Rates by state / Connecticut / Groton Dept of Utilities - (CT)
Municipal · 12,596 residential customers
Groton Dept of Utilities - (CT) electricity rates
Residential customers paid an average of 18.1¢ per kWh in 2025, 36% below the Connecticut average of 28.0¢ for the latest 12 months.
Average rate
18.1¢/kWh
2025, all residential revenue ÷ kWh
Average bill
$134/mo
At 740 kWh a month
1-year change
-3.5%
5 years: +13.1%
Average rate by year
202016.0¢
202115.9¢
202217.7¢
202320.1¢
202418.7¢
202518.1¢
Groton Dept of Utilities - (CT) bill at different usage levels
Estimated monthly bill at Groton Dept of Utilities - (CT)'s 2025 average rate of 18.1¢ per kWh. Actual bills vary with your plan, fixed charges and taxes.
| Monthly use | Groton Dept of Utilities - (CT) | Connecticut average |
|---|---|---|
| 500 kWh | $90 | $140 |
| 750 kWh (about average here) | $135 | $210 |
| 1,000 kWh | $181 | $280 |
| 1,500 kWh | $271 | $420 |
| 2,000 kWh | $361 | $560 |
Other utilities in Connecticut
| Utility | Customers | Rate |
|---|---|---|
| Connecticut Light & Power Co | 1,193,581 | 28.9¢ |
| United Illuminating Co | 314,909 | 35.4¢ |
| Constellation NewEnergy, Inc | 107,124 | 30.8¢ |
| Town Square Energy | 49,819 | 30.9¢ |
| Direct Energy Services | 37,918 | 30.0¢ |
| Think Energy, LLC | 28,746 | 30.5¢ |
| Town of Wallingford - (CT) | 21,426 | 17.8¢ |
| City of Norwich - (CT) | 18,967 | 23.4¢ |
Groton Dept of Utilities - (CT): common questions
- How much does Groton Dept of Utilities - (CT) charge per kWh?
- Groton Dept of Utilities - (CT) residential customers paid an average of 18.1¢ per kWh in 2025, counting all charges, according to EIA Form 861 data.
- What is the average Groton Dept of Utilities - (CT) electric bill?
- The average Groton Dept of Utilities - (CT) household used 740 kWh a month in 2025, which works out to about $134 a month at the average rate.
- Is Groton Dept of Utilities - (CT) cheaper than other utilities in Connecticut?
- Groton Dept of Utilities - (CT)'s average rate is 36% below the Connecticut average of 28.0¢. 1 of 15 utilities in Connecticut have a lower average rate.
- Did Groton Dept of Utilities - (CT) raise rates?
- Groton Dept of Utilities - (CT)'s average residential rate changed -3.5% from 2024 to 2025 and +13.1% since 2020.
- Is my Groton Dept of Utilities - (CT) bill too high?
- Enter the kWh and amount from your bill in the free bill check on AverageElectricBill.com. It compares your use with similar Connecticut homes and your rate with Groton Dept of Utilities - (CT)'s average.
Got a Groton Dept of Utilities - (CT) bill?
Check my billSource: U.S. EIA Form EIA-861, 2025 final data.