Electricity rates — Connecticut

What a typical bill costs

At 1,000 kWh a month the 2 generally available plans here run from $3,524.81 on Rate 7 - Residential Time-Of-Day Electric Service to $3,621.00 on Rate 1 - Residential Electric Service, with a median of $3,572.90.

Effective rates, bill divided by kilowatt-hours, span 29.4¢ to 30.2¢ per kWh at that usage.

What households in Connecticut pay, by EIA's count

Over the 12 months to June 2026, residential electricity in Connecticut averaged 28.4¢ per kWh, the 6th-highest of the 50 states and DC and 58% above the US average of 17.9¢. It 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 29.8¢ per kWh, 5% above EIA's average, which is why this page compares that median with other states'.

How Connecticut compares

At 1,000 kWh a month the median plan in Connecticut costs $3,572.90 a year: the 3rd-highest of the 29 states whose indexed plans stand for them, and 80% more than their median of $1,989.30. It sits between New Hampshire ($2,933.04) and Hawaii ($4,406.88).

Its cheapest open plan, Rate 7 - Residential Time-Of-Day Electric Service from Connecticut Light & Power Co at $3,524.81, is the 2nd-highest of the 29 states' cheapest plans.

2 of its 8 priceable plans price by the hour, the 7th-smallest share of any state here.

In the guides: What published electricity plans cost, state by state · What a plan charges by the hour, and what moving a kilowatt-hour is worth

Who provides these 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 this does 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.

2 of these plans price by the hour, so their figures are marked lower confidence.