Good value for solar

Solar panel cost in Nashua, NH (2026)

A typical Nashua home needs about a 6.5 kW system (~16 panels), costing roughly $20,150 upfront or $19,150 after state incentives. The 30% federal credit ended for purchases on Dec 31, 2025 (a lease/PPA can still pass it through). At 3.95 peak sun hours and New Hampshire's 28.3¢/kWh rate, it pays back in about 10.5 years and saves an estimated $42,753 over 25 years.

System size
6.5 kW
Net cost
$19,150
Payback
10.5 yrs
25-yr savings
$42,753

Estimate your savings in Nashua

Preset to Nashua's local sunlight. Adjust your monthly bill for a personalized estimate.

$175
Recommended system
6.4 kW
Est. net cost (cash)
$18,840
Payback period
10.4 yrs
Est. monthly savings
$151
25-year net savings
$42,587
Bill offset
99%
Good value in NashuaBased on a 6.4 kW system at $3/W, 3.95 peak sun hours, and a 28.3¢/kWh rate.

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Annual electricity use7,420 kWh
Annual solar production7,382 kWh
Gross system cost$19,840
Federal tax credit (purchase)Ended Dec 2025
State / local incentives– $1,000
30% via lease/PPA instead~$5,952 value
CO₂ avoided per year2.6 tons (~43 trees)

Estimates only — not a quote or financial advice. See our methodology.

What makes Nashua different

Nashua (population ~87,970) gets 3.95 peak sun hours per day — that's 6% less sunny than the New Hampshire average of 4.2. Slightly less local sunlight means panels produce a touch less than the state average, so sizing and orientation matter. Electricity rates, net metering, and incentives are set at the New Hampshire level: residents pay about 28.3¢/kWh, and net metering + $1,000 residential rebate.

City peak sun hours3.95 hrs/day
Recommended system size6.5 kW (~16 panels)
Installed price per watt$3/W
Gross system cost$20,150
Federal tax credit (purchase)Ended Dec 31, 2025
State / local incentives– $1,000
Net cash cost$19,150
30% credit via lease/PPA~$6,045 value
Annual energy produced7,497 kWh
Estimated year-1 savings$1,821
Payback period10.5 years
25-year net savings$42,753
CO₂ avoided per year2.6 tons (~43 trees)

Compare with the New Hampshire state average (6.1 kW, $17,910 net, 9.8-yr payback). Modeled estimates, June 2026 — not a quote. See methodology.

Compare real solar quotes in Nashua, NH

See actual prices from vetted local installers — including lease and PPA options that still capture the 30% credit in 2026. Free, no obligation.

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Solar in Nashua: FAQ

How much do solar panels cost in Nashua?
A typical 6.5 kW home system in Nashua costs about $20,150 before incentives. After New Hampshire incentives, the net cash cost is roughly $19,150. The 30% federal tax credit ended for purchases on Dec 31, 2025, though a lease or PPA can still pass through a 30% credit (~$6,045).
Is solar worth it in Nashua?
With 3.95 peak sun hours a day and New Hampshire's 28.3¢/kWh electricity rate, a system in Nashua pays back in about 10.5 years and returns an estimated $42,753 over 25 years — a good-value result.
How many solar panels do homes in Nashua need?
To offset typical usage, a Nashua home needs roughly a 6.5 kW system — about 16 modern 410-watt panels. Your exact count depends on roof space, shading, and your actual electricity use.
What rebates and tax credits apply in Nashua?
The 30% federal Residential Clean Energy Credit ended for purchases on Dec 31, 2025. A lease or PPA can still capture a 30% credit (~$6,045 on this system) passed through by the provider. Statewide, Net metering + $1,000 residential rebate.

Other cities in New Hampshire

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