Energy Calculators

Electricity rates in Connecticut

The average residential electricity price in Connecticut was 24.51¢/kWh in August 2026, 35.0% above the U.S. average of 18.16¢/kWh (EIA).

Average price (Aug 2026)
24.51¢/kWh
Change vs Aug 2025
−18.8%−5.66¢/kWh
Rank (1 = most expensive)
11thof 51
vs U.S. average
+35.0%+6.35¢/kWh

Connecticut residential electricity price, last 12 months

Connecticut vs U.S. average residential electricity price, last 12 monthsConnecticut: 30.4¢ in Sep 2025, 24.5¢ in Aug 2026. Low 24.2¢, high 32.2¢.15.0¢20.0¢25.0¢30.0¢35.0¢Nov 2025Feb 2026May 2026Aug 2026
· cents per kWh
Show data table
MonthConnecticutU.S. average
Aug 202624.5¢18.2¢
Jul 202624.2¢18.3¢
Jun 202624.3¢18.4¢
May 202627.4¢18.4¢
Apr 202632.2¢18.9¢
Mar 202630.4¢18.6¢
Feb 202630.8¢17.6¢
Jan 202628.3¢17.4¢
Dec 202525.2¢17.1¢
Nov 202527.0¢17.8¢
Oct 202527.7¢17.9¢
Sep 202530.4¢18.1¢

Source: U.S. Energy Information Administration (Aug 2026). Retrieved November 5, 2026. About our data

What common appliances cost to run in Connecticut

Worked examples at 24.51¢/kWh, the August 2026 average:

  • Running a 1,500 W space heater 6 hours a day for 30 days uses 270 kWh and costs about $66.18.
  • Running a 3,500 W central air conditioner 8 hours a day for 30 days uses 840 kWh and costs about $205.88.
  • Running a refrigerator using 500 kWh per year uses 500 kWh and costs about $122.55 a year.

Try your own appliance in the appliance cost calculator.

Typical monthly use and bill

Connecticut residential customers used an average of 704 kWh a month in 2025 (EIA annual data). At 24.51¢/kWh, that works out to about $172.55 a month.

States with similar prices

Compare all 50 states and DC

Frequently asked questions

Is electricity expensive in Connecticut?

Connecticut ranked 11th most expensive of 51 (50 states and DC) in August 2026, at 24.51¢/kWh versus the U.S. average of 18.16¢/kWh.

How have Connecticut electricity prices changed over the past year?

The average residential price fell from 30.17¢/kWh in August 2025 to 24.51¢/kWh in August 2026, a change of −18.8%.

What is a typical electric bill in Connecticut?

Residential customers in Connecticut used an average of 704 kWh a month in 2025. At 24.51¢/kWh that is about $172.55 a month. Use the electric bill calculator for your own usage.

Why might my Connecticut rate differ from this average?

The state average blends every utility, rate plan and fixed charge in the state. Utilities, co-ops and municipal providers set different tariffs, and time-of-use or tiered plans change the price of each kWh. Divide your bill total by your kWh for your own average rate.

Data last updated: