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

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.

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

View a map of current electric outages and restoration statuses for UI customers.

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.

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.

Established in 1899, UI is engaged in the purchase, transmission, distribution and sale of electricity and related services to approximately 347,149 residential, commercial and industrial …

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 …

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