System Operator Transmission Owner Code

The System Operator Transmission Owner Code (STC) defines the relationship between the transmission system owners and the system operator.

ID Name Status Last updated Sort ascending
CM069 National Grid Legal Separation - consequential changes to incorporate NGESO in STC Sections & Schedules Current 15 May 2018
CM068 National Grid Legal Separation - consequential changes to reference NGESO in STC Section D and to provide clarity that only Transmission Owners create Transmission Investment Plans Current 15 May 2018
CM067 National Grid Legal Separation - consequential changes to reference NGESO into STC Section B and changes to STC Modification Panel membership to add NGESO as Member. Current 15 May 2018
CM066 National Grid Legal Separation - consequential changes to reference NGESO in STC Section G and to place Nuclear Site Licence Provisions Agreement obligations on NGET for England and Wales Current 15 May 2018
CM065 National Grid Legal Separation - consequential changes to reference NGESO in STC Section C and changes to Outage Planning Data Timescales. Current 15 May 2018
CM064 CM064 'Update to the STC Schedule 4,Boundaries of Influence' Current 14 May 2018
CM063 CM063 'Modify the definition of Force Majeure (Section J: Interpretation and Definitions)' Current 11 May 2018
PM091 PM091: Change of STCP20-1 Seven Year Statement to Electricity Ten Year Statement Concluded 27 Apr 2018
PM092 PM092: Change of STCP21-1 Offshore Development Information Statement to Network Options Assessment Concluded 27 Apr 2018
PM086 PM086: Difficulties in meeting the current year ahead data submission timelines in STCP11-1 Concluded 27 Apr 2018