Project TransmiT

In September 2010 we launched Project TransmiT, an independent and open review of electricity transmission charging and associated connection arrangements. The aim of the project was to ensure that we have in place arrangements that facilitate the timely move to a low carbon energy sector whilst continuing to provide safe, secure and high quality network services at value for money to existing and future consumers.

As a result of this review, we decided in July 2011 to focus on changes to the transmission charging arrangements and, having consulted with industry, launched a significant code review in July 2011. The resulting modification (CMP213) was raised by NGET in June 2012. A workgroup of industry specialists was appointed to develop the detail of the changes in respect of the three issues outlined in our direction:

  • better reflect the costs and benefits imposed by different types of generators on the electricity transmission network
  • take into account the potential Scottish island links that are being considered
  • take account of the development of “bootstrap” High Voltage DC (HVDC) links.

Industry developed a range of options for change and presented these to us in the Final Modification Report in June 2013. We issued an impact assessment and consultation on our minded-to position in August 2013. In light of the responses to this consultation, we issued a further consultation on additional new evidence in April 2014.

Having considered all the evidence, in July 2014 we decided to approve the option known as WACM 2 and implement this from April 2016. RWE’s appeal against this decision was dismissed by the Court on 23 July 2015. RWE have made us aware that they do not intend to intend to appeal the Court’s decision, and therefore the option will be implemented from April 2016.

Publications and updates

  • Published: 7th Aug 2015
  • News and blogs
  • 0 Associated documents
Our decision last year on Project TransmiT brought in changes to the transmission charging methodology to reflect both the location and type of generators.

  • Published: 25th Jul 2014
  • Decisions
  • 1 Associated documents
Project TransmiT identified defects in the transmission charging methodology.  An industry led process was establish to address the defects which led to several options for change being identified.  In August 2013 we published a consultation and analysis...

  • Published: 25th Apr 2014
  • Closed: 27th May 2014
  • Consultations and responses
  • 37 Associated documents
Project Transmit identified defects in the current transmission charging methodology. This triggered an industry led process which developed several options for change. In August 2013 we published a

  • Published: 14th Mar 2014
  • Open letters and correspondence
  • 1 Associated documents
This letter sets out an update of the progress of Project TransmiT. Project TransmiT is Ofgem’s review of electricity transmission charging arrangements.

  • Published: 16th Dec 2013
  • Open letters and correspondence
  • 1 Associated documents
We published our consultation on proposals to amend the electricity transmission charging methodology submitted to us by industry as part of CUSC modification proposal 213 (CMP213) on 1 August 2013. This letter gives an overview of progress to date, and...

  • Published: 13th Sep 2013
  • Open letters and correspondence
  • 1 Associated documents
We have decided that it would be proportionate to extend the consultation period by 2 weeks to assist stakeholders who consider that they need additional time to make their responses.

  • Published: 13th Aug 2013
  • Open letters and correspondence
  • 4 Associated documents
Dear colleague, We are holding an open event to discuss our impact assessment and minded to position in respect of CUSC Modification Proposal (‘CMP’) 213.  The event will be held from 10:30 – 13:30 on Friday 6 September at BIS Conference Centre, 1...

  • Published: 1st Aug 2013
  • Closed: 10th Oct 2013
  • Consultations and responses
  • 38 Associated documents
This document consults on proposals to amend the electricity transmission charging methodology that have been submitted to us by industry as part of CUSC modification proposal 213 (CMP213). It sets out our impact assessment and minded-to position.

  • Published: 25th May 2012
  • Decisions
  • 2 Associated documents
Direction to National Grid Electricity Transmission plc in relation to the Significant Code Review under Project TransmiT.

  • Published: 4th May 2012
  • Decisions
  • 1 Associated documents
Project TransmiT is Ofgem’s independent and open review of transmission charging and associated connection arrangements.

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