Connecticut electricity rates (August 2026)

Average residential and commercial electricity prices in Connecticut from EIA's monthly utility survey, with the trend, the largest utilities and what power costs a typical homeowner.

Residential rate

24.51¢

▼ 18.8% vs a year agoper kWh, August 2026; ranks 11 of 51 (1 = highest)

Commercial rate

19.29¢

per kWh, August 2026

Average home bill

$193

per month over the last 12 months, about 702 kWh

U.S. residential average

18.16¢

Connecticut is 35% above the U.S. average.

Find your utility's rate by ZIP

Connecticut vs U.S. residential rate

Cents per kWh by month, last 36 months.

Last 12 months in Connecticut

Month	Residential	Commercial	U.S. residential	Avg kWh	Avg bill
August 2026	24.51¢	19.29¢	18.16¢	834	$204
July 2026	24.16¢	19.87¢	18.31¢	918	$222
June 2026	24.32¢	19.60¢	18.34¢	716	$174
May 2026	27.37¢	21.35¢	18.44¢	534	$146
April 2026	32.24¢	23.55¢	18.86¢	535	$172
March 2026	30.45¢	23.77¢	18.60¢	664	$202
February 2026	30.77¢	24.59¢	17.65¢	790	$243
January 2026	28.30¢	23.16¢	17.45¢	867	$245
December 2025	25.24¢	22.06¢	17.11¢	861	$217
November 2025	26.97¢	21.05¢	17.77¢	615	$166
October 2025	27.66¢	21.42¢	17.95¢	524	$145
September 2025	30.41¢	21.75¢	18.05¢	570	$173

Largest utilities in Connecticut

Residential rates for the biggest utilities in Connecticut that report monthly to EIA, ordered by number of homes served, for August 2026.

Utility	Type	Rate	Avg kWh	Avg bill	Homes
Connecticut Light & Power Co	Investor Owned	23.94¢	788	$189	1,038,642
United Illuminating Co	Investor Owned	28.27¢	703	$199	270,340
Town of Wallingford - (CT)	Municipal	19.25¢	1,168	$225	21,453
Groton Dept of Utilities - (CT)	Municipal	21.08¢	842	$177	12,596

What electricity adds to owning a home in Connecticut

A typical Connecticut home is valued at $447,319 (Zillow). With 10% down at this week's 7.24% 30-year rate, principal and interest come to about $2,744 a month. The average electric bill of $193 adds about 7% on top of that, or $2,311 a year. See Connecticut property tax and closing costs or run the monthly payment.

Bills follow the seasons: in Connecticut the highest-use month of the last year averaged 918 kWh per home and the lowest 524 kWh. Budget for the expensive months, not the average.

Common questions

What is the average electricity rate in Connecticut?

Homes in Connecticut paid an average of 24.51 cents per kWh in August 2026, 35% above the U.S. average of 18.16 cents (EIA Form 861M).

How much is the average electric bill in Connecticut?

Over the last 12 months the average Connecticut home used about 702 kWh a month and paid about $193 a month.

Have Connecticut electricity rates gone up?

The residential rate is 18.8% lower than in August 2025, when it was 30.17 cents per kWh.

What do businesses pay for electricity in Connecticut?

Commercial customers in Connecticut paid 19.29 cents per kWh in August 2026.

Electricity rates in all statesRanked table and ZIP lookup Connecticut buying costsProperty tax, transfer tax and closing costs Connecticut buyer programsDown payment help where you live

Sources: U.S. Energy Information Administration (EIA), Form EIA-861M monthly sales and revenue (state and utility data, latest month August 2026; EIA marks recent months preliminary and may revise them); ZIP-to-utility map: OpenEI, U.S. Electric Utility Companies and Rates: Look-up by Zip Code (2024), CC BY 4.0. Rates are average revenue per kWh (total bill divided by kWh sold), so they include fixed and delivery charges. EIA posts each month about eight weeks after it ends; this page checks for new data every morning.