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

My AccountBy continuing to use this site, you are agreeing to our use of cookies.

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.

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.

Budget Billing With Budget Billing, UI will bill you for an average monthly electric cost based on your actual use. Read more

The United Illuminating Company’s (UI) comprehensive outdoor lighting program, UI’s Outdoor Lighting, is the easiest and most affordable way to improve the outdoor lighting on your …

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

UI is engaged in the purchase, transmission, distribution and sale of electricity and related services to approximately 338,654 residential, commercial and industrial customers in the …

Call 800.722.5584 (800-7-CALL-UI) to make a payment any time using our automated phone system. Payments made using the phone system are subject to a convenience fee.