Decision published on Regulatory Instructions and Guidance for gas distribution network operators

Today, the Utility Regulator is publishing a decision regarding the revision of the annual reporting requirements for the gas distribution network operators (GDNs).

This document sets out the changes made to the Regulatory Instructions and Guidance for the annual reporting of gas GDNs costs and outputs. It details the changes from the previous guidance, rationale for changes and responses received to the consultation.

Accompanying the main decision document are the final versions of:

  • GD23 Annual Cost Reporting Guidance
  • GD23 Annual Cost Reporting Templates:
    • Evolve version
    • Firmus Energy version
    • Phoenix Energy version

The publication of our decision follows a consultation published in February 2024. We received three responses which are available below: 


Firmus Energy

Phoenix Energy

Copies of all documents will be made available in large print, Braille, audio cassette and a variety of relevant minority languages if required.