21.72¢
per kWh, 2025
[ Unitil Energy Systems / NH ]
Unitil Energy Systems electricity rates in New Hampshire
NO RATE CASE ON FILE · DATA 2025
change in average rate, 2024→2025
−6.9%
vs 2024
69,081
residential customers
+19.5%
since 2020
What your bill becomes
Bill today
No change on file
Difference / month · / year
Estimated at Unitil Energy Systems's average effective residential rate (21.72¢/kWh, EIA, all charges included). Your tariff, fees and taxes differ.
Rate history 2015–2025
| Year | ¢/kWh | Change | Customers |
|---|---|---|---|
| 2015 | 18.68¢ | — | 65,265 |
| 2016 | 15.52¢ | −16.9% | 65,781 |
| 2017 | 16.48¢ | +6.2% | 66,168 |
| 2018 | 18.09¢ | +9.8% | 66,133 |
| 2019 | 18.70¢ | +3.4% | 66,586 |
| 2020 | 18.17¢ | −2.8% | 67,173 |
| 2021 | 18.87¢ | +3.9% | 67,643 |
| 2022 | 24.23¢ | +28.4% | 67,997 |
| 2023 | 32.47¢ | +34.0% | 68,062 |
| 2024 | 23.33¢ | −28.1% | 68,602 |
| 2025 | 21.72¢ | −6.9% | 69,081 |
How this compares
24.53¢
New Hampshire average, 2025
−11.5%
Unitil Energy Systems vs NH 2025 average
+26.1%
vs US 2025 average
#4
priciest in NH
Serves 2 counties in New Hampshire: Merrimack, Rockingham. 39 ZIP codes.
Questions
Is Unitil Energy Systems raising rates in 2026?
No rate case for Unitil Energy Systems is on file with the New Hampshire Public Utilities Commission in our tracker. Its average residential rate moved −6.9% from 2024 to 2025. We check the commission docket monthly.
What does Unitil Energy Systems charge per kWh?
Unitil Energy Systems's average effective residential rate was 21.72¢ per kWh in 2025 (EIA-861, revenue divided by sales, all charges included). New Hampshire's 2025 average was 24.53¢.
How much have Unitil Energy Systems rates gone up in five years?
+19.5% between 2020 and 2025, against +39.6% for New Hampshire as a whole over the latest five-year window.
How many customers does Unitil Energy Systems have in New Hampshire?
69,081 residential customers in 2025, across 2 counties including Merrimack, Rockingham, according to the EIA-861 survey.
Where do these numbers come from?
Rates and customer counts are from the US Energy Information Administration's annual EIA-861 survey; rate-case facts are from the New Hampshire Public Utilities Commission docket linked on this page. Nothing here is a utility bill; use it to understand the direction and size of changes.
Sources
- EIA-861 Sales to Ultimate Customers, 2015–2025 (released 2026-10-07)
- EIA-861M monthly state averages through Jul 2026
- NREL utility-by-ZIP lookup (2024)