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

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

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

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

Find help paying your energy bill from UI. Learn about our low-income discount rate, financial hardship assistance, payment arrangements, and state programs.

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

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.

Dec 8, 2025 · As of Jan. 1, 2026, an updated rate schedule is effective for customers of United Illuminating (UI), as approved by the Connecticut Public Utilities Regulatory Authority (PURA).

Welcome to United Illuminating!Whether you’re a new, returning or current customer, we’re happy to serve you.

UI offers several programs to assist customers financially with their bill. In addition, there are a variety of state programs that may be able to provide you with financial assistance with your …