United Illuminating provides safe, reliable electric service to customers in the greater New Haven and Bridgeport areas of Connecticut.

Pay your UI bill online by credit card, debit card, or checking / savings account.

Sign in and manage your UI account, and view and pay your bill. Don't have an account? Register here to get started.

Contact us regarding customer service inquiries, emergencies, and power outages.

At UI, we strive to provide you and your family with reliable and essential energy delivery, with several programs to assist financially with your bill. The Low-Income Discount Rate (LIDR) is …

SupportView customer service phone numbers and other important contact information for residential and business customers.

Start, stop and transfer your electrical services in greater New Haven and Bridgeport area with UI. Our quick and easy process ensures you can manage your services in just a few steps.

Planned Maintenance On rare occasions, UI must schedule a power outage in order to accommodate system upgrades. Read more

United Illuminating (UI) is a wholly-owned subsidiary of AVANGRID, Inc. View the most current financial information, including quarterly and annual filings at AVANGRID.com.

Explore ways to pay, receive and manage your UI bill. Pay your bill online or learn about other ways to pay using our mobile app, AutoPay, or pay offline.