Solar Panel Cost in New Hampshire (2026)
Installed solar in New Hampshire runs about $3.66 per watt — roughly 42% above the national average of $2.58/W. With the federal residential tax credit (25D) gone as of 2026, payback here rests on a $0.28/kWh power price and 4.2 daily peak sun hours.
Worked example: a typical $150/month home in New Hampshire
A $150/month electric bill in New Hampshire works out to about 6,429 kWh a year. Sizing a cash-purchase system to cover 100% of that:
System size
5.6 kW
Panels
14
Annual offset
107%
Gross cost
$22,996
Federal credit (25D)
$0
Expired 12/31/2025 — $0
State incentive
$0
Net cost
$22,996
Payback
10.4 yr
25-year savings
$46,954
Last updated June 30, 2026
New Hampshire solar numbers
- Installed price
- $3.66 / watt
- Electricity price
- $0.28 / kWh
- Peak sun hours
- 4.2 hrs/day
- State incentive
- 0%
- Net-metering value
- 100% of retail
Local context: High install costs and pricey power roughly cancel out; net metering keeps solar viable.
Estimate your own New Hampshire system
Adjust the bill, ownership, and battery options below — it's pre-set to New Hampshire's pricing and sun hours.
Estimated system cost
$26,375–$34,257
7.6 kW19 panels
Low $26kMost likely ~$30,316High $34k
Federal tax credit
— expired Dec 2025, we won't pretend otherwise
$0
State & utility incentives
$0
Est. annual savings
$2,610
Payback period
~10.1 yr
Net cost
$26k–$34k
25-year net savings
+$64,616
iA ballpark estimate for planning — not a final quote.
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