Electricity in New London County, Connecticut
4 electric utilities serve homes in New London County, Connecticut: Eversource (Connecticut), City of Norwich, Groton Department of Utilities and Bozrah Light & Power. In 2025, the average home bill of these utilities was $133.62 (Groton Department of Utilities) to $195.35 (Eversource (Connecticut)) a month. This page covers 2 cities with 25,000 or more people in the county, from Norwich to New London.
- 2 cities
- 4 utilities
- EIA and Census data, 2025
Electric utilities in New London County
EIA lists utilities by county, not by address. Your address has one utility: its name is on your bill, or type your ZIP code in the utility finder.
| Utility | Homes in Connecticut | Average bill 2025 | 1,000 kWh now |
|---|---|---|---|
| Eversource (Connecticut)Investor-owned utility · bill calculator | 1,193,581 | $195.35676 kWh, 28.9¢ | $245.64 |
| City of NorwichCity utility | 18,967 | $147.77633 kWh, 23.4¢ | — |
| Groton Department of UtilitiesCity utility | 12,596 | $133.62740 kWh, 18.1¢ | — |
| Bozrah Light & PowerCity utility | 2,440 | $169.33857 kWh, 19.8¢ | — |
2 smaller utilities with fewer than 1,000 homes are also listed in the county. The average bill is the 2025 average of each utility's homes that bought their power from it (EIA-861). The Connecticut average was $206.46 a month.
Cities in New London County
| City | People | City-owned utility | Solar kWh a year per kW |
|---|---|---|---|
| Norwich | 40,001 | City of Norwich | 1,309 |
| New London | 28,003 | — | 1,306 |
A city-owned utility is a municipal utility in the county with the city's name (EIA data). Solar output: PVWatts version 8 for a south-facing roof; see the solar savings calculator.
More about Connecticut: Connecticut electric rates, all Connecticut utilities, home energy rebates and natural gas bills.
Who provides electricity in New London County?
4 electric utilities serve homes in New London County, Connecticut: Eversource (Connecticut), City of Norwich, Groton Department of Utilities and Bozrah Light & Power. The name of your utility is on your bill.
Which cities in New London County are on this page?
Norwich and New London.
Sources: EIA-861 data, 2025 (utilities by county, homes and average bills); Census Bureau city population estimates, Vintage 2025; PVWatts (National Laboratory of the Rockies).