Electronic Data Interchange


At Welsh Water we take a proactive approach to ensuring we can provide flexible billing options for our water customers.

We have recently expanded our flexible billing options which already include paper billing and consolidated billing and we have invested in developing our electronic billing (EDI) capabilities.

We are now able to provide e-billing to the UK industry standard, TRADACOMS 26 version 3 protocol.

EDI, also known as Electronic Data Interchange enables billing data to be sent directly from one computer system to another, eliminating paper, speeding up processing times and cutting costs associated with manual processing.

Eligibility Requirements

  • Must be a business customer with 10 or more sites within Welsh Waters operating area
  • Must be capable of receiving and processing TRADACOMS 26 version 3 protocol
  • Not suitable for trade effluent accounts

How Do I Apply for EDI?

To find out if you are eligible to receive EDI to replace your paper bills please complete the EDI application form below. Or if you have any questions please contact our Commercial Billing Team at edi@dwrcymru.com

Frequently Asked Questions

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EDI Terms and Conditions

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