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Your Comprehensive Guide to United Illuminating Electricity Rates

Author: Daniel Cleaves | Reviewer: Jesse Shaver | Updated:

Key Takeaways

  • United Illuminating (UI) serves a significant portion of Connecticut, and understanding their rates is crucial for managing your electricity costs.
  • Connecticut's Energy Choice program allows UI customers to choose their electricity supplier, potentially leading to savings on their energy bills.
  • Switching providers through ElectricityRates.com is a simple process that doesn't interrupt your service and could result in significant savings.
  • Energy-saving strategies and choosing the right plan can maximize your overall savings on electricity costs.

Rate Increase Coming for UI residents in January 2026. Read on for more information about the announcement here.

Understanding United Illuminating and Connecticut Energy Choice

United Illuminating Company (UI) is a major electricity distribution company serving a significant portion of Connecticut. As one of the state’s primary utilities, UI is responsible for maintaining the power lines and infrastructure that deliver electricity to homes and businesses in its service area. However, thanks to Connecticut’s Energy Choice program, UI customers aren’t limited to UI for their electricity supply.

Connecticut’s Energy Choice program, implemented in 2000, allows consumers to choose their electricity supplier while UI continues to handle the delivery of electricity. This deregulation has opened up the market to competition, potentially leading to lower rates and more innovative energy plans for consumers.

How electricity is generated by a power plant, distributed by a utility and sold to residents through retail electricity providers in deregulated states.

What is the UI Price to Compare?

The current United Illuminating price to compare is 11.68¢ per kilowatt-hour (kWh) effective July 1st, 2025 through December 31st, 2025.

The “price to compare” (PTC) is a benchmark rate set by your local utility company that allows you to compare their standard electricity rate with offers from other retail suppliers.

Price to Compare Effective Date Range Price to Compare (rate per kWh)
July 1st, 2025 - December 31st, 2025 11.68¢
January 1st, 2025 - June 30th, 2025 13.57¢
July 1st, 2024 - December 31st, 2024 11.91¢
January 2nd, 2024 - July 2nd, 2024 17.06¢
January 1st, 2024 - June 30th, 2024 17.06¢
August 10th, 2023 - January 1st, 2024 14.33¢
June 2nd, 2023 - August 9th, 2023 21.94¢
January 2nd, 2023 - June 1st, 2023 21.94¢
May 9th, 2022 - January 1st, 2023 10.67¢
May 2nd, 2022 - May 8th, 2022 9.19¢

Compare United Illuminating Electricity Rates

Components of Your UI Electricity Bill

Understanding your UI electricity bill is critical to managing your energy costs effectively. Your bill is divided into two main components: supply charges and delivery charges.

  • Supply charges cover the cost of the electricity you use and can vary depending on your chosen supplier. If you haven’t selected an alternative supplier, these charges will be based on UI’s Standard Service rate.
  • Delivery charges cover the cost of transmitting and distributing electricity to your home or business. These charges are set by UI and approved by PURA, and they remain the same regardless of your chosen supplier.

At ElectricityRates.com, we help you analyze your bill by clearly displaying the Price to Compare for UI customers and showing how it compares to rates offered by competitive suppliers. This makes it easy to see potential savings at a glance.

How to Read Your Electricity Bill. Break down of charges found on your bill.

Simple Switch, Big Savings

Compare rates from leading providers and make the switch in only a few minutes.

 

Best Electricity Providers for UI Customers

To be one of the best electricity providers in CT a company must offer a customer-first experience, combining a proven track record of delivering the best energy products with stellar customer service. In addition, the best provider for you may have a mission that aligns with your values or supports causes you care about.

In today’s crowded market, finding a provider that checks these boxes can be difficult. That’s why ElectricityRates.com did the research comparing dozens of electricity providers across multiple touch points. Check out who we rank as some of the Best Electricity Providers in Connecticut here.

When evaluating providers look for fixed-rate plans that lock in your rate for a specified period, providing price stability and protection against market fluctuations. Other options include variable-rate plans that allow your rate to change monthly based on market conditions, potentially offering savings during periods of low demand. Green energy plans support renewable energy production, often sourcing 100% of electricity from renewable sources.

Maximizing Savings with Energize CT

While choosing a competitive supplier can lead to significant savings, there are additional strategies to further reduce your electricity costs. Connecticut residents can also take advantage of programs offered through Energize CT, a state initiative providing energy efficiency resources and incentives. These programs can help you reduce your energy consumption and lower your bills even further.

The primary entry point for most residents is the Home Energy Solutions (HES) assessment. During an HES visit, a certified technician conducts a thorough evaluation of the home’s energy performance, including tests for air leaks and checks on heating/cooling systems. Crucially, the technician installs immediate, on-the-spot energy-saving measures at little to no cost. For customers who meet income requirements, the comprehensive assessment and weatherization services are often provided completely free of charge.

Beyond the initial assessment, Energize CT offers significant rebates and financial incentives for major energy-saving upgrades. These incentives can cover a substantial portion of the cost for high-efficiency equipment, notably including generous rebates of up to $15,000 for the installation of air source and geothermal heat pumps, which are vital for efficient heating and cooling. Substantial rebates are also available to cover up to 75% of the cost for crucial upgrades like attic and wall insulation.

United Illuminating Contact Information

Here is all of the information you need to get in touch with UI, pay your bill online and report an outage or other electricity emergency.

For more information about comparing rates, check out our guide to Connecticut electricity rates!