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

United Illuminating Co. electricity rates

United Illuminating Co. (investor owned) residential customers paid about 32.9¢ per kWh (Jan–Aug 2026) — an average bill of $185 for 543 kWh a month.

Avg. home price32.9¢per kWh
Residential customers312,291CT, 2024
Avg. monthly use543kWh
Commercial14.7¢per kWh
Industrial11.0¢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 United Illuminating Co.

500 kWh / month$164
900 kWh / month$296
1,200 kWh / month$394

Monthly cost at the average price of 32.9¢ per kWh. Real bills add or subtract fixed charges, tiers, time-of-use and fuel adjustments.

Price trend

12¢18¢24¢30¢36¢20222023202420252026Connecticut averageU.S. averageUnited Illuminating Co. 12¢18¢24¢30¢36¢20222023202420252026Connecticut averageU.S. averageUnited Illuminating Co.
Connecticut averageU.S. averageUnited Illuminating Co.
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

06401Ansonia06403Beacon Falls06405Branford06410Cheshire06418Derby06422Durham06437Guilford06443Madison06450Meriden06451Meriden06455Middlefield06460Milford06461Milford06468Monroe06470Newtown06471North Branford06472Northford06473North Haven06477Orange06478Oxford06482Sandy Hook06483Seymour06484Shelton06488Southbury06492Wallingford06494Wallingford06495Wallingford06501New Haven06502New Haven06503New Haven06504New Haven06505New Haven06506New Haven06507New Haven06508New Haven06509New Haven06510New Haven06511New Haven06512New Haven06513New Haven06514Hamden06515New Haven06516West Haven06517Hamden06518Hamden06519New Haven06520New Haven06521New Haven06524Bethany06525New Haven06530New Haven06531New Haven06532New Haven06533New Haven06534New Haven06535New Haven06536New Haven06537New Haven06538New Haven06540New Haven06601Bridgeport06602Bridgeport06604Bridgeport06605Bridgeport06606Bridgeport06607Bridgeport06608Bridgeport06610Bridgeport06611Trumbull06612Easton06614Stratford06615Stratford06673Bridgeport06699Bridgeport06702Waterbury06704Waterbury06705Waterbury06706Waterbury06708Waterbury06710Waterbury06712Prospect06716Wolcott06762Middlebury06770Naugatuck06784Sherman06801Bethel06804Brookfield06807Cos Cob06810Danbury06811Danbury06812New Fairfield06820Darien06824Fairfield06825Fairfield06828Fairfield06830Greenwich06831Greenwich06840New Canaan06850Norwalk06851Norwalk06853Norwalk06854Norwalk06855Norwalk06870Old Greenwich06875Redding Center06877Ridgefield06878Riverside06880Westport06883Weston06890Southport06896Redding06897Wilton06901Stamford06902Stamford06903Stamford06905Stamford06906Stamford06907Stamford

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 United Illuminating Co.’s electricity rate?

About 32.9¢ per kWh for residential customers (Jan–Aug 2026 average, EIA-861M), including fixed charges spread over usage.

What is the average United Illuminating Co. electric bill?

$185 a month in 2024, for an average of 543 kWh (EIA-861).

Is United Illuminating Co. cheaper than the Connecticut average?

No: 32.9¢ versus the Connecticut average of 24.5¢ (Aug 2026).