United Illuminating serves southern Connecticut including New Haven, Bridgeport, Milford, and surrounding communities.

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How United Illuminating (UI) and Retail Suppliers Work Together

UI serves the New Haven and Bridgeport metro areas.

UI handles distribution. TPES competition applies for commercial supply. The supply portion of your bill — typically the largest single line item for commercial accounts — is where retail competition applies. That's the piece a broker targets.

UI delivery rates are CT PURA-regulated.

What "Switching Suppliers" Means for United Illuminating (UI) Customers

Standard CT TPES switching process applies in UI territory.

TPES competition is active in UI territory.

The process: you authorize a supplier to serve your account, they notify United Illuminating (UI), and the change takes effect at your next billing cycle. No technician visit. No service interruption. Same reliability, different supply rate.

How We Source Rates in the United Illuminating (UI) Territory

We submit your load profile to all active retail suppliers licensed in the United Illuminating (UI) territory simultaneously. They compete. You get multiple offers — typically within 24–48 hours — with our plain-English explanation of each.

We don't represent any single supplier. Our fee comes from the supplier you choose, built into every quote at a rate that doesn't change whether you use a broker or not. You pay nothing out of pocket.

Get competing quotes for your United Illuminating (UI) commercial account
We shop 30+ suppliers at no cost to you.

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Understanding Your United Illuminating (UI) Commercial Bill

A typical commercial United Illuminating (UI) bill has several distinct charges:

A broker focuses on the supply charge — the one component where you have leverage. We make sure you understand all other charges so there are no surprises.

Frequently Asked Questions

Does switching suppliers affect my United Illuminating (UI) service?

No. United Illuminating (UI) handles physical delivery of electricity regardless of which supplier you choose. Standard CT TPES switching process applies in UI territory. Your United Illuminating (UI) account number stays the same; you'll simply see a different supplier name on the supply portion of your bill.

Why is my United Illuminating (UI) bill so high?

Commercial United Illuminating (UI) bills have several components: supply charges (electricity generation), delivery charges (wires and poles), transmission, capacity charges, and taxes. Only the supply charge is negotiable through a retail supplier. UI handles distribution. TPES competition applies for commercial supply.

What is United Illuminating (UI)'s default service rate?

United Illuminating (UI)'s default service (or 'provider of last resort' service) is the rate applied to accounts that haven't chosen a retail supplier. UI delivery rates are CT PURA-regulated. Competitive suppliers often offer better rates than default service for commercial accounts.

How do I get competing quotes for my United Illuminating (UI) account?

We pull your 12-month usage history from United Illuminating (UI) (with your authorization), build your load profile, and submit to 30+ active retail suppliers in the United Illuminating (UI) territory. You receive competing offers within 24–48 hours at no cost.

What's the difference between United Illuminating (UI) and a retail energy supplier?

United Illuminating (UI) owns the wires that deliver electricity to your building. A retail energy supplier (REP) generates or purchases the electricity itself. You pay United Illuminating (UI) for delivery and your chosen supplier for supply — two separate charges on one or two bills depending on the market structure.

CommercialEnergyPlan.com is an independent energy broker and is not affiliated with United Illuminating (UI) or any utility.