Consultations and decisions (RIIO-T2)

Here you can view our consultations and decisions for the gas and electricity transmission network price control starting 2021 (RIIO-T2).

We are keen to ensure that we get feedback from a wide range of stakeholders as we develop the price controls. 

For information on our enhanced stakeholder engagement, see our RIIO policy challenge groups section and our RIIO-T2 events and working groups section.

For investor updates, see our Investor Relations section

RIIO-T2 price review timeline

  • Summer 2018: RIIO-2 framework consultation and decision. This stage encompassed a review of the overall RIIO framework so far and assessed if we needed to make any changes.
  • Winter 2018/19: RIIO-2 sector-specific methodology consultation. This stage encompassed setting the sector-specific price control methodologies for the gas distribution, electricity and gas transmission operators, and the electricity system operator.
  • Summer to autumn 2019: We asked network companies to submit their business plans and issued a call for evidence on stakeholder views on the plans.
  • Spring 2020: Ofgem RIIO-2 challenge group and network company customer engagement and user groups submitted independent reports on the proposed network company business plans. The aim of these independent groups is to ensure consumers have a stronger voice in challenging each network company on how their needs and views are accounted for in the plans.
  • Summer 2020: We publish our draft determinations on the price control allowances and consult on our proposals. 
  • Winter 2020: We publish our final determinations on the price control allowances. Subject to consultation, we expect to do this by December 2020.
  • 1 April 2021: Price control effective.

Publications and updates

  • Published: 9th Jul 2020
  • Closed: 4th Sep 2020
  • Consultations and responses
  • 39 Associated documents
Draft determinations for the RIIO-2 price controls running 2021-26 for the electricity and gas transmission networks, gas distribution networks and the electricity system operator.

  • Published: 4th Nov 2019
  • Open letters and correspondence
  • 1 Associated documents
On 30 October 2019 we sent an open letter to the CMA seeking clarification on price control appeals.

  • Published: 25th Oct 2019
  • Decisions
  • 12 Associated documents
We have made decisions on the ESO’s RIIO-2 financial methodology and roles framework.

  • Published: 24th Sep 2019
  • Open letters and correspondence
  • 1 Associated documents
Following on from our RIIO-2 Sector Specific Methodology Decision, this letter provides further clarification as to what we expect to see in the Electricity System Operator’s Early Competition Plan.

  • Published: 28th Aug 2019
  • Closed: 25th Sep 2019
  • Consultations and responses
  • 3 Associated documents
We confirm our approach to the ESO’s RIIO-2 funding model, and launch further consultations on the financial methodology and incentives design.

  • Published: 28th Jun 2019
  • Closed: 23rd Aug 2019
  • Consultations and responses
  • 3 Associated documents
This is our consultation on the cost assessment tools and techniques we intend to apply in setting the RIIO-2 price controls for the gas distribution and gas and electricity transmission networks.

  • Published: 24th May 2019
  • Decisions
  • 10 Associated documents
See our decision on the RIIO-2 Sector Specific Methodology.

  • Published: 18th Dec 2018
  • Closed: 14th Mar 2019
  • Consultations and responses
  • 20 Associated documents
A consultation on the sector methodology for RIIO-2.

  • Published: 30th Jul 2018
  • Decisions
  • 1 Associated documents
This is our decision on the framework we will use to set price controls for the companies that run the gas and electricity networks in Great Britain (RIIO-2).

  • Published: 7th Mar 2018
  • Closed: 2nd May 2018
  • Consultations and responses
  • 10 Associated documents
We are consulting on the framework to set the next round of price controls for the companies that operate the gas and electricity networks in GB.

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