RIIO-3 Final Determinations – initial review
Ofgem has published its RIIO-3 Final Determination for the Gas Distribution, Gas Transmission and Electricity Transmission sectors, which details its decisions on revenue allowances, investment packages and resulting network charges between 2026 and 2031.
This followed the Draft Determination released earlier in the year, which set out Ofgem’s initial proposals. We supported several companies in responding to those proposals, including Cadent, SGN, NGN, Wales & West, National Gas and SPEN.
We are pleased to share our initial review of Ofgem’s decisions on costs, uncertainty, and finance issues – including how they compare to its Draft Determination proposals and company submissions.