How Much to Run a Space Heater in New Hampshire? $657/Winter
Running space heater in New Hampshire costs about $0.40 an hour and roughly $657 for the winter — 1,500 W for 9.0 hours a day at 26.78¢/kWh.
· Source: EIA Electric Power Monthly Table 5.6.A (July 2026 data) · next EIA update ~Oct 23
On this page: CalculatorTableHow we calculatedSources
Jump to calculator ↓Slider nudges the New Hampshire rate; the URL keeps it.
- Per hour
- $0.40 at 26.78¢/kWh
- Per winter
- $657 (182 days)
- Hours per day
- 9.0 (NOAA state heating degree-days-scaled)
- Degree-days used
- 6,287 (NOAA CPC state, population-weighted)
- Wattage
- 1,500 W (typical 750–1,500)
- New Hampshire rate
- 26.78¢ (October 2025–March 2026 average)
- Rank of 20 cold states
- 2 (2nd most expensive)
Why this number
New Hampshire runs space heater longer than the national baseline in October–March — 9.0 hours a day on the NOAA state degree-day scaling used here, against 5.0 nationally — and pays 26.78¢/kWh for it. Those two numbers, times 1,500 W, are the whole $657.
Space heater cost in New Hampshire by hours per day — per day / per winter
| Hours per day | New Hampshire avg 26.78¢ | Public Service Co of N 18.7¢ | Community Power Coalit 8.7¢ | New Hampshire Elec Coo 23.6¢ |
|---|---|---|---|---|
| 1 h | $0.40 / $73 | $0.28 / $51 | $0.13 / $24 | $0.35 / $64 |
| 2 h | $0.80 / $146 | $0.56 / $102 | $0.26 / $48 | $0.71 / $129 |
| 4 h | $1.61 / $292 | $1.12 / $204 | $0.52 / $95 | $1.42 / $258 |
| 6 h | $2.41 / $439 | $1.68 / $306 | $0.78 / $143 | $2.12 / $387 |
| 8 h | $3.21 / $585 | $2.24 / $408 | $1.04 / $190 | $2.83 / $515 |
| 12 h | $4.82 / $877 | $3.37 / $613 | $1.57 / $285 | $4.25 / $773 |
What New Hampshire’s utilities charge for it
| Utility | Residential customers | ¢/kWh (EIA-861 2024) | Per hour | Per winter at 9.0 h/day |
|---|---|---|---|---|
| Public Service Co of NH | 459,907 | 18.7¢ | $0.28 | $459 |
| Community Power Coalition of NH | 104,562 | 8.7¢ | $0.13 | $213 |
| New Hampshire Elec Coop Inc | 74,144 | 23.6¢ | $0.35 | $579 |
What the numbers say about space heater in New Hampshire
New Hampshire logged 6,287 population-weighted heating degree-days over October–March (NOAA CPC state series), 180% of the CONUS figure of 3,500, which is why this page runs space heater 9.0 hours a day against the national 5.0 — 4.0 hours more. At New Hampshire’s October 2025–March 2026 average rate of 26.78¢/kWh that makes it the 2nd most expensive of the 20 cold states for space heater: $657 for the 182-day winter, against Nebraska’s $220 and Maine’s $752. Public Service Co of NH, New Hampshire’s largest utility with 459,907 residential customers, averages 18.7¢ — $459 for the same hours — while New Hampshire Elec Coop Inc at 23.6¢ comes to $579, a $120 spread on identical use. Per million Btu delivered, resistance heat at 26.78¢ costs $78.48 against $20.00 for natural gas at New Hampshire’s winter average of $1.90/therm, so a 1,500 W heater is a room-by-room supplement in New Hampshire, not a whole-house plan. New Hampshire’s winter-average rate (26.78¢) sits 0.18¢ above its July 2026 reading of 26.6¢; the season figure uses the winter average because that is when space heater runs.
Frequently asked questions
How much does it cost to run space heater per hour in New Hampshire?
$0.40 an hour for a 1,500 W unit at New Hampshire’s October 2025–March 2026 average average of 26.78¢/kWh (1,500 ÷ 1,000 × 0.2678); at Public Service Co of NH’s 18.7¢ it is $0.28.
How much does space heater cost for the whole winter in New Hampshire?
About $657: 1,500 W × 9.0 hours a day × 182 days (October–March) × 26.78¢. The hours are the national 5.0 h/day scaled by NOAA CPC state population-weighted HDD, October 2025–March 2026 (6,287 against the CONUS 3,500); enter your own hours above for your own figure.
Is space heater expensive to run in New Hampshire compared with other cold states?
New Hampshire is the 2nd most expensive of the 20 cold states on this site at $657 a winter; the range runs from Nebraska ($220) to Maine ($752), driven almost entirely by the electricity rate.
How we calculated this
Worked for space heater in New Hampshire: 1,500 W ÷ 1,000 × 0.2678 $/kWh = $0.40 per hour; hours per day = 5.0 × (6,287 ÷ 3,500) = 9.0; 1,500 ÷ 1,000 × 9.0 × 182 × 0.2678 = $657 for the winter. Rate: EIA Electric Power Monthly 5.6.A (October 2025–March 2026 average); degree-days: NOAA CPC state population-weighted HDD, October 2025–March 2026, against the CONUS total; utility prices: EIA-861 2024.Sources: U.S. Energy Information Administration (EIA) electricity rates · DSIRE incentive records · public IRS/OBBBA guidance. Figures are modeled estimates, not quotes or tax advice. See our methodology.
Where to go next
- Cost to run space heater (national page) — The 1,500 W and 5.0 h/day baseline this page scales for New Hampshire, with the sourced benchmark.
- Cost to heat a home in New Hampshire — Gas, propane, oil, heat pump and resistance per MMBtu at New Hampshire’s own prices — the whole-house picture.
- Find your electricity rate by ZIP — New Hampshire averages 26.78¢ but its utilities span the table above — send your own rate into this calculator.
- Solar panel cost in New Hampshire — New Hampshire’s 26.6¢ July rate, utilities and rate history on the solar side.
- Cost to run heat pump in New Hampshire — Same New Hampshire rates and degree-days applied to a 3,500 W heat pump.
- Cost to run ductless mini-split in New Hampshire — Same New Hampshire rates and degree-days applied to a 2,000 W ductless mini-split.
- Cost to run space heater in Massachusetts — $656 for the winter at 30.88¢ and 7.8 h/day — the nearest cold-state comparison.
- Cost to run space heater in Vermont — $621 for the winter at 23.81¢ and 9.6 h/day — the nearest cold-state comparison.