Connecticut
Electricity costs 29.38¢/kWh residential, ranking #47 cheapest in the US. 3.1% renewable energy.
29.38¢
Residential Rate
#47
Price Rank (Cheapest)
3.1%
Renewable Energy
#51
Renewable Rank
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Electricity Rates
| Residential | 29.38¢/kWh |
| Commercial | 23.11¢/kWh |
| Industrial | 18.35¢/kWh |
| National Average | 17.92¢/kWh |
Electricity Generation Mix
Natural Gas
58.2%
Nuclear
37.7%
Other
2.2%
Solar
1.1%
Hydro
0.8%
Frequently Asked Questions
The residential electricity rate in Connecticut is 29.38¢ per kilowatt-hour, ranking #47 cheapest out of 51 states. The national average is 17.92¢/kWh, making Connecticut 64% above average.
3.1% of Connecticut's electricity comes from renewable sources, ranking #51 among all states. The largest generation source is Natural Gas at 58.2%.
Connecticut's residential rate of 29.38¢/kWh is 64% above the national average of 17.92¢/kWh. Commercial rates are 23.11¢/kWh and industrial rates are 18.35¢/kWh.
Related State Energy Profiles
26.09¢/kWh residential · 28.2% renewable
26.39¢/kWh residential · 30.0% renewable
27.78¢/kWh residential · 53.8% renewable
29.46¢/kWh residential · 10.0% renewable
30.48¢/kWh residential · 19.6% renewable
22.92¢/kWh residential · 99.8% renewable
Electricity rates from EIA retail sales data. Prices in cents per kilowatt-hour. Generation mix from EIA electric power operational data. Rankings based on residential rates.
At 29.38¢/kWh, residential electricity in Connecticut is 64% above the U.S. average of 17.92¢/kWh — the 5th most expensive residential rate among 51 states and territories.
Across rate classes, commercial customers pay 23.11¢/kWh and industrial customers 18.35¢/kWh — a 4.76¢/kWh gap that reflects the volume discounts large industrial loads receive. Renewables supply 3.1% of generation in Connecticut, where natural gas dominates the mix at 58.2%, followed by nuclear at 37.7%.
In 2024, Connecticut generated about 44,761 GWh of electricity in total.
Source: U.S. Energy Information Administration, 2026.