2025 Residential
29.38¢/kWh
+69.8% vs US avg
Connecticut residential electricity costs 29.38¢/kWh in 2025
According to the U.S. Energy Information Administration retail-sales series (2025 annual frequency), residential electricity in Connecticut costs 29.38¢/kWh, 69.8% above the national average. Since 2016, the rate has changed +46.8%.
Where Connecticut sits: according to EIA's annual retail-sales series, its residential rate changed +46.8% between 2016 and 2025, the 8th steepest of 51 jurisdictions (the 50 states and the District of Columbia), a steeper move than 86% of the other 50. Ranked on the same 2016 to 2025 window for every state; see the methodology.
Trajectory peers
Which states followed a similar residential price path?
Each state begins at an index of 100 in 2016; the comparison then measures how closely its annual path follows Connecticut through 2025. This compares the shape of the EIA series, not the price level, and does not claim that two states share the same market or causes.
Closest path shapes
Nearest matches after each state starts at an index of 100
- Rhode Island +58.2% since 2016
- Texas +40.8% since 2016
- Florida +38.8% since 2016
- New York +50.1% since 2016
- Massachusetts +60.4% since 2016
- New Hampshire +33.6% since 2016
- Indiana +37.7% since 2016
- Mississippi +34.0% since 2016
Other steeper paths
Nearest unused states with a larger 2016–2025 rise
- District of Columbia +78.5% since 2016
- Hawaii +47.8% since 2016
- Maine +75.5% since 2016
- California +87.1% since 2016
Calculated from 51 jurisdictions covering the complete 2016–2025 annual window. Directional lists exclude states already shown as the closest matches, so every name appears once.
Reading the Connecticut Price Trend
According to the U.S. Energy Information Administration's retail-sales series, RateWatt currently holds 2,040 annual state-sector records spanning 2016 through 2025. These are statewide annual averages, not individual utility quotes. See the methodology for source scope and refresh cadence.
Connecticut residential electricity moved from 20.01¢/kWh in 2016 to 29.38¢/kWh in 2025, a cumulative change of +46.8% over 10 reporting years. The more recent five-year window changed +29.4% since 2020; comparing the two windows describes whether the pace changed, but does not establish why. Against the national residential benchmark of 17.30¢/kWh, Connecticut now sits 69.8% above the U.S. average for 2025.
Commercial customers in Connecticut paid 23.11¢/kWh in 2025, while industrial customers paid 18.35¢/kWh. Sector differences can reflect customer mix, consumption volume, tariff design, and cost allocation; this statewide series does not identify which factor drives a state's gap. Here the residential-to-industrial multiplier is about 1.6x, one descriptive benchmark for comparison with peer states.
EIA reports 8 generation sources for Connecticut; ranked by share of generation they run natural gas, nuclear, solar, other, biomass. Of the 11 sources EIA reports somewhere in the country, Connecticut records no generation from coal, geothermal or pumped storage. That is an absence in the published series, not a statement that no such capacity exists. This price series and that generation series are published separately and are not joined here, so nothing on this page attributes a price movement to a fuel mix. Adjacent entries in the alphabetical state browser are Colorado and Delaware; their pages carry the same series on the same basis. EIA publishes the annual series once per year and revises prior years without renumbering them, so a figure here can change when a later release restates it.
Within the year, February is the costliest month on average
The annual averages above smooth over a repeating within-year pattern. Across EIA's monthly series, Connecticut's residential rate averages about 32.36¢/kWh in February and about 26.77¢/kWh in December, a 18.9% spread around the monthly mean. 24 of the 51 states with a full monthly record sit in this ten-to-twenty percent band. The monthly and annual series summarize the same retail-sales activity at different frequencies; the annual price is revenue divided by sales for the full year, not the arithmetic mean of twelve monthly price ratios.
Within-year profile computed from 36 monthly observations across 3 complete calendar years in EIA's residential series (monthly data begins 2023-01). Partial calendar years are excluded so a newer partial tail cannot bias January–May against later months. Peak and trough are the highest and lowest month averages across that record, not a forecast; the spread is quoted against this state's own monthly mean.
How often the rate has actually fallen
Connecticut's rate has fallen in 2 of the 9 year-on-year steps on record, the most common pattern among states. The steepest of those falls came in 2024, at 1.13¢.
One of the steadiest price paths in the country
Connecticut is in the quarter of states whose recent five years most closely match their own long-run pace: about 5.3% a year lately against 4.4% a year across the full record, a difference of just 0.9%. The published series describes that relative steadiness but does not identify its cause.
Both figures are compound annual rates over EIA's published residential series, so the five-year and full-record windows are directly comparable; the national comparison ranks all 51 states and DC on the same measure. Annual state-level averages, not individual bills.
2025 Rate
29.38¢/kWh
vs National Avg
+69.8%
5-Year Change
+29.4%
Since 2016
+46.8%
Price Trends, Connecticut vs National Average
Annual Average Prices
| Year | Residential | US Avg |
|---|---|---|
| 2025 | 29.38¢/kWh +2.2% | 17.30¢/kWh |
| 2024 | 28.75¢/kWh -3.8% | 16.48¢/kWh |
| 2023 | 29.88¢/kWh +21.4% | 16.00¢/kWh |
| 2022 | 24.61¢/kWh +12.3% | 15.04¢/kWh |
| 2021 | 21.91¢/kWh -3.5% | 13.66¢/kWh |
| 2020 | 22.71¢/kWh +3.8% | 13.15¢/kWh |
| 2019 | 21.87¢/kWh +3.2% | 13.01¢/kWh |
| 2018 | 21.20¢/kWh +4.5% | 12.87¢/kWh |
| 2017 | 20.29¢/kWh +1.4% | 12.89¢/kWh |
| 2016 | 20.01¢/kWh | 12.55¢/kWh |
Provider record
Largest bundled residential providers EIA reports for Connecticut
EIA-861 table 6 lists 13 reporting entities here for 2024, ordered by residential customer count. A provider's appearance is not evidence that it serves every address or that a household can choose it.
| Provider | Ownership | Residential customers | EIA average price |
|---|---|---|---|
| Connecticut Light & Power Co | Investor Owned | 924,132 | 28.51¢/kWh |
| United Illuminating Co | Investor Owned | 256,302 | 34.04¢/kWh |
| Town of Wallingford - (CT) | Municipal | 21,405 | 15.65¢/kWh |
| Sunnova | Behind the Meter | 20,437 | 21.24¢/kWh |
| City of Norwich - (CT) | Municipal | 18,870 | 22.78¢/kWh |
| Sunrun Inc. | Behind the Meter | 17,293 | 24.36¢/kWh |
| Groton Dept of Utilities - (CT) | Municipal | 12,284 | 18.70¢/kWh |
| Tesla Inc. | Behind the Meter | 8,450 | 17.11¢/kWh |
| SunPower Capital, LLC | Behind the Meter | 3,506 | 18.03¢/kWh |
| Bozrah Light & Power Company | Municipal | 2,434 | 19.33¢/kWh |
| Spruce Finance | Behind the Meter | 1,848 | 16.33¢/kWh |
| EverBright, LLC | Behind the Meter | 489 | 17.81¢/kWh |
| Palmetto Solar, LLC | Behind the Meter | 46 | 28.09¢/kWh |
“Average price” is EIA's reported residential revenue divided by sales, not a tariff, plan offer, or bill quote. Source: EIA Electric Sales, Revenue, and Average Price, table 6.
Frequently Asked Questions
Are electricity prices going up in Connecticut? ▼
How does Connecticut's electricity price compare to the national average? ▼
What do businesses pay for electricity in Connecticut? ▼
Where does this price trend data come from? ▼
Energy Guides
Where Connecticut's figures come from
Data from the U.S. Energy Information Administration. Prices in cents per kilowatt-hour (kWh). Annual averages.
Related
Read our methodology , how this data is sourced, computed, and verified.