Groton Dept of Utilities electric rates
Updated October 7, 2026 · Source: EIA Form 861 (2024)
Municipal utility serving 12,284 homes in Connecticut.
Your rate
Connecticut is a retail-choice state: this utility's rate case sets the delivery part of your bill. The supply part comes from your chosen supplier or the default service rate.
Estimate your bill
It's on your bill, usually near the top. Starting at 715 kWh, the average for Groton Dept of Utilities homes.
This is an estimate. Uses the EIA average rate with a nominal $12 fixed charge; real tariffs have tiers, time-of-use pricing and riders. Your bill also includes taxes and fuel adjustments that change month to month.
Rate cases
No rate case on file for Groton Dept of Utilities right now. We check regulator dockets weekly; last check October 7, 2026. Know of one?
Rate history
Groton Dept of Utilities's average rate is up 17% since 2020, versus +28% for the U.S. average.
Average residential revenue per kWh, EIA-861. Includes delivery and, where the utility sells it, supply.
Rebates for heat pumps, batteries and EV chargers
We haven't found utility-level rebates for Groton Dept of Utilities yet. Check Connecticut programs or read what's left after the federal credits ended.
About Groton Dept of Utilities
- Ownership
- Municipal
- Homes served
- 12,284 residential customers (2024)
- Grid operator
- ISNE
- Retail choice
- Yes — you can pick a supplier for the energy portion
- Data
- EIA-861 2024, released October 7, 2026; rate cases checked October 7, 2026
Other utilities in Connecticut
- Eversource Connecticut 25.31¢
- United Illuminating 31.06¢
- Town of Wallingford 15.65¢
- City of Norwich 22.78¢