RIIO-3 Final Determinations for the Electricity Transmission, Gas Distribution and Gas Transmission sectors
- Publication type:
- Decision
- Publication date:
- Topic:
- Energy network price controls, Electricity transmission, Gas transmission, Gas distribution
- Industry sector:
- Transmission Network,
- Distribution Network
Our Final Determination decisions for the network price controls between 1 April 2026 and 31 March 2031 (RIIO-3).
RIIO (Revenues = Incentives + Innovation + Outputs) is our framework to ensure that the monopoly companies operating our gas and electricity networks have sufficient revenue to invest in and run their networks, and deliver what customers value.
The current electricity and gas transmission and gas distribution price controls (known as RIIO-2) end on 31 March 2026. The next price control (RIIO-3) will run for five years, from 1 April 2026 to 31 March 2031. Following our review of the responses to our RIIO-3 Draft Determinations consultation, we are now publishing our Final Determinations for RIIO-3.
Note: some of the Excel files in the 'RIIO-3 Final Determinations financial models' folder attached below are not fully accessible. If you require an alternative format, please contact RIIO3@ofgem.gov.uk.