Compare The Best Connecticut Electricity Providers and Rates

Author:
Tim Wasson
Editor:
Matt Oberle
Last Updated:
10-23-2025
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About Constellation

Changing suppliers was quick and easy. A very competitive price and a smooth transition.

- Susan from Ellington

9 Month Fixed Rate
  • 9 months
  • Plan MRC $0
12.490¢
effective rate per kWh

9 Month Home Power Plan

Call 855-798-9075
12 Month Fixed Rate
  • 12 months
  • Plan MRC $0
13.990¢
effective rate per kWh

12 Month Home Power Plan

Call 855-798-9075
Rates as of Jan 14, 2026 at 09:00 PM

Eversource and United Illuminating Default Service Rates Increased up to 25% on Jan 1

Eversource rates increased 25% from 8.99 to 11.19

United Illuminating rates increased 14% from 11.91 to 13.57

Eversource Tells Customers to Shop 3rd Party Suppliers.

Video: What is the Best Electricity Rate in Connecticut for Winter 2025

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