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Unitil Energy Systems
Unitil Energy Systems served 44,629 residential customers in New Hampshire in 2025 (6.8% of the state's residential customers), the 4th largest of 18 utilities reporting there. Delivery-only service; ownership: investor owned; balancing authority ISNE.
The meter, one average month.
Scroll to run 30 days of Unitil Energy Systems's average residential use through a five-dial register.
- Used so far
- 638 kWh
- At 11.48¢/kWh
- $73.17
Price ruler0 to 50¢ per kWh
Where 11.48¢ sits.
This page covers delivery-only service, which is only part of a household's bill, so its 11.48¢ is not compared with the New Hampshire bundled average of 24.56¢. Both are drawn for scale only.
2020 and 2025EIA-861
Five years, same meter.
In 2020 the average Unitil Energy Systems home used 689 kWh a month at 9.53¢ and paid $65.71. In 2025 it used 638 kWh at 11.48¢ and paid $73.17: the price per kWh is up 20.4%.
| Measure | 2020 | 2025 |
|---|---|---|
| Price, ¢/kWh | 9.53 | 11.48 |
| Use, kWh a month | 689 | 638 |
| Bill, US$ a month | 65.71 | 73.17 |
| Class | Customers | MWh sold | ¢/kWh |
|---|---|---|---|
| Residential | 44,629 | 341,427 | 11.48 |
| Commercial | 9,059 | 278,804 | 10.07 |
| Industrial | 140 | 302,938 | 6.95 |
Who else is on the line
Homes are one class.
Homes took 37.0% of the electricity Unitil Energy Systems sold in New Hampshire in 2025.
Rooftop solar on its linesnet metering
2,574 roofs.
- Residential net-metered PV
- 2,574installations reported for 2025
- Capacity
- 20.9 MWresidential, net metered
- Per 1,000 homes
- 57.7installations per 1,000 residential customers
Service territoryEIA-861
2 counties.
MerrimackRockingham
Counties in New Hampshire where Unitil Energy Systems reported serving customers in 2025 (2 in all; up to 24 listed).
EIA-8612025Utility 24590
The filing, line by line.
| Measure | Value | Unit |
|---|---|---|
| Average price | 11.48 | ¢/kWh |
| New Hampshire average price | 24.56 | ¢/kWh |
| Price change over 5 years | 20.4 | % |
| Typical monthly use | 638 | kWh |
| Typical monthly bill | 73.17 | US$ |
| Residential customers | 44,629 | accounts |
| Share of NH residential customers | 6.8 | % |
| Size rank in NH | 4 of 18 | by customers |
Rate plans on fileOpenEI URDB
None shown for this page. Plan counts appear once per utility, on its largest state's bundled page; how plans are counted.
New Hampshire: state average, five-year steps and every provider