A 2,000 square foot home in New Hampshire typically uses about 899 kWh per month at the state average rate of 21.9¢/kWh (EIA). With 4.2 peak sun hours per day, most homeowners need a 8.6 kW solar system — roughly 22 panels at 400W. After the 30% federal ITC, net cost is about $18,000, with 8.8-year payback and $68,100+ in estimated 25-year savings.
Content roles: This page is your New Hampshire-specific sizing decision for 2,000 sq ft. For national methodology and roof/orientation depth, see the 2,000 sq ft national guide. For bill-based sizing, see $150/month (~$197/mo equivalent in New Hampshire). Policy depth: New Hampshire solar data.
⚡ System Size
How Many Solar Panels for a 2,000 sq ft House in New Hampshire?
New Hampshire electricity rates and sun hours change panel count versus the US average:
System size (kW) = Annual kWh ÷ (Peak sun hours × 365 × 0.82)
For 2,000 sq ft in New Hampshire:
Estimated monthly usage: ~899 kWh
Peak sun hours: 4.2 h/day
System size:8.6 kW (~22 × 400W panels)
Metric
New Hampshire
US average
Rate
21.9¢/kWh
16.3¢/kWh
Sun hours
4.2 h/day
4.5 h/day
System size
8.6 kW
8.0 kW
Panels (400W)
22
21
New Hampshire requires a larger system than the national average for the same square footage. Use our solar system size calculator with your actual utility bills for a precise ZIP-level result.
Find your exact solar savings
Enter your ZIP code for a personalized estimate using your state's electricity rate and sun hours.
💰 System Cost
What Does Solar Cost for a 2,000 sq ft Home in New Hampshire After the ITC?
At $3.00/W installed (SEIA 2026), a 8.6 kW system in New Hampshire costs about $25,700 before incentives. The 30% ITC saves ~$7,710, for $18,000 net cost.
📈 Payback Period
How Long Is Solar Payback on a 2,000 sq ft Home in New Hampshire?
A 8.6 kW system saving ~$2,055/year pays back in about 8.8 years after the ITC. At 3% rate escalation, 25-year utility spend totals ~$86,100 vs $18,000 net solar — $68,100+ lifetime advantage.
Solar vs utility company · 25-year comparison
Total cost of staying on the grid vs owning solar for a $300/month bill (national average assumptions).
New Hampshire Solar Incentives for a 2,000 sq ft Home
New Hampshire’s Residential Renewable Electrical Generation Rebate Program provides rebates of up to $0.20/W (capped at $1,000) for solar PV systems. New Hampshire also has a strong net metering law and a Renewable Portfolio Standard. The NH PACE program offers financing for energy improvements.
Direct answers for US homeowners in New Hampshire.
At New Hampshire's average rate of 21.9¢/kWh and 4.2 peak sun hours, a 2,000 sq ft home (~899 kWh/month) typically needs a 8.6 kW system — about 22 panels at 400W. See the [national 2,000 sq ft guide](/guides/how-much-do-solar-panels-cost-2000-sq-ft-home/) for methodology.
A 8.6 kW system in New Hampshire costs roughly $25,700 installed before incentives. The 30% federal ITC reduces net cost to about $18,000. New Hampshire's Residential Renewable Electrical Generation Rebate Program provides rebates of up to $0.20/W (capped at $1,000) for solar PV systems. New Hampshire also has a strong net metering law and a Renewable Po...
At $18,000 net cost and ~$2,055/year in bill savings, simple payback in New Hampshire is about 8.8 years.
Most New Hampshire homeowners in this size range see **$68,100+** estimated 25-year savings vs utility power. Equivalent monthly bill: **~$197** — compare the [$150/month bill guide](/guides/solar-panels-150-month-bill/) for bill-based sizing.
The US average needs a 8.0 kW system at 11.0-year payback. New Hampshire needs 8.6 kW with 8.8-year payback at 21.9¢/kWh and 4.2 sun hours.
$150/month electric bill by state
System size and payback vary by electricity rate and sun hours — see your state.