States › Connecticut
State · 2024 annual, monthly to Jul 2026
Connecticut electricity prices and utilities
Households in Connecticut paid an average of 28.75¢ per kilowatthour for electricity in 2024, 74% above the US average of 16.48¢. That ranks 4th highest of the 50 states and the District of Columbia.
The average residential bill was $199.66 a month on 695 kWh of monthly use (US: $142.26 on 863 kWh), the 2nd highest bill. Residential sales came to 3,509 kWh per resident over the year.
In July 2026, the latest month EIA has published, the residential average was 24.16¢, down 12.5% on July 2025; the US figure for the month was 18.31¢. Monthly figures are preliminary until EIA finalises the year.
15 respondents reported residential customers in Connecticut on the full Form EIA-861 for 2024, and 4 smaller utilities filed the short form, which has no residential breakdown. Investor-owned utilities account for 81% of the residential customers reported.
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. State averages are EIA's own, from Forms EIA-861 and EIA-861M.
Residential price by month
ConnecticutUnited States
Monthly pages:Jul 2026Jun 2026May 2026Apr 2026Mar 2026Feb 2026Jan 2026Dec 2025Nov 2025Oct 2025Sep 2025Aug 2025Jul 2025Jun 2025May 2025Apr 2025Mar 2025Feb 2025Jan 2025Dec 2024Nov 2024Oct 2024Sep 2024Aug 2024
Year by year
| Year | Residential ¢ | US ¢ | Commercial ¢ | Industrial ¢ | Monthly bill | kWh a month |
|---|---|---|---|---|---|---|
| 2026 to Jul 2026 | 27.97¢ | 18.19¢ | 22.13¢ | 18.50¢ | $200.63 | 717 |
| 2025 preliminary | 29.38¢ | 17.30¢ | 23.11¢ | 18.35¢ | $207.16 | 705 |
| 2024 | 28.75¢ | 16.48¢ | 21.21¢ | 17.12¢ | $199.66 | 695 |
| 2023 | 29.88¢ | 16.00¢ | 19.99¢ | 15.69¢ | $202.74 | 678 |
| 2022 | 24.61¢ | 15.04¢ | 18.54¢ | 15.07¢ | $176.10 | 716 |
| 2021 | 21.91¢ | 13.66¢ | 16.46¢ | 9.63¢ | $156.21 | 713 |
| 2020 | 22.71¢ | 13.15¢ | 16.58¢ | 13.07¢ | $161.55 | 711 |
| 2019 | 21.87¢ | 13.01¢ | 16.75¢ | 13.44¢ | $150.71 | 689 |
| 2018 | 21.20¢ | 12.87¢ | 16.76¢ | 13.77¢ | $153.46 | 724 |
| 2017 | 20.29¢ | 12.89¢ | 16.06¢ | 13.10¢ | $139.97 | 690 |
| 2016 | 20.01¢ | 12.55¢ | 15.75¢ | 12.81¢ | $142.19 | 711 |
| 2015 | 20.94¢ | 12.65¢ | 15.97¢ | 12.95¢ | $153.13 | 731 |
| 2014 | 19.75¢ | 12.52¢ | 15.55¢ | 12.92¢ | $144.10 | 730 |
| 2013 | 17.55¢ | 12.13¢ | 14.63¢ | 12.61¢ | $132.07 | 752 |
Nominal prices. The five-year change in the residential average is +31.5%. A part-year row covers January to the latest month published, so it is not comparable with full years: winter and summer months weigh differently.
Utilities by average residential price, 2024
Every filing with at least 100 bundled residential customers in Connecticut, highest average price first. Linked utilities have 1,000 or more residential customers. A multi-state utility appears with its Connecticut figures only.
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| United Illuminating Co | Investor-owned | 312,291 | 34.04¢ | $184.69 | 121.8 | 49.2 |
| Connecticut Light & Power Co | Investor-owned | 1,174,420 | 28.51¢ | $187.10 | 158.8 | 76.9 |
| City of Norwich | Municipal | 18,870 | 22.78¢ | $140.25 | 288.0 | 288.0 |
| Bozrah Light & Power Company | Municipal | 2,434 | 19.33¢ | $160.78 | 277.9 | 184.1 |
| Groton Dept of Utilities | Municipal | 12,284 | 18.70¢ | $133.68 | 116.6 | 22.5 |
| Town of Wallingford | Municipal | 21,405 | 15.65¢ | $129.64 | 214.1 | 37.2 |
Energy-only and delivery-only filings
These respondents bill part of the service in Connecticut, so EIA's revenue figure for them is not a whole price and none is listed here.
| Respondent | Ownership | Residential customers |
|---|---|---|
| Constellation NewEnergy, Inc energy only | Retail power marketers | 125,376 |
| Town Square Energy energy only | Retail power marketers | 67,591 |
| Direct Energy Services energy only | Retail power marketers | 51,430 |
| Energywell LLC energy only | Retail power marketers | 26,417 |
| XOOM Energy Connecticut, LLC energy only | Retail power marketers | 12,460 |
| Major Energy Electric Services energy only | Retail power marketers | 5,931 |
| North American Power and Gas, LLC energy only | Retail power marketers | 4,254 |
| Reliant Energy Northeast LLC energy only | Retail power marketers | 107 |
| Energy Plus Holdings LLC energy only | Retail power marketers | 30 |
Reliability by utility, 2024
SAIDI: minutes of sustained interruption per customer over the year, including major event days (paler bars: the utility reported only the figure without major event days). Median across 6 Connecticut filings: 186.5 minutes with major event days, 63.1 without. EIA's state total: 153.6 and 73.1 minutes, with SAIFI of 0.88 interruptions per customer. Utilities use differing calculation methods, and a single storm can dominate a small utility's year.
| Year | Median SAIDI, all events | Median SAIDI, no major events | Filings | EIA state total, all events | EIA state total, no major events |
|---|---|---|---|---|---|
| 2024 | 186.4 | 63.1 | 6 | 153.6 | 73.1 |
| 2023 | 154.9 | 97.8 | 6 | 164.6 | 70.3 |
| 2022 | 85.2 | 56.2 | 6 | — | — |
| 2021 | 169.7 | 78.9 | 6 | — | — |
| 2020 | 712.6 | 49.2 | 6 | — | — |
| 2019 | 176.6 | 68.5 | 6 | — | — |
| 2018 | 280.8 | 70.0 | 6 | — | — |
| 2017 | 125.6 | 63.4 | 6 | — | — |
| 2016 | 91.8 | 80.1 | 6 | — | — |
| 2015 | 156.1 | 50.7 | 6 | — | — |
| 2014 | 63.0 | 63.0 | 6 | — | — |
| 2013 | 81.6 | 57.4 | 6 | — | — |
Sales by sector, 2024
| Sector | Sales | Share | ¢ per kWh |
|---|---|---|---|
| Residential | 12.9 TWh | 48% | 28.75¢ |
| Commercial | 11.7 TWh | 43% | 21.21¢ |
| Industrial | 2.6 TWh | 9% | 17.12¢ |
| All sectors | 27.4 TWh | 24.37¢ |
Residential sales per resident: 3,509 kWh a year, on a Census population estimate of 3,688,496.
Who serves Connecticut
| Ownership | Filings | Residential customers | Share | Median ¢ |
|---|---|---|---|---|
| Investor-owned utilities | 2 | 1,486,711 | 81% | 31.28¢ |
| Retail power marketers | 9 | 293,596 | 16% | — |
| Municipal utilities | 4 | 54,993 | 3% | 19.02¢ |
Customers as reported by each respondent. Where households buy energy from a retail supplier, the delivery utility and the supplier both report them, so shares describe filings, not households.
Counties
Each county page lists the utilities whose Form EIA-861 service territory includes it.
- Fairfield County 4
- Hartford County 2
- Litchfield County 1
- Middlesex County 1
- New Haven County 3
- New London County 6
- Tolland County 1
- Windham County 1
Questions and answers
What is the average electricity price in Connecticut?
28.75¢ per kilowatthour for residential customers in 2024, against a US average of 16.48¢. Commercial customers averaged 21.21¢ and industrial customers 17.12¢. The latest monthly residential figure is 24.16¢ for July 2026 (preliminary).
What is the average electric bill in Connecticut?
$199.66 a month for residential customers in 2024, on average use of 695 kWh a month. The US average was $142.26 on 863 kWh.
Is electricity getting more expensive in Connecticut?
The average residential price was down 3.8% in 2024 on the year before and up 31.5% on 2019. These are nominal prices, not adjusted for inflation.
How reliable is electric service in Connecticut?
EIA's state total for 2024 is 153.6 minutes of interruption per customer including major event days and 73.1 minutes excluding them, across utilities reporting under any method. The median utility in the state reported 186.5 minutes including major event days.
How many electric utilities serve Connecticut?
15 respondents reported residential customers in Connecticut on the full Form EIA-861 for 2024; 6 of them have a bundled residential price. Another 4 small utilities filed the short form. 8 counties appear in service territories.
Provenance
Source: U.S. Energy Information Administration. State averages, sales and customers by year and month: Form EIA-861M sales and revenue workbook, through July 2026. Utility rows, reliability and service territories: Form EIA-861, 2024 final release. Population: U.S. Census Bureau Vintage 2025 estimates. Public domain. See methodology.