The UI Standard Service Generation Rate increased on January 1. This charge for the supply portion of the bill is adjusted each January and July. UI does not control the cost of electricity supply and does not profit from this service. It is a pass-through cost.
Most electricity supply is generated by natural gas and the price of electricity generated by natural gas can be impacted by:
- The demand for electricity and the pipeline capacity to move the natural gas to meet demand.
- The weather can drive demand and impact the delivery of natural gas to generating plants.
- World events can impact energy prices.
UI Rates and Riders
Understanding Rates
Your UI bill is broken down into two major components, Delivery and Generation.
- Delivery -
- The Delivery portion covers the cost to deliver electricity across our equipment. UI offers a variety of Delivery rates to accommodate various customer types and needs.
- The Delivery portion of your bill includes several components, including Basic Service, Transmission, Distribution, Combined Public Benefits, Competitive Transition Assessment and Non-Bypassible FMCC line items. These pay for the equipment that delivers electricity to your home, social policy costs, and services and programs that benefit all UI customers. This portion of your bill is unchanged if you select an alternate supplier for generation service. Read more at Billing Glossary.
- Generation -
- The total rate you pay also includes a separate charge for Generation, which can be purchased from UI or alternate suppliers in a competitive market. Read more at Choose a Supplier.
Residential Rates RT & R
UI offers two rates for residential customers: Rate RT and Rate R.
- Rate RT is our time-of-day rate for residential customers. From noon until 8 p.m. weekdays (the peak period), the electricity you use costs more than electricity used at other times.
- Rate R provides a constant charge for the electricity you use regardless of when you use it. Day, night, weekend or weekday, it is the same price. There is a twice-yearly price adjustment from the winter to the summer peak period and back.
UI Standard Service/Last Resort Generation Rates
Below are the off- and on-peak hours for each day of the week. The table shows UI Standard Service rates and Last Resort rates effective January 1, 2023.
- Off-Peak Hours: Monday through Friday, 8 p.m. - 12 noon and all day Saturday and Sunday
- On-Peak Hours: Monday through Friday, 12 noon - 8 p.m.
The United Illuminating Company
Effective January 1, 2023 - June 30, 2023: Standard Service Generation Rates
Rates in ¢/kWh
| Rate |
Description |
Rate c/kWh |
On-Peak Rate c/kWh |
Off-Peak Rate c/kWh |
| R |
Residential |
21.9429 |
|
|
| RT |
Residential (Time-of-Day) |
|
24.4362 |
20.9362 |
| GS |
General Service |
20.9663 |
|
|
| GST |
General Service (Time-of-Day) |
|
22.6429 |
19.6429 |
| LPT |
Large Power (Time-of-Day) |
|
22.6163 |
19.6163 |
| M, MC & MH |
Street & Security Lighting |
21.1412 |
|
|
| U |
Street & Security Lighting |
21.1412 |
|
|
The United Illuminating Company
Effective January 1, 2023: Last Resort Service Generation Charges (GSC)
Apply to Rates GST and LPT**
| Month |
On-Peak Rate ¢/kWh |
Off-Peak Rate ¢/kWh |
| January 2023 |
37.2390 |
35.2640 |
| February 2023 |
39.5473 |
37.5723 |
| March 2023 |
22.8151 |
22.1401 |
Virtual Net Metering Application - Effective September 2, 2014
Important Notice: Applicants seeking approval for use of a Virtual Net Metering Facility or Agricultural Net Metering Facility should submit the Virtual Net Metering Application and Forms (see Optional Services at the bottom of the page) along with all required documentation and verification to the Company on or after September 2, 2014. Filing instructions are contained within the documents to assist Applicants in the application process. In particular, please note that the Company requires all Applications, including exhibits and attachments, to be submitted electronically and in hard copy.
Applications should be submitted by mail and electronically by email:
- Mail - Hard-copy applications should be submitted to Mark P. Colca, Manager, Pricing at The United Illuminating Company | 180 Marsh Hill Rd., MS AD-2A | Orange | Connecticut 06477-3629.
- email - Electronic applications, including exhibits and attachment should be emailed to Mark P. Colca.
UI Schedule of Rates & Riders
Below is a complete listing of UI’s current schedule of rates and riders as approved by the Public Utility Regulatory Authority (PURA). We've made it convenient for you to view and/or print a PDF of any section of the schedule by clicking the title for the specific rate.
If you would like to view and/or print the entire schedule of rates and riders, download the Schedule of Rates and Riders (PDF).
SCHEDULE OF RATES AND RIDERS BY SECTION
General
Electric Supplier Index
Residential
Commercial/Industrial
Street Lighting
Interruptibles
Lease
Optional Services
