*New Hampshire payback, net-metering, and federal-credit figures are current as of July 2026, per the U.S. Energy Information Administration, New Hampshire PUC Order 27,074, and the IRS.
When Solar Is Worth It In New Hampshire
At 27.24¢ per kilowatt-hour, New Hampshire’s residential electricity rate is among the ten highest in the nation (44.7% above the national average), so every kilowatt-hour a system offsets is worth more here than in most states.
Solar panels are worth it in New Hampshire if:
- You own the home and plan to stay past year 10. Cumulative savings pass the system’s cost between year 9 and year 11, so the longer you stay, the more the system returns to you.
- Your utility follows the state net-metering tariff. Eversource, Liberty, and Unitil credit exported power at 80% to 85% of the retail rate, the terms that drive the fastest payback.
- Your roof is structurally sound and gets full sun. A roof with 15 or more years of life left and little shading captures the full return without a mid-life panel removal.
The average New Hampshire home spends $169 a month on power, over $2,000 a year, and a system sized to that usage erases most of that bill for as long as the panels are warranted to last. The case for solar panels is weaker for low-usage co-op members, homeowners planning to move within a few years, or anyone without a roof of their own (i.e. renters).
Find out how much you could save in New Hampshire!
How Long Until Solar Pays for Itself in New Hampshire?
In New Hampshire, a typical $17,064 system pays for itself in 9.5 years on Liberty Utilities and up to 12.3 years on the New Hampshire Electric Co-op.
The payback period depends on two main factors:
- How high your utility’s rate is,
- and how much your utility pays for the power you export.
Solar Payback Period by Utility
The utility serving your address changes your payback more than any other factor. The table below shows first-year bill savings, simple payback, and 25-year net savings on a typical 5.63-kilowatt system, by utility.
Utility | Simple Payback | First-Year Savings | 25-Year Net Savings | What Drives The Return? |
|---|---|---|---|---|
Liberty Utilities | 9.5 Years | $1,795 | $45,200 | Highest retail rate in the state |
Unitil | 10.5 Years | $1,625 | $39,100 | High rate, strong export credit |
Eversource | 11 Years | $1,555 | $36,900 | Largest utility, strong export credit |
New Hampshire Electric Co-op | 12.3 Years | $1,390 | $31,200 | 62% export credit, $29 monthly charge |
*Figures are modeled on a 5.63-kilowatt system at the state’s $17,064 installed price. Your own payback will vary based on usage, roof, shading, and future rate changes.
Liberty customers reach payback fastest because Liberty carries the state’s highest retail rate, so each offset kilowatt-hour saves the most. The co-op sits at the other end. It credits exports at just 62% of retail and charges a $29 monthly fee, the highest fixed charge in the state, which stretches its payback nearly three years past Liberty’s. Confirm which utility serves your address before you model any savings, because it drives most of your payback.
Payback is only half of the picture. Panels are warranted for 25 years and keep producing for years afterward, so a homeowner who breaks even at year 10 collects a decade or more of nearly free power after that. That long tail is where most of the 25-year net savings is earned, and the lifetime total ends up far larger than the sticker price.
Why Solar Pays Off In New Hampshire Even Without Big Incentives
New Hampshire solar pays for itself without a single upfront dollar of help, which is rare in 2026. The federal credit expired at the end of 2025, and the state rebate is, in the New Hampshire Department of Energy’s words, “permanently closed.”
The return comes from the export credit instead: the state pays most of the retail rate for the power you export, so it barely matters whether you use your solar power as you make it or send the surplus to the grid. At the investor-owned utilities, exported power earns 80% to 85% of retail, high enough that a system recovers its cost inside 25 years even if most of what it makes flows back to the grid. That also means you do not need a battery or a midday-heavy schedule to make the numbers work.
New Hampshire’s electricity prices have also climbed 3.14% a year over the past five years, and because the net-metering credit is set as a share of that rate, the value of each offset kilowatt-hour grows on its own over the system’s life. A fixed rebate would lose ground to inflation, while a rate-linked credit gains value as rates climb.
The return holds up even if rates rise more slowly than they have. At the state’s recent pace, a Liberty system nets $45,200 over 25 years; if rate growth ran a point higher it would clear $53,000, and a point lower still returns more than $37,000. The case does not depend on an optimistic forecast.
Is Solar a Good Long-Term Investment?
Measured as an investment, a New Hampshire solar system is a strong one: it turns the system’s price into $31,000 to $45,000 of net savings over 25 years. The payback year tells you when you break even; the 25-year net is the fuller measure, because a paid-off system keeps producing for years afterward. Its return also rises as electricity prices climb, unlike a fixed-rate account, since the value of each offset kilowatt-hour tracks the retail rate.
A Liberty system that costs $17,064 and saves $1,795 in its first year is earning more than 10% on that money in year one, and that yield grows as rates rise. Few places a homeowner can safely put $17,000 return the whole sum inside a decade and keep paying for 15 years after.
Is It Worth Going Solar Now or Should I Wait?
Now, for anyone ready to commit. Waiting does not improve the deal: the federal credit is gone and is not scheduled to return, the state rebate is closed, and New Hampshire’s electricity rates have climbed 3.14% a year over the past five years, so a later start mainly delays the savings.
Placing a system in service now also locks in the current net-metering terms through 2040, a guarantee a later system may not get if the tariff changes.
Does Financing Change Whether Solar Is Worth It?
No. Every way of paying for a New Hampshire system still pays off; what changes is how much of the return you keep.
Cash gives the strongest lifetime value, because you own the system, keep the full net-metering credit, and add no financing cost.
A home-equity loan or HELOC comes closest to cash, since it avoids the dealer fee built into many solar loans while leaving you the owner.
A zero-down solar loan still pays off against New Hampshire’s rates, but the dealer fee folded into the balance stretches the payback, so confirm the monthly payment beats your current bill before signing.
A lease or power-purchase agreement is the one way to reach a federal credit in 2026, because the company that owns the system claims the commercial 48E credit; you give up ownership and part of the net-metering value in exchange for no upfront cost, which fits a homeowner who plans to move or cannot use the full credit.
How those offers are structured, and where they go wrong, is the subject of $0-down solar in New Hampshire.
What Does a Solar System Cost?
A typical New Hampshire system runs $17,064 before financing, or $3.03 a watt for a 5.63-kilowatt array, and in 2026 that gross price is also the net price. Larger all-electric homes pay more, and adding a battery adds $13,500 or more to the project.
The full breakdown by system size, and what raises or lowers a quote, sits in what solar costs in New Hampshire.
How Net Metering Affects Payback in New Hampshire
Net metering decides what your exported power is worth, and in New Hampshire that credit runs 80% to 85% of the retail rate at the investor-owned utilities, the biggest single factor in your payback. The state credits surplus power at 100% of the energy and transmission charges plus 25% of distribution, and Order 27,074 holds those terms through 2040, while other states trim their export rates.
New Hampshire Electric Cooperative is the exception, running its own net-metering program outside the state tariff. Its export credit runs 62% of retail, below the 80% to 85% the investor-owned utilities pay, which leaves its members waiting longest to break even. How the credit is calculated, how the property tax exemption works, and which smaller programs apply are covered in full in New Hampshire’s solar incentives.
When Is Solar Not Worth It in New Hampshire?
Solar pays for most New Hampshire owners, but there are some scenarios when solar is probably not worth it.
- A low-usage co-op account. A New Hampshire Electric Co-op member who uses little power feels the co-op’s 62% export credit and $29 monthly charge more than anyone, and sees the state’s longest payback, longer still for a light user. Solar can still pay on a sound, unshaded roof, but this is the household where the return runs slowest.
- A short stay in the home. Cumulative savings first pass the system’s cost between year 9 and year 11. A homeowner who expects to move sooner may not recover the full cost as an owner, though a lease or power-purchase agreement that transfers to the next owner can be the better fit.
- An aging or heavily shaded roof. Panels on a roof with fewer than 12 to 15 years left mean paying $1,500 to $5,000 to remove and reset them at re-roof time. A roof that loses more than a quarter of its sun to trees or dormers stretches payback past the point where the system pays for itself. Re-roof first, or clear the shade, then go solar.
- No roof of your own. Renters and most condo owners cannot host a rooftop system. Group net metering and the state’s income-qualified community solar program are the realistic options for a solar credit without a roof.
How to Tell If Solar Is Worth It for Your Home
You can settle most of the decision yourself before an installer ever visits. Four things determine whether solar pays for you, and you can check all four yourself.
- Your utility. Confirm whether Eversource, Liberty, Unitil, or the co-op serves your address; it sets your export credit and most of your payback.
- Your roof. South, east, or west exposure with little shade and 15 or more years of life left is ideal. A roof near replacement or heavy shade changes the payback.
- How long you will stay. Past the year-9-to-11 break-even, ownership wins. If a move is likely sooner, weigh a lease or PPA that transfers to the next owner.
- Your usage. A higher electric bill means more to offset and a faster payback; a low bill lengthens it.
If your answers point the same way and you are on an investor-owned utility, solar is worth it here on the numbers. A local installer that knows your town’s permitting and your utility’s process can confirm the estimate, and top New Hampshire solar installers is a place to start comparing firms.
See Whether Solar Is Worth It for Your New Hampshire Home
Every roof, utility, and usage pattern changes the payback. Enter your ZIP code for a payback estimate built on your town’s rates, your utility’s export credit, and your own electric bill.
Find out how much you could save in New Hampshire!
Frequently Asked Questions
Yes, solar panels are worth it for most homeowners in New Hampshire. A typical system pays for itself in 9.5 to 12.3 years and returns $31,000 to $45,000 over 25 years, driven by the state’s high electricity rates and a net-metering credit locked through 2040. The main exceptions are low-usage co-op members and homeowners who plan to move within a few years.
Between 9.5 years on Liberty Utilities and 12.3 years on the New Hampshire Electric Co-op, on a typical $17,064 system. The gap reflects each utility’s rate and export credit. Across all four utilities, cumulative savings pass the system’s cost between year 9 and year 11.
Yes. The Section 25D credit ended for owned systems placed in service after December 31, 2025, so a 2026 buyer pays the full $17,064. New Hampshire’s high rates and locked net-metering credit still carry the system to payback inside its warranted life, so solar pays here without a subsidy.
Liberty Utilities, at 9.5 years, because it carries the highest retail rate and credits exports at 80% of it. Unitil follows at 10.5 years and Eversource at 11.0. The New Hampshire Electric Co-op has the slowest payback, at 12.3 years, because of its 62% export credit and higher fixed charge.
Yes, and New Hampshire protects that gain. An owned system adds to resale value, and a local property tax exemption under RSA 72:62, where your town has adopted it, keeps that added value off your assessment so it does not raise your tax bill. Leased systems do not carry the same resale benefit.
In New Hampshire a battery is mainly for backup. The export credit pays most of the retail rate, so storing power to use later saves little on the bill, and a battery here is worth most for riding out outages. It adds $13,500 or more to the project.
*Methodology: Payback and savings figures in this guide use the EcoGen Solar Payback Methodology, a standardized model built on New Hampshire’s net-metering tariff (PUC Order 27,074), verified 2026 utility rates, and NREL PVWatts production data. It assumes a host-owned 5.63-kilowatt system at the state’s $17,064 installed price, 3.14% annual rate escalation, 0.5% annual panel degradation, and a 25-year horizon. System-size, production, and cost figures derive from the EcoGen State Profile for New Hampshire. Real returns vary by roof, usage, shading, and future rate changes.
References & Research Sources: EcoGen America reviewed federal electricity price data, New Hampshire net metering orders, federal tax guidance, utility net metering materials, and solar production modeling tools for this article. Sources were accessed July 13, 2026, unless another publication, release, effective, or update date is listed below.
- U.S. Energy Information Administration (EIA). Electric Power Monthly, Table 5.6.A: Average Price of Electricity to Ultimate Customers by End-Use Sector, by State. Federal electricity price data table, including residential average retail electricity prices. Data for April 2026; released June 25, 2026. Accessed July 13, 2026.
- New Hampshire Public Utilities Commission (NHPUC). Order on Net Metering. Docket DE 22-060; Order No. 27,074. Issued November 18, 2024. Accessed July 13, 2026.
- Internal Revenue Service (IRS). Working Families Tax Cuts. Federal tax guidance resource related to One Big Beautiful Bill provisions, including clean energy credit changes. Page last reviewed or updated July 6, 2026. Accessed July 13, 2026.
- New Hampshire Electric Cooperative (NHEC). Solar & Net Metering. Utility net metering and solar interconnection resource for NHEC members. Accessed July 13, 2026.
- National Renewable Energy Laboratory (NREL). PVWatts Calculator. Solar photovoltaic energy production modeling tool. Accessed July 13, 2026.
