything
- Net metering: Retail rate credits, monthly rollover
Federal Options
- Purchased systems: No federal credit (25D ended 2025)
- PPA/Lease: Still benefits from 30% credit through 2027
Net Metering & Utilities
Major Utilities
| Utility | Coverage Area | Net Metering |
|---|---|---|
| Eversource | Southern & coastal NH | Yes, with rebates |
| Liberty Utilities | Central & northern NH | Yes, with rebates |
| Unitil | Seacoast region | Yes, with rebates |
Net Metering Details
- Credit rate: Retail electricity rate (varies by utility)
- Rollover: Monthly credits carry forward
- Annual true-up: Policies vary by utility
- System caps: Verify current limits with your utility
Solar Costs
| System Size | Cost Range | Annual Production |
|---|---|---|
| 6 kW | $17,400-$19,800 | 6,900-7,500 kWh |
| 8 kW | $23,200-$26,400 | 9,200-10,000 kWh |
| 10 kW | $29,000-$33,000 | 11,500-12,500 kWh |
Cost Factors
- Price per watt: $2.90-$3.30 typical range
- No sales tax: NH has no state sales tax
- Utility rebates: Can reduce upfront costs significantly
- Snow guards: Recommended for roof protection
New England Climate
Production Factors
- Peak sun hours: 4.0-4.2 hours daily average
- Seasonal variation: Strong summer, weaker winter
- Snow: Usually slides off; panels help melt it
- Cloud cover: More overcast than Southwest states
Production Estimates
- Annual production: 1,150-1,250 kWh per kW installed
- 8 kW system: ~9,200-10,000 kWh/year
- Southern NH: Slightly better than northern regions
- Panel efficiency: Cold temps actually boost output
The Bottom Line
New Hampshire solar works because of economics, not climate. High electricity rates (~$0.22/kWh) mean each kWh you generate is worth more. Good net metering, utility rebates, property tax exemption, and no sales tax make the Granite State surprisingly favorable for solar despite New England weather.
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