EIA data through August 2026 · updated 2026-10-29

Groton Dept of Utilities (CT) electricity rates

Groton Dept of Utilities (CT) (municipal) residential customers paid about 20.1¢ per kWh (Jan–Aug 2026) — an average bill of $134 for 715 kWh a month.

Avg. home price20.1¢per kWh
Residential customers12,284CT, 2024
Avg. monthly use715kWh
Commercial18.0¢per kWh
Industrial13.5¢per kWh
Connecticut has retail electricity choice. Many households can buy electricity supply from a competing supplier, while the local utility still delivers it. The averages here combine utility and supplier sales as reported to the EIA; your state’s public utility commission lists licensed suppliers.

What a month costs with Groton Dept of Utilities (CT)

500 kWh / month$100
700 kWh / month · avg. use$140
900 kWh / month$180
1,200 kWh / month$241

Monthly cost at the average price of 20.1¢ per kWh. Real bills add or subtract fixed charges, tiers, time-of-use and fuel adjustments.

Price trend

12¢17¢22¢27¢32¢20222023202420252026Connecticut averageU.S. averageGroton Dept of Utilities (CT) 12¢17¢22¢27¢32¢20222023202420252026Connecticut averageU.S. averageGroton Dept of Utilities (CT)
Connecticut averageU.S. averageGroton Dept of Utilities (CT)
Aug 202624.5¢per kWh
vs. 1 year ago-18.8%30.2¢
vs. 5 years ago+17.8%20.8¢
Record high34.5¢Apr 2023
Avg. home bill$204834 kWh, Aug
EIA forecast, New England30.5¢Dec 2027

Hover or tap the chart for exact monthly values. Source: EIA-861M (monthly, latest months preliminary); forecast: EIA Short-Term Energy Outlook (October 2026) for the New England region, which includes Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont.

ZIP codes served

06249Lebanon06254North Franklin06320New London06330Baltic06333East Lyme06334Bozrah06335Gales Ferry06336Gilman06338Mashantucket06339Ledyard06340Groton06350Hanover06351Jewett City06355Mystic06357Niantic06359North Stonington06360Norwich06365Preston06370Oakdale06371Old Lyme06375Quaker Hill06376South Lyme06378Stonington06379Pawcatuck06380Taftville06382Uncasville06384Voluntown06385Waterford06389Yantic06415Colchester06420Salem06439Hadlyme

Averages, not a quote. Prices here are what each utility’s residential customers paid on average (revenue ÷ kWh sold, fixed charges included), as reported to the U.S. Energy Information Administration. Your own rate depends on your plan, season and usage — check your bill or your utility’s tariff.

Questions

What is Groton Dept of Utilities (CT)’s electricity rate?

About 20.1¢ per kWh for residential customers (Jan–Aug 2026 average, EIA-861M), including fixed charges spread over usage.

What is the average Groton Dept of Utilities (CT) electric bill?

$134 a month in 2024, for an average of 715 kWh (EIA-861).

Is Groton Dept of Utilities (CT) cheaper than the Connecticut average?

Yes: 20.1¢ versus the Connecticut average of 24.5¢ (Aug 2026).