Energy costs in Connecticut
Every figure we hold for Connecticut, on one page. Each links to the working behind it.
A heating state
Connecticut runs about 5,800 heating degree days against 700 cooling ones, so the heating system does most of the work and is where an upgrade pays off. Its electricity bill peaks in July.
Electricity
27.37¢
per kWh
Gas $2.25/therm ›
Typical bill
$203
a month
Peaks at $282 ›
Air conditioning
$174
a year
$0.57 an hour ›
Heating
$2466
a season
Gas furnace is cheaper ›
Solar payback
5.8 yrs
on a 6 kW system
Generates at 7.0¢/kWh ›
Common questions
How much does energy cost in Connecticut?
Electricity is 27.37¢ per kilowatt hour and natural gas $2.25 per therm. A typical household pays about $203 a month for electricity.
Does Connecticut spend more on heating or cooling?
Heating. Connecticut runs about 5,800 heating degree days against 700 cooling ones, so winter dominates and the heating system is where money is worth spending.
For your own home
Everything above describes a 1,800 square foot home at Connecticut average prices. The calculators take your ZIP code and your own numbers.
Open the calculatorsPrices from the US Energy Information Administration, 2026-05. Solar production modelled by NREL. Heating and cooling loads estimated from Connecticut's degree days. Estimates, not quotes.