Editor: Katerine G., Editor & Data Researcher · Research & publishing: Electric Consumer Editorial Team · Data retrieved · Sources named on this page: EIA-861, EIA retail sales · How we got these numbers · Report an error
Unitil Energy Systems in New Hampshire: 18.51 ¢ home rates in 2024, SAIDI and solar
Unitil Energy Systems is an investor owned utility serving 81,452 customer accounts in New Hampshire; 68,602 of them are residential. Its home price sits 20.9% under the New Hampshire average and ranks 1st of 4 among larger utilities.
Unitil Energy Systems: 602 kWh a month costs roughly $111 in energy at 18.51 ¢/kWh, -20.9% on the New Hampshire average of 23.40 ¢.
Its home price sits 20.9% under the New Hampshire average and ranks 1st of 4 among larger utilities.
Unitil Energy Systems on price: 20.9% under New Hampshire
Home price against New Hampshire
-20.9%1st place of 4, cheapest first
Home price is where Unitil Energy Systems departs furthest from the New Hampshire pattern: 18.51 ¢ against a state average of 23.40 ¢, 1st place of 4 among New Hampshire utilities with 20,000+ homes. The cheapest of those is Unitil Energy Systems at 18.51 ¢ (+0.00 ¢ from here), the most expensive New Hampshire Elec Coop Inc at 23.61 ¢ (+5.10 ¢).
A home using 602 kWh a month pays about $111 in energy here; at the New Hampshire average the same use would cost $141, a difference of -$29 a month.
How it compares
Unitil Energy Systems
Unitil Energy Systems, 2024
Home
Business
Bill
SAIDI
Unitil Energy SystemsLowest in this table
18.51 ¢/kWh
14.07 ¢/kWh
$111at 602 kWh
98 minSAIDI
New Hampshire average against this company, which is 1 of 4 on price
No 2025 early-release row for Unitil Energy Systems; 2024 stays the latest year.
Unitil Energy Systems 2024 against New Hampshire 2025
-6.02 ¢18.51 ¢ for Unitil Energy Systems in 2024, 24.53 ¢ for New Hampshire in 2025
No 2025 line exists yet for Unitil Energy Systems, so 18.51 ¢/kWh and a SAIDI of 98 minutes (2024, 68,602 homes) are the latest figures.
Carbon context
Unitil Energy Systems serves 68,602 homes in New Hampshire. At 602 kWh a month that is about 75 kg of CO₂, or 894 kg a year, at the New Hampshire plant rate, state generation and not this utility: New Hampshire generation mix.
Unitil Energy Systems charts
Residential price since 2015: 18.51 ¢ in 2024
16.95 ¢ in 2015, 18.51 ¢ in 2024 (+9.2%); New Hampshire 18.50 to 23.40 ¢.
Unitil Energy Systems residential price 2015-2024, 2015 to 2024: 10 rows
Unitil Energy Systems billed homes 16.95 ¢/kWh in 2015 and 18.51 ¢ in 2024, +9.2% in all, and lagged the New Hampshire average (+26.5%) by 17.3 points. Full-service customers alone pay 23.33 ¢ per EIA, against 18.51 ¢ for all rows: buyers of energy elsewhere pay Unitil Energy Systems for delivery only. Unitil Energy Systems's sharpest move came in 2024, -35.1%. The high is 28.50 ¢ (2023) and the low 14.37 ¢ (2016). 2024: -35.1% here, -16.9% for the New Hampshire average. SAIDI at Unitil Energy Systems (major events excluded) went from 113 minutes in 2015 to 98 in 2024, -13%, between 71 (2022) and 120 (2020). Unitil Energy Systems filed SAIDI under the national median in 5 of 10 years; its 2024 figure was 98 minutes, -2 from that year's median. 2017: 862 minutes with major events, 113 without, the widest gap of any year. Unitil Energy Systems has 0 cheaper and 3 higher-priced New Hampshire peers among 4 with 20,000+ homes. Next higher-priced, Public Service Co of NH, bills 18.74 ¢ (+0.24).
Price is the selling point in this record: 20.9% under the New Hampshire average, with 98 outage minutes close to the national median (0.98x).
Home accounts at Unitil Energy Systems went from 65,265 in 2015 to 68,602 in 2024, +5.1%. Business customers paid 0.76 times the home price in 2024 (14.07 against 18.51 ¢); the ratio was 0.78 in 2015. SAIFI went from 1.58 in 2015 to 1.00 in 2024, between 0.84 and 1.60.
Outages and home price of Unitil Energy Systems (EIA utility 24590), 2013 to 2024
By 2024 the average Unitil Energy Systems customer sat through 98 minutes of outage, against 184 in 2014 (−47%). Its best year was 2022 (71 min), its worst 2014 (184 min), across 11 filed years. Against a New Hampshire median of 93 minutes in 2024, Unitil Energy Systems was above the middle.
Corrected for inflation, a Unitil Energy Systems home paid 19.00 ¢/kWh in 2024 against 19.59 ¢ in 2013, −3.0%; the bill itself went 14.17 ¢ to 18.51 ¢ (+30.6%). A home using 1,000 kWh a month paid $2,350 for the year at the 2013 real price and $2,280 at the 2024 price. Place on home price: 3rd cheapest of 6 in 2013, 3rd of 7 in 2024 among New Hampshire utilities with 1,000+ homes.
Unitil Energy Systems outage minutes a customer, 2014 to 2024: 98 in 2024
Unitil Energy Systems at 98 min in 2024 and the New Hampshire median at 93.
Unitil Energy Systems home price since 2013: −3.0% after inflation
Unitil Energy Systems: 19.00 ¢ in 2025 dollars (solid) and 18.51 ¢ as billed (dashed) in 2024.
Unitil Energy Systems, EIA utility 24590, year by year among New Hampshire utilities
Unitil Energy Systems 2013-2024: 12 rows
Year, Unitil Energy Systems
¢ billed
¢ in 2025 $
Price place, Unitil Energy Systems
SAIDI min
SAIFI
SAIDI place, Unitil Energy Systems
New Hampshire median SAIDI
2013
14.17
19.59
3 of 6
–
–
–
–
2014
15.80
21.49
4 of 6
184
1.73
–
184
2015
16.95
23.02
4 of 6
113
1.58
–
106
2016
14.37
19.27
3 of 6
102
0.98
–
139
2017
15.38
20.20
4 of 7
113
1.33
–
119
2018
17.00
21.80
4 of 7
116
1.20
–
120
2019
17.68
22.26
6 of 8
83
0.84
–
83
2020
17.38
21.62
5 of 6
120
1.60
–
101
2021
18.15
21.56
4 of 6
103
1.04
–
103
2022
22.97
25.27
3 of 6
71
0.88
–
79
2023
28.50
30.11
7 of 7
91
0.89
–
91
2024
18.51
19.00
3 of 7
98
1.00
–
93
Unitil Energy Systems, EIA utility 24590: EIA-861, CPI-U.
Unitil Energy Systems files with EIA as an investor-owned utility. In New Hampshire, investor-owned utilities serve 88% of residential customers at an average 22.7 cents per kWh. Unitil Energy Systems itself averaged 23.3 cents, 0.6 cents above its type in New Hampshire.
Shutoffs: this utility reported 1,542 disconnections for nonpayment in 2024, 2.2 per 100 accounts (New Hampshire: 3.0; EIA Form EIA-112). All utilities.
Reliability and meters, 2024
In 2024 the average Unitil Energy Systems customer was without power 98 minutes without major events and 593 with them. That is 3rd fewest of 3 New Hampshire utilities with 10,000+ customers. The median New Hampshire utility reported 93 minutes. Smart (AMI) meters: 100% of its 68,826 residential meters.
How big is Unitil Energy Systems in New Hampshire, by customer accounts?
81,452 accounts in 2024: residential 68,602, commercial 12,687, industrial 163.
How many cents per kWh does Unitil Energy Systems charge homes?
In 2024 homes paid 18.51 cents; against the New Hampshire average that is -20.9%.
What are the SAIDI and SAIFI of Unitil Energy Systems?
SAIDI 97.7 min and SAIFI 1.00 a year, major events excluded; ratio to the national median 0.98, CAIDI 98 min.
How many net-metered systems connect to Unitil Energy Systems?
2,508 installations with 34.0 MW, of which residential installations number 2,381.
What would a typical Unitil Energy Systems home pay each month?
602 kWh at 18.51 cents comes to about $111, energy only.
Is Unitil Energy Systems cheaper than other New Hampshire utilities?
Rank 1 of 4 in New Hampshire on price, -20.9% against the state average; 0 charge less than 18.51 ¢.
What share of Unitil Energy Systems sales do homes buy?
Homes take 43.2% of 1,148,234 MWh, commercial accounts 28.9%, industrial and other 27.9%; the 12,687 commercial accounts use 26,183 kWh each, 3.6 times a home.
At Unitil Energy Systems, are smart meters in homes, with a TOU option?
68,825 of 68,826 home meters are AMI, 100.0%. Unitil Energy Systems offers a home time-of-use rate; 50 customers use dynamic pricing, 0.07% of its homes.
Has Unitil Energy Systems moved up the New Hampshire price list since 2015?
2nd cheapest of 4 in 2015, 1st of 4 in 2024; its price rose 9.2% while New Hampshire rose 26.5%.
Has Unitil Energy Systems filed 2025 data with EIA?
Its latest filing year is 2024, with 98 SAIDI minutes and 18.51 cents for homes.
Utilities with a similar home price
Home prices nearest to Unitil Energy Systems at 18.51 ¢/kWh in 2024, among companies with a page here, any state.
EIA-861 form instructions for Unitil Energy Systems in New Hampshire: 18.51 ¢ home rates in 2024, SAIDI and solar, how a customer is counted
EIA state profiles for Unitil Energy Systems in New Hampshire: 18.51 ¢ home rates in 2024, SAIDI and solar, the state price average
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Unitil Energy Systems: 602 kWh a month costs roughly $111 in energy at 18.51 ¢/kWh, -20.9% on the New Hampshire average of 23.40 ¢.
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Underlying data are U.S. government works (EIA, Census Bureau). Our tables and charts: CC BY 4.0, credit Electric Consumer. The access date fills in when you open this page.
APA
Electric Consumer. (2026). Unitil Energy Systems price vs New Hampshire: 18.51 ¢/kWh in 2024, SAIDI 98 min. Data as of 26 October 2026. Retrieved 26 October 2026, from https://electricconsumer.org/companies/unitil-energy-systems.html
MLA
Electric Consumer. “Unitil Energy Systems price vs New Hampshire: 18.51 ¢/kWh in 2024, SAIDI 98 min.” Electric Consumer, data as of 26 October 2026, https://electricconsumer.org/companies/unitil-energy-systems.html. Accessed 26 October 2026.
Chicago
Electric Consumer. “Unitil Energy Systems price vs New Hampshire: 18.51 ¢/kWh in 2024, SAIDI 98 min.” Data as of 26 October 2026. Accessed 26 October 2026. https://electricconsumer.org/companies/unitil-energy-systems.html.
BibTeX
@misc{usedata_companies_unitil_energy_systems,
author = "Electric Consumer",
title = {Unitil Energy Systems price vs New Hampshire: 18.51 ¢/kWh in 2024, SAIDI 98 min},
year = {2026},
url = {https://electricconsumer.org/companies/unitil-energy-systems.html},
note = {Data as of 26 October 2026. Accessed 26 October 2026}
}
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