Generator installation cost in New Hampshire
In New Hampshire, a whole house generator of 22 kW that burns natural gas comes to about $10,969 to $15,469 once installed. Local electricians make $31.63 an hour, which sits 8% under the US average of $34.37. That rate drives the $2,800 to $5,100 electrician portion of the price.
Unsure whether 22 kW will do? Size your house with three questions.
Installed prices in New Hampshire for each size
Half-load fuel use and New Hampshire prices. For every model, Generac puts out a fuel table. Its 18 kW, 24 kW and 26 kW units are rated to burn no more each hour than the size below, so hourly fuel use doesn't climb in step with kW.
| Size | Natural gas, installed | Gas at half load | Propane, installed | Propane at half load | Fuel figures |
|---|---|---|---|---|---|
| 10 kW | $8,219 to $12,719 | $2.36/h | $8,419 to $13,219 | $3.79/h | Generac Guardian 10 kW |
| 14 kW | $9,549 to $14,049 | $4.55/h | $9,749 to $14,549 | $7.07/h | Generac Guardian 14 kW |
| 18 kW | $10,369 to $14,869 | $3.94/h | $10,569 to $15,369 | $6.64/h | Generac Guardian 18 kW |
| 22 kW | $10,969 to $15,469 | $4.76/h | $11,169 to $15,969 | $9.88/h | Generac Guardian 22 kW |
| 24 kW | $11,389 to $15,889 | $4.73/h | $11,589 to $16,389 | $9.88/h | Generac Guardian 24 kW |
| 26 kW | $11,819 to $16,319 | $4.38/h | $12,019 to $16,819 | $8.04/h | Generac Guardian 26 kW |
What makes up the 22 kW price in New Hampshire
With the hourly rate at $31.63, ranked 33rd of 51, labor runs up to $400 under what US average pay would cost.
| Line, 22 kW | Natural gas | Propane | Basis |
|---|---|---|---|
| Generator | $6,309 | $6,309 | The Generac list price of the 22 kW bundle, less the switch |
| Transfer switch | $1,060 | $1,060 | Difference between Generac's prices with and without the switch |
| Electrician: switch, wiring, start-up | $2,800 to $5,100 | $2,800 to $5,100 | published install ranges, adjusted to the New Hampshire wage ($31.63 an hour, BLS) |
| Fuel line | $500 to $1,800 | $700 to $2,300 | Gas line connected to the meter; propane line connected to the tank |
| Pad and permit | $300 to $1,200 | $300 to $1,200 | composite pad or slab, local fees |
| Installed | $10,969 to $15,469 | $11,169 to $15,969 | propane leaves out the tank |
What fuel costs in New Hampshire
| Fuel | Price | 22 kW an hour | Three days |
|---|---|---|---|
| Natural gas | $23.32 per 1,000 ft³ | $4.76 | $343 |
| Propane | $3.90 a gallon | $9.88 | $711 (182 gal) |
New Hampshire gas costs less than propane: $4.76 an hour for a 22 kW at half load, against $9.88 on propane. For residential gas, this state ranks 33rd cheapest of 51.
| Propane tank | Usable at 80% | 22 kW at half load | Fill at New Hampshire price |
|---|---|---|---|
| 250 gal | 200 gal | 79 h | $781 |
| 500 gal | 400 gal | 158 h | $1,562 |
Power outages in New Hampshire
In 2025, New Hampshire customers lost power for an average of 151 minutes. That's below the US figure of 269 and ranks 43rd highest of 51. Major storms accounted for 43% of that total. On ordinary days, outages ran 86 minutes. Of the last ten years, 2017 ran the longest, at 915 minutes. Averaged over ten years, outages total 434 minutes, so 2025 came in 283 minutes under that.
All years from 2016 onward
| Year | Minutes out, all events | Rank of 51 states | Without major storms |
|---|---|---|---|
| 2025 | 151 | 43rd | 86 |
| 2024 | 736 | 10th | 84 |
| 2023 | 591 | 10th | 89 |
| 2022 | 496 | 9th | 78 |
| 2021 | 177 | 31st | 98 |
| 2020 | 409 | 19th | 99 |
| 2019 | 220 | 29th | 85 |
| 2018 | 451 | 13th | 122 |
| 2017 | 915 | 5th | 121 |
| 2016 | 193 | 27th | 135 |
Utilities in New Hampshire: their 2025 outages
| Utility | Customers | Minutes out | Outages each | Minutes per outage |
|---|---|---|---|---|
| Public Service Co of NH | 555,603 | 161 | 1.09 | 147 |
| New Hampshire Elec Coop Inc | 85,745 | 874 | 4.05 | 216 |
| Unitil Energy Systems | 80,020 | 98 | 1.36 | 72 |
| Liberty Utilities (Granite State Electri | 48,072 | 125 | 1.07 | 117 |
Customers of New Hampshire Elec Coop Inc spent 874 minutes without power in 2025, while Unitil Energy Systems customers had 98 minutes. With a spread of 8.9 to one, your street's utility matters more than the state's 151 minute figure. Across all utilities, customer weighting puts the average at 1.12 power losses per year, compared with 1.35 throughout the US. An outage on Public Service Co of NH lines ran 147 minutes on average, or about 2.5 hours. Running a 22 kW at half load that long takes $11.67 of gas.
Major disasters listed by FEMA: New Hampshire, since 2016
In all, 15 major disasters have been declared: severe storms (10), floods (2), a coastal storm (1), a snowstorm (1) and a winter storm (1). The most recent declaration came in October 2026, and COVID-19 isn't counted. Tropical or coastal storms account for 1 of the 15 declarations, and their outages run for days. Winter storms, snow storms and ice storms account for 2 of them, and a cold-weather kit is what keeps the engine starting.
Grafton County was named most often (9), then Carroll County (8), Coos County (6), Belknap County (5), Sullivan County (4) and Cheshire County (3).
| Declared | Disaster | FEMA number |
|---|---|---|
| October 2026 | Severe Storm and Flooding | DR-4947 |
| August 2024 | Severe Storm and Flooding | DR-4812 |
| July 2024 | Severe Winter Storm and Flooding | DR-4799 |
| April 2024 | Severe Storms and Flooding | DR-4771 |
| February 2024 | Severe Storm and Flooding | DR-4761 |
| September 2023 | Severe Storms and Flooding | DR-4740 |
New Hampshire and the states beside it
| State | 22 kW on gas, installed | Wage | Minutes out |
|---|---|---|---|
| New Hampshire | $10,969 to $15,469 | $31.63 | 151 |
| Massachusetts | $11,669 to $17,169 | $39.21 | 122 |
| Maine | $11,369 to $16,669 | $37.14 | 363 |
| Vermont | $11,269 to $16,269 | $35.27 | 251 |
Among its neighbors, New Hampshire is cheapest for this install; Massachusetts begins $700 above it. The bigger gap is in outages, not price: Maine logged 363 minutes in 2025, compared with 151 here.
Sources: BLS wages (May 2025), gas data from EIA (March to August 2026), propane data from EIA (October 26, 2026), outage data from EIA, EIA-861, FEMA. All states.