The United Illuminating Company - Utility for New Haven, Bridgeport and more

Headquartered in Orange, Connecticut, The United Illuminating Company (UI) handles electricity transmission and distribution for the Bridgeport and New Haven areas of the Connecticut shoreline along Long Island Sound. UI is a subsidiary of Avangrid (NYSE: AGR) and is the smaller of Connecticut’s two electric utilities. Residential and Business customers in the UI territory can shop for a competitive supplier.

Looking for information on how to shop for cheap electricity rates for your home or business? We’ve got you covered… jump directly to that info at the bottom of the page!

United Illuminating History

UI’s history began in 1881 with several small lighting companies and was formally established as The United Illuminating Company in 1899. In 2000, UI became a subsidiary of UIL Holdings Corporation to hold regulated and related non-regulated businesses. In 2010, UIL and Iderdrola merged and purchased several local gas providers in Connecticut. Today, the UIL/Iderdrola merger is known as Avangrid and is the parent company of UI.

Areas Served By United Illuminating

UI serves 17 Connecticut towns covering 335 square miles along Connecticut’s shoreline. The cities that UI serves includes Bridgeport, New Haven, and Milford.

United Illuminating Residential Standard Service Rate

United Illuminating offers a standard service rate for generation to customers who choose to remain with the utility and not choose an alternative generation supplier. The standard service rate changes every six months, January 1st and July 1st.

Below are current rates for UI. There are two rates for residential customers: Rate R and Rate RT.

  • Rate R is a constant rate regardless of the time of day electricity is used.
  • Rate RT is a time of use rate with one rate for on peak usage 12pm – 8pm and one rate for off peak usage 8pm – 12pm and weekends.
United Illuminating Rate ClassJanuary 1 - June 30, 2019
Generation Supply Rate $/kWh
July 1 - December 31, 2019
Generation Supply Rate $/kWh
Rate R11.2263unknown
Rate RT Peak13.7718unknown
Rate RT Off-Peak10.2718unknown

In January 2019, both UI and Eversource (the other utility in the state) announced big rate increases. Most consumers in the UI area have experienced a 24% increase in their electricity bill starting in January 2019.  New rates are announced around 45 days before they become effective.

Because of the rate increases some consumers have decided to shop for an electricity provider and lock in a fixed rate. That’s a smart idea — right now, there are many fixed price offers that are below the UI standard service offer rate.

Shop for an Alternative Electricity Supplier

If you haven’t shopped for a supplier, you are likely on the Standard Service Offer Rate from UI. When you switch to an alternative electricity supplier, you can lock in a fixed rate for your electricity. This offers security and peace of mind. Longer term plans of 24 or 36 months often give the best savings on your electricity price.

Ready to shop now for your alternative electricity supplier? All you need is a copy of your bill (for your account information) and your zip code.

Shop CT residential electricity rates

Shop CT small business electricity rates

Get a quote for large commercial electricity rates

Want to learn more? Read our article on How to Shop for an Electricity Supplier in CT.

Utility Highlights

Efficiency and careful stewardship of electricity resources are central to the philosophy of UI. The electricity utility is making huge strides toward sustainability and social responsibility in all areas of their operation, and for all types of Connecticut residential and business customers.

At UI, sustainability at the heart of everything, from electricity generation to community projects and even choices made about upgrades and changes to the electric infrastructure. In addition, UI helps to administer the Energy Efficiency Fund, an Energize Connecticut partner. UI is improving its efficiency by investing in technology and learning better ways of using its existing equipment.

Here are a few ways this Connecticut utility is reaching out to the community to increase sustainability over a wider area and provide excellent customer service:

  • Increasing education about distributed generation. UI is encouraging local customers to connect their own forms of electricity generation to reduce their reliance on the grid. By educating customers on the ways that solar, wind, fuel cell and micro turbines can help reduce their power costs and support the power infrastructure at the same time, this utility is making it easier for people to decrease their dependency on the electric grid.
  • Electric vehicle infrastructure. Working with both state and local government, UI is streamlining the integration of electric cars into the state of Connecticut. It’s not enough to have electric cars, you also have to have somewhere to charge them—and that’s something UI is building.
  • Outage alerts. UI provides extensive outage alert services , including a real-time online outage map, messaging alerts, and online education resources to help customers prepare for storms and other emergencies.

Coastal areas of Connecticut served by UI can rest assured that they are receiving great service and reliability from a relatively small but experienced utility focused on sustainability.