Our RIIO-2 re-opener applications (2021-2026)

We've submitted applications for the following re-openers. More detail on re-openers can be found on the Ofgem website. This includes a list of all RIIO-2 re-openers in Appendix 1.

These re-openers are published in their entirety, with redactions having been made where appropriate, on the grounds of confidentiality, commercial sensitivity or security.

Please select the application you wish to view from the list below. 

Western Gas Network Project funded incremental obligated capacity re-opener application

Visit our Western Gas Network Project webpage, where you'll find all the relevant documents under the 'project documents' drop-down.

Western Gas Network Project


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About RIIO

National Gas Transmission operates as a natural monopoly and is regulated by Ofgem through a framework known as RIIO.

Find out more about RIIO