State electricity profile · 2024
Connecticut Electricity
Connecticut's residential electricity rate is 28.75¢/kWh, 74.5% above the US average. Keep scrolling for the commercial and industrial breakdown and generation mix, per EIA filings.
- 28.75¢/kWh
- Residential rate
- +74.5%
- vs US average
- 6%
- Renewable
- 1.6M
- Customers
Verify with EIA → · Methodology
The verdict · 2024
Connecticut's residential electricity runs 28.75¢/kWh - 74.5% above the 16.48¢/kWh national average, pricier than 94% of states, with 6% of its power from renewables.
Rate is the EIA state average across all 1.6M residential customers, a benchmark for comparing states, not the rate on any single bill. Source: EIA Form-861.
What Connecticut's Electricity Data Tells Us
Households in Connecticut are billed 28.75¢/kWh on average for residential power, per 2024 EIA data, reaching 1.6M metered households, landing 74.5% above the national residential average, 16.48¢/kWh. Commercial rates sit at 21.21¢/kWh while industrial-sector power is priced at 17.12¢/kWh, reflecting the cost differentials that come from voltage level, load factor, and contract length across EIA Form-861 survey respondents. 12.9M MWh of residential power was sold over the year, translating to roughly $3.7B in revenue for utilities, a useful yardstick for sizing local demand against the grid mix that serves it.
The single largest fuel source in Connecticut is natural gas, responsible for 56.6% of what's generated in-state, backed up by nuclear at 36.7%, and solar rounding out the top three at 4.2%. Tally solar, wind, hydro, geothermal, and biomass together and renewables reach 5.8% of Connecticut's generation, a figure that matters because each renewable megawatt-hour displaces fuel costs that otherwise flow through to retail bills. Legacy fuels still dominate here, which tends to tie retail rates to commodity cycles.
Looking back across EIA records, residential prices in Connecticut moved from 20.01¢/kWh in 2016 to 28.75¢/kWh in 2024, a 43.7% shift over that window. States charging a similar rate include Rhode Island, Massachusetts, California, a useful peer set for a sanity check. For anyone negotiating a supplier contract, weighing an energy-efficiency upgrade, or modeling a household budget, the combination of current rate, multi-year trend, and generation mix offers a sturdier footing than any single data point on its own.
+74.5%
vs the US residential average
6%
of states have higher residential rates
6%
renewable share, below the US mix
1.6M
residential customers served
How Connecticut compares
Cents per kWh, EIA Form 861. Pick a benchmark above to compare Connecticut against the US average or a peer state.
Residential Price History
| Year | Price | Change |
|---|---|---|
| 2024 | 28.75¢/kWh | -3.8% |
| 2023 | 29.88¢/kWh | +21.4% |
| 2022 | 24.61¢/kWh | +12.3% |
| 2021 | 21.91¢/kWh | -3.5% |
| 2020 | 22.71¢/kWh | +3.8% |
| 2019 | 21.87¢/kWh | +3.2% |
| 2018 | 21.20¢/kWh | +4.5% |
| 2017 | 20.29¢/kWh | +1.4% |
| 2016 | 20.01¢/kWh | - |
Energy Generation Mix
How Connecticut generates its electricity. Renewable sources account for 5.8% of generation.
- Natural Gas56.6%
- Nuclear36.7%
- Solarrenewable4.2%
- Other0.9%
- Hydrorenewable0.8%
- Biomassrenewable0.8%
Market Overview
Residential Revenue
$3.7B
Commercial Revenue
$2.5B
Residential Sales
12.9M MWh
Residential Customers
1.6M
Frequently Asked Questions
How much does electricity cost in Connecticut? ▼
How much of Connecticut's electricity is renewable? ▼
Are electricity prices going up in Connecticut? ▼
What are commercial and industrial electricity rates in Connecticut? ▼
What is the cheapest energy source in Connecticut? ▼
Where does RateWatt's Connecticut electricity data come from? ▼
States with Similar Electricity Prices
Using Connecticut's numbers
This is the state average, use it as a benchmark, not a quote for your address.
- Connecticut sits 74.5% above the national average, see exactly where it lands among all 50 states. See the rankings
- Check the multi-year trend before you judge the rate, a low price rising fast can cost more over a decade than a steady one. Connecticut price trend
- Compare Connecticut side by side with the US average and peer states using the tool above, then estimate your own bill from your monthly kWh. Cost calculator
Figures are EIA state averages by sector. Your actual rate depends on your utility, plan, and usage, see our disclaimer.
Energy Guides
Understanding Electricity Rates
What ¢/kWh means and how your bill is calculated
Why Prices Vary by State
Generation mix, regulation, and geography
US Energy Sources Explained
How each fuel source powers the grid
Renewable vs Fossil Fuel Costs
LCOE comparison and the cost crossover
Cheapest States for Electricity
Which states pay the least and why
Primary source data for Connecticut
Every figure on this page traces to these official federal datasets.
- 📊 EIA State Energy Profile, Connecticut State energy database
- ⚡ EIA Electric Power Monthly Generation and price statistics
- 🌿 EPA eGRID Power-grid emissions database
- ☀️ NREL solar resource maps Solar potential by location
- 💨 NREL wind resource maps Wind potential by location
- ⚛️ NRC reactor data Nuclear operating status
- ⚡ FERC market data Transmission and market prices
- 🏛️ NARUC commissions State public utility commissions
- 📖 EIA energy mapping system Interactive federal energy map
Related
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Energy Information Administration (EIA). Consult a qualified professional before making decisions based on this data.
Every figure on RateWatt is rendered directly from official U.S. Energy Information Administration (EIA) data, no number is typed in by an editor. State prices and generation mix are pulled directly from the EIA's published tables for this state. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-15.