RIIO-2 2021 - 2026

Ofgem announced in December 2020 its final determinations of our Gas business plan for the RIIO-2 regulatory period covering 2021 to 2026. Ofgem’s regulatory framework is known as RIIO (Revenue = Incentives + Innovation + Outputs). The RIIO model offers network companies incentives for innovation and securing investment, so they can develop sustainable energy networks at the lowest cost for current and future customers.

Final determinations

Ofgem published their final determinations on Tuesday 8 December 2020.

Read our statement

More information


RIIO-2 Statutory Licence Consultation

We responded to Ofgem’s RIIO-2 Statutory Licence Consultation. This response was on behalf of National Grid Electricity Transmission plc (NGET) and National Grid Gas plc (NGGT), as it took place before National Gas came into being. You can read the following response documentation:

Executive Summary

Download the following Annexes

  • Annex Chapter 1-9 of the Special Conditions
  • Annex Special Conditions being removed
  • Annex Standard and Special Conditions being modified
  • Annex PCFH
  • Annex PCFM.

National Grid Gas Transmission Independent Group

This was the Independent Group responsible for scrutinising the RIIO 2 business plan and challenging how the business engaged with stakeholders. As the Independent Group, they represented a cross-section of the energy industry and beyond, bringing individual expertise and experience across a broad range of energy issues.

Independent User Group


Previous information:

We want to be as transparent as possible so have provided a historical record below of everything that we published as a gas business during RIIO 2.

Business plan - video introduction

In this video, Nicola Shaw, Executive Director for National Grid and David Wright, Director of Electricity Transmission, talk through our business plan.

Women meeting in an office

Business planning (RIIO)

We developed our business plan against a background of rapid change in the energy industry.

RIIO-2 business plan - supporting videos

These videos provided context and highlights of the business plans that we submitted to Ofgem before their final determinations.


How you shaped our business plan

Over the last few years, we carried out our most extensive ever engagement exercise to understand your priorities and future requirements.

People in office

One-stop shop for stakeholders

Our stakeholders are important to us. Find all you need to know at our page for Gas Transmission stakeholders.


Contact us

Have any questions or comments? Get in touch and we'll come back to you. Email us