Unitil Energy Systems electricity rates in New Hampshire, 2025
Unitil Energy Systems’s 24,452 residential customers paid an average of 21.72¢ per kWh in 2025, 11% below the New Hampshire average of 24.53¢. The typical home used 601 kWh a month, for an average bill of $131.
- 21.72¢avg ¢/kWh (2025)−1.60¢ (-6.9%) vs 2024
- $131Avg monthly billNew Hampshire: $157
- 601 kWhAvg monthly useNew Hampshire: 640 kWh
- 24,452Residential customersFull-service utility
| Sector | Customers | Sales (MWh) | Revenue | ¢/kWh 2025 | ¢/kWh 2024 | Change |
|---|---|---|---|---|---|---|
| Residential | 24,452 | 176,352 | $38,310,300 | 21.72¢ | 23.33¢ | −1.60¢ (-6.9%) |
| Commercial | 3,701 | 61,010 | $13,475,500 | 22.09¢ | 23.54¢ | −1.45¢ (-6.2%) |
| Industrial | 20 | 15,327 | $2,817,800 | 18.38¢ | 19.55¢ | −1.16¢ (-6.0%) |
| All sectors | 28,173 | 252,689 | $54,603,600 | 21.61¢ | 23.24¢ | −1.63¢ (-7.0%) |
How Unitil Energy Systems compares
- New Hampshire residential average, 2025: 24.53¢ per kWh, 640 kWh a month, $157 average bill. U.S. average: 17.23¢, 874 kWh, $151.
- Among 4 full-service utilities in New Hampshire with at least 1,000 residential customers, Unitil Energy Systems ranks 1 of 4 from lowest to highest average price.
- Latest monthly figure: New Hampshire homes paid 27.64¢ per kWh in August 2026 (preliminary), against 24.44¢ in August 2025. Summer months often run higher than the annual average.
- From 2024 to 2025 this average fell 6.9%; the state average rose 4.8%.
- Another 44,629 residential customers buy supply from a competitive supplier and pay Unitil Energy Systems only for delivery, averaging 11.48¢ per kWh for that service.
- Unitil Energy Systems is an investor-owned utility, a private company whose rates are set by the state utility commission. Balancing authority: ISNE.
Where Unitil Energy Systems serves
EIA lists 2 New Hampshire counties in its 2025 service territory: Merrimack, Rockingham.
39 ZIP codes are matched to Unitil Energy Systems in NREL’s 2024 ZIP file: 03037, 03044, 03046, 03079, 03106, 03216, 03224, 03229, 03234, 03235, 03258, 03263, 03268, 03275, 03278, 03301, 03302, 03303, 03304, 03305, 03307, 03811, 03819, 03826, 03827, 03833, 03840, 03841, 03842, 03843, 03844, 03848, 03856, 03858, 03859, 03862, 03865, 03874, 03885. Utility boundaries do not follow ZIP lines, so a ZIP can have more than one provider.
New Hampshire full-service utilities with similar rates
| Provider | ¢/kWh | Avg bill | Customers |
|---|---|---|---|
| Liberty Utilities (Granite State Electri | 22.59¢ | $160 | 23,432 |
| Public Service Co of NH | 24.17¢ | $150 | 263,458 |
| New Hampshire Elec Coop Inc | 24.70¢ | $151 | 70,173 |
Sources
- U.S. Energy Information Administration, Annual Electric Power Industry Report, Form EIA-861, 2025 final data (f8612025.zip, file dated October 7, 2026): Sales to Ultimate Customers, Average Monthly Bill and Service Territory tables.
- EIA Form EIA-861, 2024 final data (f8612024.zip, file dated December 4, 2025), for the 2024 comparison.
- EIA Electric Power Monthly, Table 5.6.A (average price by state, August 2026 and August 2025; 2026 values are preliminary), file dated October 22, 2026.
- National Renewable Energy Laboratory via OpenEI, U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2024) (investor-owned and other utilities, files dated November 10, 2025), used only to match ZIP codes to utilities.
Average price = residential revenue ÷ residential kWh sold, as reported to EIA. It includes fixed monthly charges, taxes passed through in revenue and seasonal tiers, averaged over the year. Your own rate depends on your tariff and usage.
All New Hampshire electricity providers · How we compute rates