Transmission charging methodology forum and CUSC Issues Steering Group

Transmission Charging Methodologies Forum (TCMF)

Established under the Connection and Use of System Code (CUSC) to provide a regular forum for discussion on the development of charging methodologies.

CUSC Issues Steering Group (CISG)

Where interested parties can raise general CUSC issues that aren't covered by any of the other groups established under the CUSC. 

About the meetings

If you're an existing or prospective user of the Connection and Use of System Code (CUSC), or a representative from an industry body, you're eligible to attend the forum meetings. Please note only one delegate per organisation can attend in person, however, there is no limit to attendance by Webex.

To find out more about how the meetings work, please read the TCMF Terms of Reference document

The chair is appointed by National Grid and is currently Jon Wisdom. If you would like to contact him, please email: [email protected].


Get involved

If you'd like to receive regular updates from us, including invitations to the meetings:

Subscribe to our mailing list

Dates of the meetings in 2019

Usually every second Wednesday of the month

16 January8 May - no meeting11 September
13 February12 June9 October
13 March10 July13 November - no meeting
10 April14 August - no meeting11 December


Meeting records - 2019

Find documents from the meetings, such as the agenda, meeting minutes, appendices and slides, below.


Meeting 96 - 12 June 2019

Please note: The Code Administration team now provides a CUSC Modifications Plan on a Page (POAP). This replaces the previous Code Modifications Appendices. You can use this document familiarise yourself with current modifications.

Meeting records archive

Find documents from the meetings which happened before the current year, below.

2017 - Meetings 70-80

  • Meeting 80 - 13 December 2017
  • Meeting 79 - 8 November 2017
  • Meeting 78 - 11 October 2017
  • Meeting 77 - 13 September 2017
  • Meeting 76 - 9 August 2017
  • Meeting 75 - 12 July 2017
  • Meeting 74 - 14 June 2017
  • Meeting 73 - 12 April 2017
  • Meeting 72 - 8 March 2017
  • Meeting 71 - 9 February 2017
  • Meeting 70 - 11 January 2017