RIIO-ED1 network price control

The RIIO-ED1 price control set the outputs that the 14 electricity Distribution Network Operators (DNOs) need to deliver for their consumers and the associated revenues they are allowed to collect for the eight-year period from 1 April 2015 to 31 March 2023.

RIIO-ED1 is the first electricity distribution price control to reflect the new RIIO (Revenue = Incentives + Innovation + Outputs) model for network regulation. RIIO is designed to drive real benefits for consumers. It provides the companies with strong incentives to step up and meet the challenges of delivering a low carbon, sustainable energy sector at value for money for existing and future consumers.
 
In February 2014 we published our decision to settle Western Power Distribution's price control early (termed 'fast-tracking'). We issued WPD’s licence conditions for RIIO-ED1 in May 2014.

In November 2014 we published our final settlements (final determinations) for the 10 companies remaining in the process. We issued their licence conditions implementing these determinations in February 2015.

Elements of the RIIO-ED1 price control were appealed to the Competition and Markets Authority (CMA) by a supplier, British Gas (BG) and a DNO, Northern Powergrid (NPg). The CMA published its decisions in September 2015. It upheld part of one of BG’s five grounds, and one of NPg’s three grounds. The decision on BG’s appeal applies to the 10 slow-track DNOs. NPg’s decision only applies to its two licensees. We have amended the licences according to the CMA’s orders, which we have published for reference below. The latest version of the licences can be accessed from the electronic public register.

Publications and updates

  • Published: 9th Mar 2020
  • Closed: 6th Apr 2020
  • Consultations and responses
  • 12 Associated documents
See our notice proposing modifications to the Regulatory Instructions and Guidance for RIIO-ED1.

  • Published: 26th Sep 2019
  • Decisions
  • 3 Associated documents
Decision on changes to the Losses Discretionary Reward for Tranche 3

  • Published: 5th Sep 2019
  • Charts and data
  • 1 Associated documents
This is the ED1 Price Contol Financial Model that we intend to use for the Annual Iteration Process planned to take place by 30 November 2019.

  • Published: 5th Sep 2019
  • Decisions
  • 4 Associated documents
Decision to modify the ED1 Price Control Financial Instruments to give effect to our decision on allowed costs for Scottish Hydro Electric Power Distribution (SHEPD) for the Shetland Extended Interim Energy Solution.

  • Published: 5th Sep 2019
  • Decisions
  • 1 Associated documents
Direction to modify the ED1 Price Control Financial Model to facilitate Scottish Power Manweb’s (SPMW) recovery of allowed expenditure in respect of Link Box Costs

  • Published: 15th Aug 2019
  • Closed: 12th Sep 2019
  • Consultations and responses
  • 5 Associated documents
Consultation setting out our proposed changes to the Losses Discretionary Reward (LDR) guidance document.

  • Published: 6th Aug 2019
  • Open letters and correspondence
  • 3 Associated documents
Proposed modifications to the ED1 Price Control Financial Model to facilitate Scottish Power Manweb’s (SPMW) recovery of allowed expenditure in respect of Link Box Costs

  • Published: 25th Jul 2019
  • Closed: 23rd Aug 2019
  • Consultations and responses
  • 5 Associated documents
We are proposing modifications to the ED1 Price Control Financial Instruments to give effect to our decision on allowed costs for Scottish Hydro Electric Power Distribution (SHEPD) for the Shetland Extended Interim Energy Solution.

  • Published: 7th Jun 2019
  • Closed: 5th Jul 2019
  • Consultations and responses
  • 6 Associated documents
This letter seeks stakeholders’ views on an application from Electricity North West Limited (ENWL) for a Relevant Adjustment under the Innovation Roll-out Mechanism (IRM) of £15.09m (2012/2013 prices).

  • Published: 30th Apr 2019
  • Decisions
  • 5 Associated documents
This direction introduces Regulatory Financial Performance Reporting (RFPR ) as part of the Electricity Distribution and Transmission Regulatory Instructions and Guidance (RIGs).

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