Modifications to the RIIO-3 licences and associated documents
- Publication type:
- Consultation
- Publication date:
- Closed date:
- Status:
- Closed (with decision)
- Topic:
- Energy network price controls
- Subtopic:
- RIIO-3
We are seeking views on the proposed modifications to the licences for the RIIO-3 Price Control.
Details of outcome
We published a statutory consultation on 16 December 2025 on proposed changes to the licence conditions required to implement the RIIO-3 price control settlement for electricity transmission, gas transmission and gas distribution networks.
The consultation closed on 16 January 2026. Following careful consideration of responses, we have decided to implement the licence modifications as set out in the notices below. The licence modifications will come into effect on 1 April 2026.
In December 2025 we also consulted on a number of associated documents, which set out the detailed methodologies and guidance that support the licence conditions.
Our decisions on these will follow in Spring 2026.
Read the full outcome
Note: some of the files attached below are not fully accessible. If you require an alternative format, please contact RIIO3@ofgem.gov.uk.
Consultation description
This statutory consultation sets out the proposed changes to the licence conditions required to implement the RIIO-3 price control settlement for the transmission companies, gas distribution networks and the electricity system operator. This includes changes to the Special Conditions as well as some of the Standard and Standard Specials.
We are also consulting on a number of the associated documents that help support these licence modifications.
Who should respond
We welcome responses from:
- transmission network operators
- gas distribution network operators
- National Energy System Operator (NESO)
- anyone with an interest in the RIIO-3 Price Control