Is solar worth it in 03801 (Portsmouth, NH)?

With an average payback period of 8.9 years and 25-year savings of $42,000, solar panels in Portsmouth, New Hampshire are a solid investment.

How much do solar panels cost in 03801?

The average cost of a 6kW residential solar system in Portsmouth, New Hampshire is $15,000 before incentives. The federal 30% Investment Tax Credit reduces this to about $10,500.

How much solar electricity does 03801 get?

Portsmouth receives 4.15 kWh/m²/day of solar irradiance. A 6kW system in zip code 03801 produces approximately 7,271 kWh per year.

Solar Panel ROI in 03801

Portsmouth, New Hampshire — Is solar worth it here? Here's what the data says.

2.8x ROI Score

8.9 yrs Payback Period

$1,680/yr Annual Savings

$42,000 25-Year Savings

Your savings estimate

$ /mo bill

Annual savings $1,680

Payback 8.9 yrs

25-yr savings $42,000

Solar Calculator for 03801 (Portsmouth)

Adjust values to see your personalized solar ROI estimate for Portsmouth, New Hampshire.

System Size

System Cost

Electricity Rate

$ /kWh

Solar Irradiance

4.15 kWh/m²/day

Based on NREL data for Portsmouth, NH

ROI Score 2.8x

Annual Production 7,271 kWh

Annual Savings $1,680

Payback Period 8.9 years

25-Year Savings $42,000

After 30% ITC $10,500

Solar Data for 03801 – Portsmouth, NH

Solar Irradiance 4.15 kWh/m²/day -16.3% vs national avg

vs New Hampshire Avg +0.2% State avg: 4.57 kWh/m²/day

Electricity Rate $0.231/kWh New Hampshire average rate

Annual Production 7,271 kWh 6kW system estimate

Portsmouth gets 4.15 kWh/m²/day (16.3% below national avg) and electricity at $0.231/kWh. The 8.9-year payback represents a solid return — the federal 30% ITC further reduces costs.

Solar Incentives for Portsmouth, New Hampshire

★

Federal Investment Tax Credit (ITC)

Claim 30% of your system cost as a federal tax credit. On a $15,000 system, that's $4,500 back.

★

Net Metering

Most New Hampshire utilities offer net metering — sell excess electricity back to the grid at retail rates, accelerating your payback.

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New Hampshire State Programs

Check with the New Hampshire energy office for additional rebates, tax exemptions, and low-interest solar financing programs available in Portsmouth.

03801 vs New Hampshire Average

Solar Irradiance

03801: 4.15 NH avg: 4.57

Payback Period

03801: 8.9 yrs NH avg: 8.6 yrs

Annual Savings

03801: $1,680 NH avg: $1,735

25-Year Savings

03801: $42,000 NH avg: $43,375

See the full New Hampshire solar guide for statewide data and incentives.

Nearby Zip Codes — Solar Comparison

03101 Manchester, NH 2.8x ROI 8.9 yr payback 02151 Revere, MA 3.5x ROI 7.1 yr payback 02148 Malden, MA 3.5x ROI 7.1 yr payback 02155 Medford, MA 3.5x ROI 7.1 yr payback 02128 East Boston, MA 3.5x ROI 7.1 yr payback