Our RIIO-GT3 Business Plan sets out our proposals to secure Britain's energy through efficient investment in the gas National Transmission System (NTS). It was shaped through extensive engagement with customers, consumers, stakeholders and regulators, and is fully aligned to the four key outcomes identified by Ofgem as priorities for the sector.

We are pleased Ofgem has recognised the quality of our Business Plan and the critical role that the gas transmission system plays in Britain’s energy security, economic prosperity and clean power ambitions. 

Furthermore, we welcome the feedback from Ofgem on the areas where we can provide further evidence to demonstrate the case for additional investment for the security of Britain’s energy supply and the benefit of consumers.

Over the coming weeks, we will work closely with Ofgem to progress towards a final determination which enables us to deliver for our customers, invest with confidence and offer value for money for British consumers.

You can find out more about our RIIO-GT3 Business Plan (2026-2031) here.