Groton Dept of Utilities (CT) Electricity Rate per kWh (2024 EIA Data)

Groton Dept of Utilities (CT) is a municipally owned electric utility that reports to the U.S. Energy Information Administration under utility number 7716. In 2024 it served 12,284 bundled residential customers in Connecticut, and its average realised residential price was 18.70 cents per kWh: $20 million of residential revenue divided by 105,354 MWh of residential sales.

Across the other sectors, Groton Dept of Utilities (CT)'s 2024 average prices were 17.98 cents for commercial customers (1,588 accounts) and 13.54 cents for industrial customers (17 accounts). Industrial customers paid 5.16 cents less per kWh than households, a 28% discount that is typical of high-volume, high-voltage service.

Within Connecticut, Groton Dept of Utilities (CT) ranked number 5 of 6 utilities with bundled or delivery service by residential accounts served (12,284) and accounted for 0.81% of the state's residential electricity sales in 2024, measured in MWh sold or delivered rather than in customers. The state-wide average realised residential price in 2024, computed from the same EIA file, was 28.75 cents per kWh, so Groton Dept of Utilities (CT)'s customers paid 10.05 cents below the Connecticut average (-35.0%). For context, EIA's latest monthly figure for Connecticut is 24.32 cents per kWh (June 2026, Electric Power Monthly); that is a different, more recent measure across all utilities and is not directly comparable with a 2024 annual average.

EIA's service-territory file places Groton Dept of Utilities (CT) in 1 Connecticut county: New London. On the grid side it operates in the NPCC NERC region and the ISO New England market, and reported distribution and bundled as its activities. Balancing authority code: ISNE.

EIA's preliminary 2025 early release (published 4 August 2026) shows a residential price of 18.05 cents per kWh for Groton Dept of Utilities (CT) in Connecticut across 12,596 residential customers, 0.65 cents lower than the 2024 final figure. Early-release data has not been validated by EIA and must not be aggregated; the 2024 final figures remain the reference on this page until the 2025 final file is published.

Comparable Connecticut utilities of similar size include City of Norwich (CT) (18,870 residential accounts served, 22.78 cents), Town of Wallingford (CT) (21,405 residential accounts served, 15.65 cents), MP2 Energy LLC (39,395 residential accounts served, 14.65 cents), Bozrah Light & Power Company (2,434 residential accounts served, 19.33 cents), and Champion Energy Services (225,587 residential accounts served, 9.98 cents).