Solar by state
Solar in New Hampshire, by the numbers
Utilities and their rates, adoption, ten years of growth, batteries, ownership, state rules and installer licensing in New Hampshire, from federal 2024 data.
New Hampshire in brief
3.45% of New Hampshire homes had rooftop solar in 2024, the 14th-highest of 51 (3.55% nationally). Power cost 23.40¢/kWh, above the national 16.48¢, and the average system was 8.06 kW. Public Service Company of NH serves 71.0% of homes.
Where does New Hampshire stand out?
The four measures, beyond price and adoption, on which New Hampshire sits furthest from the middle of the ranking.
New Hampshire solar in numbers, 2024
Every New Hampshire figure next to the national one, with its place in the ranking (highest first, out of the jurisdictions reporting it).
| Measure | New Hampshire | United States | Rank |
|---|---|---|---|
| Homes with a metered rooftop system | 3.45% | 3.55% | 14th-highest of 51 |
| Rooftop systems counted | 22,503 | 5,077,543 | 24th-lowest of 51 |
| Average system size | 8.06 kW | 6.74 kW | 13th-highest of 51 |
| Residential price | 23.40¢/kWh | 16.48¢/kWh | 9th-highest of 51 |
| Average monthly bill | $144.87 | $142.26 | 18th-highest of 51 |
| Use per home | 7,428 kWh/yr | 10,359 kWh/yr | 10th-lowest of 51 |
| Systems with a battery | 3.19% | 5.86% | 14th-highest of 47 |
| Leased or on a PPA | 25.7% | 29.1% | 14th-highest of 38 |
| Growth in systems, five years | 20.8% a year | — | 18th-lowest of 51 |
| Minutes without power per customer | 736 | 297 (median state) | 10th-highest of 51 |
| Homes on a time-varying rate | 0.13% | 11.1% | 6th-lowest of 51 |
| Installed rooftop capacity | 181.3 MW | 34,226 MW | — |
Source: US EIA, Form EIA-861, 2024 final release, retrieved 2 September 2026. The New Hampshire ratios and ranks are HyreSolar calculations from EIA inputs.
Which utility serves New Hampshire, and what does it charge?
The 4 largest utilities selling to New Hampshire homes, by residential customers, with the price full-service customers paid and how many run net-metered solar.
| Utility | Type | Homes served | Price per kWh | Use per home, monthly | Net-metered systems |
|---|---|---|---|---|---|
| Public Service Company of NH | Investor-owned; wires, 61% on its own supply | 459,907 (71.0%) | 22.65¢ | 618 kWh | 16,580 (3.6%) |
| New Hampshire Electric Co-op | Co-op; wires, 98% on its own supply | 74,144 (11.5%) | 23.83¢ | 578 kWh | 1,906 (2.6%) |
| Unitil Energy Systems | Investor-owned; wires, 58% on its own supply | 68,602 (10.6%) | 23.33¢ | 602 kWh | 2,365 (3.5%) |
| Liberty Utilities (Granite State Electri | Investor-owned; wires, 62% on its own supply | 39,667 (6.1%) | 22.87¢ | 640 kWh | 1,652 (4.2%) |
Source: US EIA, Form EIA-861 2024, Sales to Ultimate Customers and Net Metering, utility level, retrieved 5 October 2026. Shares are of 647,425 New Hampshire residential accounts. Each New Hampshire price is residential revenue divided by sales for full-service customers (HyreSolar calculation); a wires company’s price is its default-service price.
What do the New Hampshire utility figures mean for a solar quote?
EIA-861 lists 4 utilities serving homes in New Hampshire in 2024, across 647,425 residential accounts. The three largest, Public Service Company of NH, New Hampshire Electric Co-op and Unitil Energy Systems, served 93.1% of those homes. By ownership: investor-owned utilities 87.8% and electric cooperatives 11.5%.
229,223 New Hampshire homes (35.4%) bought their energy from 14 competitive suppliers, 104,562 of them through community choice aggregation, while the local utility kept delivering it. On a supplier, the energy price on your bill is the supplier’s, so price a solar quote against your own bill rather than the utility prices in the table.
Public Service Company of NH, the largest, served 459,907 New Hampshire homes (71.0%). Its full-service residential customers paid 22.65¢ per kWh, below the New Hampshire average of 23.40¢, and used 618 kWh a month on average. 16,580 of its customers ran net-metered rooftop solar, 3.6% of its homes against 3.45% statewide.
Among the 4 New Hampshire utilities with at least 5,000 residential customers and a full-service price, the price ran from 22.65¢ at Public Service Company of NH to 23.83¢ at New Hampshire Electric Co-op. At the New Hampshire average of 7,428 kWh a year, that 1.18¢ gap is worth about $88 a year (our arithmetic), so the same system offsets more money in one territory than the other.
Price a quote on your own utility’s rate, not the 23.40¢ New Hampshire average.
Rooftop solar is concentrated: Public Service Company of NH alone accounts for 16,580 net-metered residential systems, about 74% of the 22,503 counted in New Hampshire, and 4 New Hampshire utilities reported any at all. The highest adoption among the larger utilities was at Liberty Utilities (Granite State Electri, where 4.2% of homes had a system.
What does power cost in New Hampshire, and why does it matter?
Residential electricity in New Hampshire averaged 23.40¢ per kilowatt-hour in 2024, the 9th-highest of 51 and above the national 16.48¢. New Hampshire sits in the top quarter on price, so power used on site replaces power bought at well above the national rate.
The average New Hampshire household bill was $144.87 a month ($1,738 a year), the 18th-highest of 51, against $142.26 nationally. That $1,738 is the ceiling on what solar could save a typical New Hampshire home, before fixed monthly charges.
Only 0.13% of New Hampshire homes were on a time-varying rate in 2024 (11.1% nationally), so a flat rate is the likely starting point. 21.8% of New Hampshire residential meters were smart meters (83.8% nationally), and a time-varying rate needs one. How time-of-use changes solar.
How many New Hampshire homes have solar?
New Hampshire had 22,503 rooftop systems on net metering in 2024, across 652,608 residential accounts: 3.45% of homes, the 14th-highest of 51. By national standards New Hampshire is a mature market, which can mean several installers to compare and a permit office that has handled solar before.
The New Hampshire market counted 3,372 more systems in 2024 than in 2023 and has grown 20.8% a year over five years, the 18th-lowest of 51. Where growth has turned nationally.
How has New Hampshire solar changed since 2014?
New Hampshire counted 1,650 net-metered rooftop systems in 2014 and 22,503 in 2024, 13.6 times as many. The share of homes with one moved from 0.27% to 3.45%. The biggest one-year addition came in 2023, with 5,555 more systems than the year before.
| Year | Rooftop systems | Share of homes | Average size | Residential price |
|---|---|---|---|---|
| 2014 | 1,650 | 0.27% | 5.1 kW | 17.53¢ |
| 2016 | 5,363 | 0.88% | 6.6 kW | 18.38¢ |
| 2018 | 7,597 | 1.22% | 7.1 kW | 19.69¢ |
| 2020 | 9,761 | 1.54% | 7.5 kW | 19.04¢ |
| 2022 | 13,576 | 2.11% | 7.8 kW | 25.46¢ |
| 2024 | 22,503 | 3.45% | 8.1 kW | 23.40¢ |
Source: US EIA, Form EIA-861 annual files 2014–2024, net-metered residential systems, retrieved 2 September 2026. New Hampshire shares and sizes are HyreSolar calculations.
What does the New Hampshire trend mean for a savings estimate?
Over the same years the New Hampshire residential price went from 17.53¢ to 23.40¢ per kWh, up 33%, and the average system from 5.1 kW to 8.1 kW.
A rate that has risen that far makes a 2024 bill a conservative base for a New Hampshire savings estimate only if the trend continues, which nobody can promise.
How big is a typical New Hampshire system?
The average New Hampshire system was 8.06 kW in 2024, the 13th-highest of 51, against 6.74 kW nationally. New Hampshire homes used 7,428 kilowatt-hours a year each, the 10th-lowest of 51.
A New Hampshire home using 7,428 kWh is an average, not a design input: size from your own twelve months of bills and usable roof with cost by system size and the system size calculator.
Who owns the systems in New Hampshire?
In New Hampshire, 25.7% of systems were third-party owned in 2024: leased, or on a power purchase agreement (PPA), rather than owned by the household. That is the 14th-highest of 38, against 29.1% nationally.
Leases and power purchase agreements are a large share of the New Hampshire market, so expect one to be offered alongside a purchase. Whoever owns a New Hampshire system claims any tax credit on it: Section 48E explained.
Do New Hampshire homes add batteries?
In New Hampshire, 3.19% of solar systems were paired with a battery in 2024 (718 systems), the 14th-highest of 47. New Hampshire’s share is below the national 5.86%.
On reliability, the average New Hampshire customer went 736 minutes without power in 2024 counting major storms, and 84 minutes without them. The median state saw 297. Outages in every state.
Whether a battery pays in New Hampshire turns on your utility’s export credit and your own outage history: what a home battery does.
How do you check a solar company’s license in New Hampshire?
We found no dedicated state register for solar work in New Hampshire, so we publish no company counts. That is not evidence of light regulation: electrical work can be licensed at state or local level even where solar is never named.
With 22,503 systems in New Hampshire, the company quoting you may be based out of state. Ask which license it holds, in which state, and confirm it with that authority. What to do when the search comes back empty.
Which states are closest to New Hampshire on adoption?
The six jurisdictions nearest to New Hampshire’s 3.45% share of homes with rooftop solar.
Where do the New Hampshire numbers come from?
The New Hampshire figures are HyreSolar calculations from the Form EIA-861 annual files: 22,503 net-metered residential systems counted against 652,608 residential accounts, sizes as means, and 4 utility-level rows for the utility table, matched to net-metering records by EIA utility number.
The method and limits cover all 51; the New Hampshire row is in the data as a CSV.
No New Hampshire figure here is an estimate for one home: your roof, usage, utility tariff and tax position decide that.
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Questions
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Do New Hampshire homeowners add batteries to solar?
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