New Hampshire Solar: Who Sells Your Power Decides the Credit

Written by Dean Mahmoud, CEO, and checked by Trevor Guilday, founder.Prices from the September 2026 Cost Index. Credits at rates in effect October 2026. Updated October 19, 2026.

A typical New Hampshire home system is 9.87 kW and costs about $28,820 in cash at $2.92 per watt, with no sales tax. At Eversource, the largest utility, it pays for itself in about 9.8 years on default supply, simple payback before incentives. At Liberty it takes about 10.6 years on default supply, and about 11.7 years if a community power program sells your power instead.

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New Hampshire’s supplier choice: who pays for the solar power you send out?

Your utility always delivers the power. You can buy it from the utility (default supply), from a community power program run by your town, or from a competitive supplier. At Eversource, Liberty and Unitil, that choice decides most of your export credit.

Default supply 23.04¢ at Liberty

  1. Each month, power you send out beyond what you used becomes a dollar credit.
  2. The utility credits all of the supply and transmission charges, plus 25% of distribution.
  3. Unused credits roll forward to later bills.

Community power or a supplier 7.20¢ at Liberty

  1. The utility credits only transmission and 25% of distribution.
  2. Any payment for the supply part comes from the company selling you power, on its own terms.
  3. The Community Power Coalition of New Hampshire pays its net metered homes nothing for it.
Credit per kWh sent out, by utility and supplier, at rates in effect October 2026
Utility
On default supply
On another supplier
Built from
Eversource
19.96¢
5.95¢
14.009¢ energy, 4.265¢ transmission, 25% of 6.727¢ distribution
Liberty
23.04¢
7.20¢
15.835¢ energy, 5.548¢ transmission, 25% of 6.611¢ distribution
Unitil
20.63¢
6.28¢
14.348¢ energy, 4.662¢ transmission, 25% of 6.460¢ distribution
NH Electric Co-op
14.662¢
about 4.1¢
The co-op’s own rate; its 10.546¢ Co-op Power part is not paid on another supplier

Swipe the table sideways to see every column.

If community power enrolled you by mistake

Community power programs enroll homes in their town automatically. Homes marked as net metered are left out, but mistakes happen. Since August 18, 2026, state law lets a solar customer enrolled by mistake return to the utility’s default supply and get up to 4 months of missed credits.

Read the supply line on your bill before your system is switched on, and again after. If it names a company other than your utility, ask that company in writing what it pays for the solar power you send out.

The Community Power Coalition of New Hampshire recommends that its net metered customers stay on the utility’s default supply.

New Hampshire paybacks by utility: 9.8 years at Eversource

The same 9.87 kW system on four bills. Eversource, the co-op and Liberty are our per-utility figures. In the two Liberty rows only the power supplier changes.

Typical 9.87 kW system, $28,820 cash, 13,019 kWh a year
Utility, supply and export credit
Year-one savings
After upkeep
Simple payback before incentives
Eversource, default supply, leftover power credited at 19.96¢
$2,940
No upkeep counted
9.8 years
NH Electric Co-op, 14.662¢ per kWh sent out
$2,302
No upkeep counted
12.5 years (11.8 to 13.2)
Liberty, default supply, leftover power credited at 23.04¢
$2,725
No upkeep counted
10.6 years
Liberty, community power, leftover power credited at 7.20¢
$2,454
No upkeep counted
11.7 years

Swipe the table sideways to see every column.

How we calculated this
  • Output: 9.87 kW × 1,319 kWh per kW = 13,019 kWh a year.
  • Eversource: power used at home or netted within the month is worth 22.98¢ (Eversource’s 26.17¢ average price, less its $19.81 monthly charge). Eversource homes reported 13.2% of their solar power left over at month end, credited at 19.956¢ on October 1, 2026 default-supply rates. Savings: $2,940 a year. $28,820 ÷ $2,940 = 9.8 years.
  • Co-op: power used at home is worth 22.22¢ (the co-op’s 26.94¢ average price, less its $29.00 member charge), and each kWh sent out earns 14.662¢. At a modeled 40% used at home, savings are $2,302 a year, so 12.5 years. The share is modeled because too few co-op solar homes are in the reported data: at 55% used at home it is 11.8 years, at 28% it is 13.2 years.
  • Average prices are EIA’s 12 months to August 2026. The leftover share is what Eversource reported to the EIA, not measured at your meter. Our per-utility figures count no upkeep and no price rises.
  • Liberty: power used at home or netted within the month is worth 20.615¢ (Liberty’s 22.867¢ average price for 2024, less its $14.74 monthly charge). Its 12-month EIA figure to August 2026 did not pass our coverage check, so this price is older than the October 2026 credits. We use the 13.17% statewide leftover share: 11,304 kWh used at home = about $2,330.
  • Sent out: 1,715 kWh × 23.04¢ = about $395 on default supply, or × 7.20¢ = about $123 on community power. Savings: $2,725 or $2,454 a year. $28,820 ÷ $2,725 = 10.6 years, $28,820 ÷ $2,454 = 11.7 years.
  • Payback: $28,820 ÷ savings. No financing, rate changes or panel aging.
  • Power you send out first cancels power you take later in the same month, so the 7.20¢ case is the cautious end.
  • Unitil is not yet in our per-utility figures. Ask your installer to run the numbers on your own utility’s rates.

Run your own New Hampshire numbers

Eversource, Liberty, Unitil or the New Hampshire Electric Co-op?

Three utilities follow one state formula, each on its own rates. The electric co-op sets its own solar rate. The big number is the credit on default supply.

Eversource

19.96¢ per kWh sent out

Rate R homes pay 25.76¢ per kWh plus $19.81 a month, at rates as of October 1, 2026.

Also: a home battery incentive of up to $3,000.

Liberty

23.04¢ per kWh sent out

Rate D homes pay 28.74¢ per kWh, from August 1, 2026. The application to connect costs $200 for systems up to 25 kW.

Next: the supply rate runs to January 31, 2027, so the credit moves then.

Unitil

20.63¢ per kWh sent out

Built from 14.348¢ energy, 4.662¢ transmission and 25% of 6.460¢ distribution, at rates as of October 1, 2026.

Next: ask Unitil for its connection fee and your current rates.

What the 2040 date protects, and turning credits into cash
  • A system that gets its net metering allocation now is billed under this formula until December 31, 2040. The formula is the one for systems up to 100 kW, which covers any home system; net metering itself is open to systems up to 1 megawatt.
  • The Public Utilities Commission kept the formula and the end date in an order of November 18, 2024. Docket DE 22-060 is still open and includes whether to credit exports at a lower supply rate. No order had changed the credit when we checked.
  • The date protects the formula, not the cents. When supply, transmission or distribution rates change, the credit moves with them.
  • A credit balance above $100 at the end of March can be paid out on request. State law also allows a payment every three months for a balance above $25.

If New Hampshire Electric Cooperative sends your bill

The co-op measures power in and power out separately and does not net them over the month. Solar power you use as it is made never reaches the meter, so it saves the full rate.

14.662¢Each kWh sent out

The co-op’s export credit for homes, rates from August 1, 2026.

24.713¢Each kWh bought

Plus a member charge of $29.00 a month.

12.180¢Above 2,000 kWh sent out

The rate sheet does not say over what period. Ask the co-op.

$50Check on request

After the March, June or September bill, for a credit of $50 or more.

The co-op changes its rates several times a year, and it wants its application filed before any equipment is bought. Check its current Schedule of Rates before you rely on a quote.

What a 9.87 kW New Hampshire system costs, with no sales tax

At the September 2026 benchmark of $2.92 per watt. These are modeled cash prices, not quotes we collected.

Cash price and yearly output by system size
SizePower made a yearCash price
5 kW6,595 kWh$14,600
8 kW10,552 kWh$23,360
9.87 kW (typical)13,019 kWh$28,820
12 kW15,828 kWh$35,040
How we got these numbers
  • 9.87 kW is the Cost Index typical size, calibrated to the 10.0 kW median New Hampshire homeowners installed in 2025 (Berkeley Lab, 339 systems). Size yours to your own use.
  • Output uses the Cost Index figure of 1,319 kWh per kW a year. Shade and snow cover lower it.
  • $2.92 per watt is $0.03 above the $2.89 US average. A system you own gets no federal tax credit after December 31, 2025.

Full New Hampshire price guide

New Hampshire’s town tax vote and Eversource’s battery check

Nothing lowers the panel price here: no rebate, no state or federal tax credit, and no sales tax to waive. What exists is set by your town or tied to a battery.

0%Sales tax

New Hampshire has no general sales tax. There is no form to file.

Town voteProperty tax exemption

Only where your town adopted it (RSA 72:62). Apply to the assessor by April 15 on Form PA-29.

$3,000Eversource battery incentive

$230 per kWh of battery, once, for 3 years in its demand response program.

0.00% APRBattery loan

$1,000 to $10,000 for Eversource customers with an approved battery.

How the town exemption and the battery incentive work
  • Each town’s vote decides whether solar is exempt and how much. Manchester adopted the exemption on February 3, 2015, at 100% of the equipment’s assessed value. In a town without it, a solar system can be added to your assessment.
  • Home batteries have a separate local option, RSA 72:85. Ask your assessor whether your town adopted it.
  • The Eversource battery must be an approved Enphase or FranklinWH model bought after October 1, 2022. Eversource draws on it about 40 times a year, June through September, between 3 and 8 p.m., and never below 20%. A check arrives within four weeks of acceptance. Funds are limited.
  • The battery loan runs through the National Energy Improvement Fund, first come, first served. Liberty’s own battery program is closed to new applicants.
What New Hampshire does not offer in 2026
  • A state rebate: permanently closed. Senate Bill 303 of 2024 repealed the program.
  • A state tax credit: New Hampshire does not tax wages, and its tax on interest and dividends ended on January 1, 2025, so there is no income tax for a credit to reduce.
  • The 30% federal credit: not for a system you own placed in service after December 31, 2025.
  • Plug-in solar in 2026: the law allowing one plug-in unit of up to 1,200 watts per home starts on January 1, 2027. It earns no credit for power sent out.

New Hampshire incentives guideWhat $0-down solar means in New Hampshire

Three installers serving New Hampshire homes

A to Z, not ranked. Facts from their own sites and the New Hampshire Electricians Board registry, read October 9 to 14, 2026.

Granite State Solar

Office
Bow, NH
NH license
Electrical Corporation 0366C, active through May 31, 2027
Warranty
12-year workmanship, including roof penetrations
More facts
Founded
2008 (company says)
Ways to pay
Lists one: an EastRise Credit Union loan; ask about cash
Granite State Solar profile

ReVision Energy

Office
Brentwood and Enfield, NH (headquarters South Portland, ME)
NH license
Electrical Corporation 0243C showed as expired (May 31, 2025) on October 13, 2026; ask for a current one
Warranty
10-year workmanship in New Hampshire, including roof penetrations
More facts
Since
2003; employee-owned since 2017 (company says)
Ways to pay
Purchase, loan, lease, prepaid lease, community solar share
ReVision Energy profile

Venture Home (Venture Solar)

Buys leads from EcoGen
Office
No New Hampshire office listed; its New Hampshire page gives 2 Kane Industrial Dr, Hudson, MA (headquarters Southington, CT)
NH license
Electrical Corporation 0506C, active through May 31, 2027
Warranty
Length and scope set in your service agreement; its sales page promises 25 years of coverage for the system, labor and workmanship
More facts
Equipment
Enphase and Tesla named
Ways to pay
Purchase, loan, lease or PPA, prepaid plan
Venture Home profile

Venture Home buys homeowner leads from EcoGen America. That does not change its facts or its place in this A to Z list. How we make money.

Compare New Hampshire solar companies in detail

Six things a New Hampshire solar quote should name

  • Your power supplierDefault supply, community power or a competitive supplier, and what that seller pays for the supply part of power you send out.
  • Your utility’s creditThe cents per kWh used for power sent out: 19.96¢ at Eversource, 23.04¢ at Liberty, 20.63¢ at Unitil or 14.662¢ at the co-op on today’s default rates.
  • Your home-use shareHow much of the output the quote expects you to use as it is made, and why.
  • Cash and financed pricesBoth totals side by side, any dealer fee shown, and no 30% federal credit on a system you own.
  • Your town’s tax ruleWhether your town adopted the solar exemption, and who files Form PA-29 by April 15.
  • An active licenseThe company’s New Hampshire electrical license, which you can look up in the state’s license verification search.

Comparing New Hampshire quotes?

Ask each installer to name your supplier and write down the export credit behind its savings estimate.

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New Hampshire Solar FAQs

Does joining community power change my solar credit?

Yes, at Eversource, Liberty and Unitil. Your utility then credits only transmission and 25% of distribution: 7.20¢ per kWh at Liberty instead of 23.04¢. The Community Power Coalition of New Hampshire pays its net metered customers nothing for the supply part and recommends they stay on default supply.

Is New Hampshire net metering ending?

Not for a system connected now. The credit formula holds until December 31, 2040. The cents per kWh still move when rates change, and the Public Utilities Commission has an open case, DE 22-060, on whether to credit exports at a lower supply rate.

Does New Hampshire have a solar rebate or tax credit?

No. The state rebate is permanently closed, New Hampshire has no income tax on wages for a credit to reduce, and the federal credit ended for systems you own placed in service after December 31, 2025.

Will solar panels raise my property taxes?

They can. Each town decides whether to exempt solar and how much. Where it does, apply to your assessor by April 15 on Form PA-29. Where it does not, the system can be added to your assessment.

I am a co-op member. Do the same rules apply?

No. New Hampshire Electric Cooperative credits 14.662¢ for each kWh you send out and does not net your use over the month. On another supplier, its 10.546¢ Co-op Power part is not paid, which leaves about 4.1¢.

Where this New Hampshire guide’s figures come from

Sources (23 documents, each with the date we read it)
  1. EcoGen Solar Cost Index, September 2026: New Hampshire$2.92 per watt, 9.87 kW Cost Index typical size (calibrated to the Berkeley Lab 2025 median of 10.0 kW, 339 systems), 1,319 kWh per kW, battery estimate.
  2. Liberty Utilities: Electricity Delivery Service Tariff NHPUC No. 23Net metering formula, 2040 end date, Rate D charges, $200 application fee, $100 payout. Read October 1, 2026.
  3. Eversource: New Hampshire Summary of Electric Rates, last updated October 1, 2026Rate R energy, transmission, distribution and customer charges. Read October 14, 2026.
  4. Unitil Energy Systems: Schedule QF, net energy meteringCredit rule; rate parts from EcoGen’s October 6, 2026 tariff review of the NH PUC rate table.
  5. Community Power Coalition of New Hampshire: Net Energy Metering FAQNo supply credit for net metered customers; default supply recommended. Read October 6, 2026.
  6. New Hampshire General Court: RSA 362-A:9, net energy meteringQuarterly payouts and the return from community power (2026 ch. 179). Read September 29, 2026.
  7. New Hampshire Electric Cooperative: Schedule of Rates effective August 1, 2026Export credit, delivered rate, member charge, 2,000 kWh tier. Read October 1, 2026.
  8. New Hampshire Electric Cooperative: Terms and Conditions$50 credit check. Read September 29, 2026.
  9. New Hampshire Electric Cooperative: Schedule of Fees, effective January 1, 2026$220 application to connect up to 25 kW AC. Read October 19, 2026.
  10. New Hampshire Electric Cooperative: Solar and net meteringThe co-op’s program and application timing. Read September 30, 2026.
  11. New Hampshire General Court: RSA 72:62, solar property tax exemptionLocal option set by each town. Read September 29, 2026.
  12. City of Manchester Assessors: Solar ExemptionAdopted February 3, 2015, at 100%. Read September 30, 2026.
  13. City of Nashua Assessing: Solar Energy Systems ExemptionApril 15 application deadline, an inspection, and the full value of the system exempt. Read October 16, 2026.
  14. Department of Revenue Administration: Form PA-29, as posted by the Town of New LondonExemption form and the battery option, RSA 72:85. Read October 1, 2026.
  15. Department of Revenue Administration: Does New Hampshire have a sales tax?No general sales tax. Read September 30, 2026.
  16. Department of Revenue Administration: Interest and Dividends Tax repealRepealed January 1, 2025. Read September 30, 2026.
  17. Eversource: New Hampshire Clean Energy Fund home battery incentives$230 per kWh up to $3,000, event terms. Read September 29, 2026.
  18. National Energy Improvement Fund: New Hampshire Residential Clean Energy Loan0.00% APR, $1,000 to $10,000. Read September 30, 2026.
  19. Liberty Utilities: Battery Storage ProgramClosed to new applicants. Read September 30, 2026.
  20. New Hampshire General Court: 2026 Laws chapter 262, plug-in solarStarts January 1, 2027; up to 1,200 watts. Read September 29, 2026.
  21. New Hampshire Department of Energy: residential solar rebatePermanently closed after Senate Bill 303 of 2024. Read September 30, 2026.
  22. IRS: Residential Clean Energy CreditNo credit for property placed in service after December 31, 2025. Read September 30, 2026.
  23. Office of Professional Licensure and Certification: license verificationInstaller electrical licenses and status. Read October 13, 2026.
  24. 2025 Annual Technology Baseline: residential PVOwner costs of $29.83 per kW a year, rounded to $30 for upkeep. Berkeley Lab self-consumption research (2022) informs the 40% home-use default. Eversource and co-op paybacks: our per-utility figures of October 30, 2026. Liberty payback: the same method, November 4, 2026, on EIA-861 2024 annual data.
Dean Mahmoud
Written by

Dean Mahmoud

CEO of EcoGen America. Since 2021 he has connected homeowners with residential solar installers in all 50 states.

About Dean
Trevor Guilday
Checked by

Trevor Guilday

Founder of EcoGen America. He has worked in residential solar since 2016 and maintains the EcoGen Solar Cost Index.

About Trevor

Editorial standardsCost Index methodology