Connecticut Electricity Prices

Connecticut sits in the most expensive quarter of the country — 27.37¢ per kilowatt-hour in May 2026, 8th-highest of 51 and 41.0% above the national benchmark. The index reports the published average, not its causes.

At Connecticut's May 2026 average of 27.37¢/kWh, 10,500 kWh of annual use works out to $2,874 a year — around $240 a month. Running the same 10,500 kWh calculation at the May 2026 national benchmark rate gives $2,038 — a $836 gap between the two published averages, more for Connecticut, not a bill either way.

Over the full EIA series the Connecticut jurisdiction average has risen 156% since January 2001, from 10.70¢ to 27.37¢ in May 2026 — a compound 3.8% per year. Connecticut is among the most month-to-month variable third of jurisdictions.

April 2023, at 34.48¢ per kilowatt-hour. The May 2026 reading of 27.37¢ sits 20.6% below that peak. The lowest monthly average on record was 10.23¢ in February 2001.

April. Measured over the 25 complete calendar years the EIA series covers for Connecticut, 2001 through 2025, April runs highest relative to its own year and December runs lowest — a swing of roughly 7.1 percentage points.

Among Connecticut and its land-border neighbours in May 2026, Connecticut posts the lowest average at 27.37¢ and New York the highest at 29.93¢. That makes Connecticut the cheapest in the group, at 27.37¢.

Almost certainly not exactly, and this is the one caveat that governs every figure on this page. The published value is the EIA residential average across every utility and residential rate class in Connecticut for May 2026 — a benchmark, never a billed amount. Even the jurisdiction figure is not one number — across the trailing year it moved between 25.30¢ in December 2025 and 32.24¢ in April 2026. Your own rate depends on your utility, tariff, usage tier, time-of-use schedule, and fixed monthly charges, none of which this index models. Read your bill for the rate that applies to you.