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  • UINET An AVANGRID Company
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Suppliers and PartnersServices and ResourcesElectronic Data Interchange (EDI)

Electronic Data Interchange (EDI) Information


  • CT EBT Guide - 810
  • CT EBT Guide - 814
  • CT EBT Guide - 867
  • CT EBT Test Plan for UI ESPs - updated 01/03/2012
  • EDI Trading Partner Set-Up Information - updated 07/13/2018
  • UI 814 EDI transaction responses ("error codes")
  • United Illuminating Company Marketer Connectivity Profile EDI NAESB Worksheet - updated 06/09/2014

IN THIS SECTION

Electric Suppliers Aggregators

  • For Suppliers and Aggregators
    • Direct Billing vs. Consolidated Billing

    • Distribution Losses

    • Rate Information

    • Rate Maintenance

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      • UI RFP Load Data

      • Historical UI Load Data

      • Load Profiles

      • UI Filings for CT DPUC Docket No. 06-10-22

  • Public Disclosure

  • LREC/ZREC Program Information and Documents

  • Standard Service & Last Resort Service RFPs

  • Small ZREC Program

  • Year 9 RFP for LREC and ZREC

  • Year 1 RFP for SCEF

  • RFP for Combined Heat and Power Under Public Act 17-2

  • Services and Resources

    • Interconnection

    • Contractors

    • Electronic Data Interchange (EDI)

    • Meter Read and Holiday Schedules

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  • CT Code of Conduct

  • Information Releases to Generating Entity

  • Transactions with Generating Entity

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  • FAQ

    Frequently Asked Questions

    How do I enroll in My Account?

      Enrolling in My Account allows you to pay your UI bill at no charge using a checking or savings account. Credit or debit cards cannot be used to make payments from within My Account.

      To enroll in My Account, you will need the following information from your bill:

      • Account Number
      • Customer Name Key
      • Billing Address (where the bill is mailed to)

      If you are a new UI customer, you cannot enroll until you receive your first bill.  If you do not have a bill with your account number, send us an email via the Submit a Question, or contact us .

      When entering your Customer Name Key, enter the information in capital letters, exactly as it appears on your bill. When entering your account number, do not include dashes or spaces.

      If you get a message stating your account is already registered, contact us. Many customers have registered in the past to access UI's Bill Analyzer, and have forgotten their user id.

      Once enrolled, you can add additional UI accounts  to your profile.

      Once you have enrolled and activated the E-bill option, you can add bank information  and make online payments  to any UI account in your profile immediately.  Only payments from checking and savings accounts are possible through My Account. You cannot make payments using credit or debit cards through My Account.

      If you choose to pay your bill online, you will stop receiving bills in the mail. Instead, you will receive an email notifying you when your bill is ready.  You can still view and print your current and past bills from My Account.

      Once you have your information ready, enroll. 

    How do I setup recurring payments?

      Once you activate eBill for a UI account in your profile, you can add bank information and schedule recurring payments against any bank account in your My Account profile.  See How do I add or change bank account information? for more information and instructions on adding bank information.  Payment via credit or debit card is not available using My Account.

      To add a UI Account to your My Account profile, see How do I add a UI account to my profile?

      There are no fees to set up or make recurring payments.

      When eBill is active, you will no longer receive bills by mail for that account. My Account will send you an email each month informing you that your bill is ready for viewing online.

      When you set up recurring payments, payments for future bills will be created automatically.  To pay your current bill, you must schedule a payment separately.  See Can I pay my bill without any payment fees?  for instructions.  You will not receive notifications when payments are created for a particular bill.

      To set up recurring payments:

      • Login to My Account
      • If you have multiple UI accounts, select any account to display
      • Click the ‘Billing’ tab
      • Click the ‘Payment’ Tab within the ‘Billing’ tab
        • Click 'Add Recurring Payment'
      • Select the UI and bank accounts to use for making payments
      • Select payment options
      • Click the Submit button

      Payments can be scheduled up to and including the due date on your bill. Payments will be processed after business hours on the payment date, and appear on your account the following business day.

    How do I see my bill online?

      To view your bill in My Account, please upgrade to the latest browser version supported by your operating system and adjust your browser settings to allow third-party cookies. Safari users will need to un-check “Block cross-site tracking."

      For the fastest way to view and pay your bill, download our mobile app in the App Store or Google Play Store. The links to the app stores are at the bottom of all pages.


      When you click a button on our website to "View Bill," a document in Portable Document Format (PDF) is added to your downloads folder of your computer or device. For instructions on how to manage downloads in your browser, it is best to use the help feature. Here are some links that may also be helpful for the most popular browsers: 
      • Google Chrome https://support.google.com/chrome/answer/95759?hl=en
      • Firefox: https://support.mozilla.org/en-US/kb/where-find-and-manage-downloaded-files-firefox
      • Apple Safari Browser (all devices) https://support.apple.com/en-us/HT205751

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