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Eversource Connecticut electric rates

Updated October 7, 2026 · Source: EIA Form 861 (2024), 2026 distribution rate case (filed 7/14/2026)

Investor-owned utility serving 1,174,420 homes in Connecticut.

Your rate

25.31¢per kWh, average residential rate 54% higher than the U.S. average (16.4¢)

$175average monthly bill at the current tariff$2,095 a year

699kWh used per month, average home

+27%rate change since 2020U.S. average: +28%

Rate increase pending

About $32 more per month

Eversource filed its first full CT distribution rate case since 2017 on July 14, 2026, seeking up to $727 million more per year (about $451 million or 11% excluding storm costs); the AG estimates an 18% residential increase including recovery of 2018-2025 storm costs. Money is for unrecovered infrastructure investment, O&M, vegetation management and storm response. PURA review runs about 11 months with rates proposed for July 1, 2027.

If approved as filed, a typical 699 kWh bill goes from $175 to $206 a month. See the case →

Estimate your bill

Electricity you use each month (kWh)

It's on your bill, usually near the top. Starting at 699 kWh, the average for Eversource Connecticut homes.

kWh

$175 a month

$10 fixed charge + 23.6¢ × 699 kWh

This is an estimate. Tariff: $9.62 fixed + 23.6¢/kWh effective July 1, 2026 (source). Eversource CT Rate 1 (residential non-heating). Delivery effective May 1 2026: customer charge $9.62/mo; transmission 5.050c + distribution 5.844c + electric system improvements 2.031c + revenue decoupling 0.011c + CTA 0.496c + public benefits: combined public benefits charge 0.504c and FMCC -1.911c = 12.03 c/kWh. Standard Service supply 11.577 c/kWh for Jul 1-Dec 31 2026. Sum 23.60c. Excludes taxes. Your bill also includes taxes and fuel adjustments that change month to month.

Rate cases

Docket	Status	Filed	Requested	Approved	Effective
2026 distribution rate case (filed 7/14/2026)	Pending	July 14, 2026	18% ($727M)	—	July 1, 2027
26-01-03	Approved	January 1, 2026		—	May 1, 2026
2025 Rate Adjustment Mechanism annual review	Approved	January 1, 2025		—	May 1, 2025

2026 distribution rate case (filed 7/14/2026): Eversource filed its first full CT distribution rate case since 2017 on July 14, 2026, seeking up to $727 million more per year (about $451 million or 11% excluding storm costs); the AG estimates an 18% residential increase including recovery of 2018-2025 storm costs. Money is for unrecovered infrastructure investment, O&M, vegetation management and storm response. PURA review runs about 11 months with rates proposed for July 1, 2027. Source

26-01-03: PURA's annual Rate Adjustment Mechanism review (decided April 22, 2026) cut Eversource residential rates by 4.3 cents/kWh, about $30 on an average bill (about $43 at 1,000 kWh, scaled from the per-kWh figure), effective May 1, 2026 through April 30, 2027. Decrease reflects lower public benefits charges tied to Millstone/Seabrook contracts and lower hardship-program costs. A prudence review may adjust rates September 1. Source

2025 Rate Adjustment Mechanism annual review: PURA's April 23, 2025 RAM decision lowered the public benefits and transmission portions of bills, about $13/month for an average Eversource residential customer starting May 1, 2025, after approving a $142 million customer credit from Millstone/Seabrook contract gains (Eversource had sought $275 million plus a $75 million storm reserve, both rejected). Supply and distribution rates were unchanged. Source

Rate history

Eversource Connecticut's average rate is up 27% since 2020, versus +28% for the U.S. average.

Average residential revenue per kWh, EIA-861. Includes delivery and, where the utility sells it, supply.

Rebates for heat pumps, batteries and EV chargers

We haven't found utility-level rebates for Eversource Connecticut yet. Check Connecticut programs or read what's left after the federal credits ended.

About Eversource Connecticut

Legal name: Connecticut Light & Power Co (Eversource)
Ownership: Investor Owned
Homes served: 1,174,420 residential customers (2024)
Grid operator: ISNE
Retail choice: Yes — you can pick a supplier for the energy portion
Data: EIA-861 2024, released October 7, 2026; rate cases checked October 7, 2026

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