States › Connecticut › Fairfield County
Electric utilities serving Fairfield County, Connecticut
Utilities that list the county in their Form EIA-861 service territory for 2024, with each one's average price, bill and outage minutes.
Fairfield County, Connecticut, appears in the Form EIA-861 service territory of 4 utilities for 2024; Connecticut Light & Power Co, United Illuminating Co and City of South Norwalk are the largest by residential customers statewide.
Their average residential prices ran from 28.51¢ to 34.04¢ per kilowatthour, with a median of 31.28¢, against a Connecticut average of 28.75¢ and a US average of 16.48¢. Each price is the utility's figure for all of its Connecticut customers, not for this county alone.
The median SAIDI they reported was 140.3 minutes per customer including major event days; the median among all Connecticut utilities reporting was 186.5.
EIA does not publish customers by county, so which utility serves a given address has to be confirmed with the utility or the state utility commission.
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. Figures are for each utility's whole Connecticut operation; EIA publishes nothing at county level.
Utilities and their 2024 figures
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| Connecticut Light & Power Co | Investor-owned | 1,174,420 | 28.51¢ | $187.10 | 158.8 | 76.9 |
| United Illuminating Co | Investor-owned | 312,291 | 34.04¢ | $184.69 | 121.8 | 49.2 |
| City of South Norwalk short form | Municipal | 7,428 | — | — | — | — |
| Norwalk Third Taxing District short form | Municipal | 4,104 | — | — | — | — |
Ordered by residential customers in Connecticut. Short-form filers are small utilities that report only totals to EIA, so no residential price is available; their all-sector revenue per kWh was City of South Norwalk 18.77¢, Norwalk Third Taxing District 17.43¢. A utility with no customers shown reported its retail sales elsewhere or delivers power that other companies bill for.
Against the state and the country
| Measure, 2024 | Utilities listing Fairfield County | Connecticut | United States |
|---|---|---|---|
| Average residential price per kWh | 31.28¢ median | 28.75¢ | 16.48¢ |
| Average monthly residential bill | $185.90 median | $199.66 | $142.26 |
| SAIDI, all events (minutes) | 140.3 median | 186.5 median | 184.5 median |
| SAIDI, without major event days | 63.1 median | 63.1 median | 99.8 median |
| Utilities counted | 4 | 15 | 1,413 |
Outage minutes reported
SAIDI for 2024 across each utility's whole system, including major event days (paler bars: only the figure without major event days was reported). Not a measure of outages in Fairfield County itself.
Other Connecticut counties
- Hartford County 2
- Litchfield County 1
- Middlesex County 1
- New Haven County 3
- New London County 6
- Tolland County 1
All 8 counties and every Connecticut utility
Questions and answers
Who provides electricity in Fairfield County?
Connecticut Light & Power Co, United Illuminating Co, City of South Norwalk and Norwalk Third Taxing District list the county in their Form EIA-861 service territory for 2024. Territories overlap, and a utility may cover only a corner of the county.
What is the electricity price in Fairfield County?
EIA has no county-level prices. The utilities serving the county reported average residential prices of 28.51¢ to 34.04¢ per kilowatthour across their Connecticut customers in 2024; the state average was 28.75¢.
How reliable is power in Fairfield County?
Reliability is reported per utility, not per county. The utilities listed reported a median of 140.3 minutes of interruption per customer in 2024 including major event days and 63.1 minutes excluding them.
Provenance
Source: U.S. Energy Information Administration, Form EIA-861 for 2024, final release: service territory file (counties by utility), sales to ultimate customers, reliability and short form files. State and US averages: Form EIA-861M workbook. Population: U.S. Census Bureau. Public domain. To confirm the utility at an address, ask the utility or the state utility commission.