Electricity rates — Connecticut
A household in Connecticut using 1,000 kWh a month pays about $3,593 a year on the cheapest of 2 generally available plans — Rate 7 - Residential Time-Of-Day Electric Service from Connecticut Light & Power Co, in effect since January 2026, at the typical hour-by-hour use of homes in Connecticut. Schedule retrieved October 8, 2026. A further 6 schedules are published but restricted — means-tested, closed to new customers, or limited to particular homes or equipment — and they are priced further down.
- Average price
- 28.4¢ per kWh
- 12 months to June 2026
- Against the 12 months before
- −6.1%
- The largest fall of the 50 states
- Average bill
- $201 a month
- 12 months to June 2026, down 4.9% on the 12 months before, though homes used 1.2% more
Every priced plan in Connecticut, 1,000 kWh/mo
| Plan | Per year | vs cheapest | Effective |
|---|---|---|---|
| Rate 7 - Residential Time-Of-Day Electric Service✓ cheapesttime-of-use · in effect since January 2026 | $3,592.88 | — | 29.9¢ |
| Rate 1 - Residential Electric Serviceflat rate · in effect since January 2026 | $3,621.00 | +$28.12 | 30.2¢ |
| Priced but not ranked — restricted, older, or not verifiable as a bill | |||
| Rate 18- Controlled Water Heating Electric Serviceflat rate · in effect since January 2026 · delivery charges only | $1,368.96 | −$2,223.92 | 11.4¢ |
| Rate 5 - Residential Electric Heating Serviceflat rate · in effect since January 2026 · delivery charges only | $1,938.48 | −$1,654.40 | 16.2¢ |
| Rate 7 - Residential Time-Of-Day Electric Servicetime-of-use · in effect since January 2026 · delivery charges only | $2,031.34 | −$1,561.54 | 16.9¢ |
| Rate 1 - Residential Electric Serviceflat rate · in effect since January 2026 · delivery charges only | $2,068.08 | −$1,524.80 | 17.2¢ |
| Rate 18- Controlled Water Heating Electric Serviceflat rate · in effect since January 2026 · needs electric heating | $2,817.84 | −$775.04 | 23.5¢ |
| Rate 5 - Residential Electric Heating Serviceflat rate · in effect since January 2026 · needs electric heating | $3,491.40 | −$101.48 | 29.1¢ |
The cheapest plan in Connecticut at each level of use
- 500 kWh/mo — cheapest $1,854.14 (Rate 7 - Residential Time-Of-Day Electric Service), dearest $1,868.28, a $14.14 range
- 1,000 kWh/mo — cheapest $3,592.88 (Rate 7 - Residential Time-Of-Day Electric Service), dearest $3,621.00, a $28.12 range
- 2,000 kWh/mo — cheapest $7,070.29 (Rate 7 - Residential Time-Of-Day Electric Service), dearest $7,126.56, a $56.27 range
What households in Connecticut pay, by EIA's count
Connecticut sits between New York (28.0¢) and Maine (29.0¢).
EIA lists 6 utilities serving homes in Connecticut. By homes served, the largest 5 are Connecticut Light & Power Co (1,174,420), United Illuminating Co (312,291), Town of Wallingford - (CT) (21,405), City of Norwich - (CT) (18,870), and Groton Dept of Utilities - (CT) (12,284). Investor-owned utilities supply about 79% of its households on full service.
Connecticut homes used the most electricity in July and the least in October (2021–2025): a summer peak, 1.8 times the lightest month. April was the dearest month per kWh, 18% above July.
The utilities with a ranked plan on this page serve about 78% of Connecticut's households: Connecticut Light & Power Co (1,174,420). Their median plan at 1,000 kWh a month works out to 30.1¢ per kWh, 6% above EIA's average, which is why this page compares that median with other states'.
| Average price, 12 months to June 2026 | 28.4¢ |
|---|---|
| Among the 50 states and DC | 46 of 51, 1 = lowest |
| US average, same months | 17.9¢ |
| Change on the 12 months before | ↓ −6.1% |
| Change over five years | ↑ +27.8% (US ↑ +34.7%) |
| Average price in 2001 | 10.9¢ |
| Households, 2024 | 1,500,677 |
| Average use per home, 2024 | 719 kWh a month (US 872) |
| Average bill per home, 2024 | $206.59 a month (US $143.64) |
Chart of this for reuse (PNG), free to republish under CC BY 4.0 with credit to WattClear.
Every year’s figure for Connecticut
| Year | Connecticut | US |
|---|---|---|
| 2025 | 29.4¢ | 17.3¢ |
| 2024 | 28.7¢ | 16.5¢ |
| 2023 | 29.9¢ | 16.0¢ |
| 2022 | 24.6¢ | 15.0¢ |
| 2021 | 21.9¢ | 13.7¢ |
| 2020 | 22.7¢ | 13.2¢ |
| 2019 | 21.9¢ | 13.0¢ |
| 2018 | 21.2¢ | 12.9¢ |
| 2017 | 20.3¢ | 12.9¢ |
| 2016 | 20.0¢ | 12.5¢ |
| 2015 | 20.9¢ | 12.7¢ |
| 2014 | 19.7¢ | 12.5¢ |
| 2013 | 17.6¢ | 12.1¢ |
| 2012 | 17.3¢ | 11.9¢ |
| 2011 | 18.1¢ | 11.7¢ |
| 2010 | 19.2¢ | 11.5¢ |
| 2009 | 20.3¢ | 11.5¢ |
| 2008 | 19.5¢ | 11.3¢ |
| 2007 | 19.1¢ | 10.7¢ |
| 2006 | 16.9¢ | 10.4¢ |
| 2005 | 13.6¢ | 9.4¢ |
| 2004 | 11.6¢ | 8.9¢ |
| 2003 | 11.3¢ | 8.7¢ |
| 2002 | 11.0¢ | 8.4¢ |
| 2001 | 10.9¢ | 8.6¢ |
Highest in July, $237; lowest in October, $145.
Every month’s bill in Connecticut
| Month | Average bill |
|---|---|
| January | $220 |
| February | $206 |
| March | $187 |
| April | $162 |
| May | $152 |
| June | $185 |
| July | $237 |
| August | $232 |
| September | $181 |
| October | $145 |
| November | $156 |
| December | $199 |
In the guides: Summer and winter bills, state by state
How Connecticut compares
At 1,000 kWh a month the median plan in Connecticut costs $3,606.94 a year: the 3rd-highest of the 31 states whose indexed plans stand for them, and 59% more than their median of $2,274.24. It sits between Maine ($3,483.26) and Hawaii ($4,424.26).
Its cheapest open plan, Rate 7 - Residential Time-Of-Day Electric Service from Connecticut Light & Power Co at $3,592.88, is the 2nd-highest of the 31 states' cheapest plans.
In the guides: What published electricity plans cost, state by state
Who provides Connecticut's plans
Every plan here comes from Connecticut Light & Power Co — a limit of what has been indexed, not a claim that it is the only provider in Connecticut. How each of its plans is built, and what changing between them saves, is set out on Connecticut Light & Power Co's own page.
What the Connecticut figures do not cover
Only one utility in Connecticut has been indexed so far, so the ranges above are not statewide. A household served by another provider will not find its plans here yet.