STC Code Documents

All documents relating to the STC are available here to download. Including the latest version of the code itself, in full, and details of any revisions.

For more information about the code, please contact [email protected] 

STC Documents

Name Published
Schedule A - List of Parties 16 Jan 2025
Section K - Technical Design and Operational Criteria and Performance Requirement for Offshore Transmission Systems 15 Nov 2024
Complete STC - 15 November 2024 15 Nov 2024
STC Index of Revisions v22 15 November 2024 15 Nov 2024
Section J Interpretation and Definitions v26 31 Oct 2024
Section D - Planning Co-ordination v15 30 Aug 2024
Section G - General Provisions v10 30 Aug 2024
Schedule 15 – Transmission Interface Agreement v3 30 Aug 2024
Section B - Governance v24 30 Aug 2024
Schedule 2 List of STC Procedures v49 13 Jun 2024

STC Procedures

Name Published
STCP19-3 Operational Notification and Compliance Testing Issue 13 Jun 2024
STCP18-4 - Request for a Statement of Works Issue 007 11 June 2024 11 Jun 2024
STCP19-6 - Application Fee Refresh Template Issue 0010 12 April 2024 12 Apr 2024
STCP11-2 Outage Data Exchange Issue 0010 12 Apr 2024
STCP08-2 - Circuit Live Trip and DAR Tests Issue 008 12 Apr 2024
STCP11-1 Outage Planning Issue 0010 12 April 2024 12 Apr 2024
STCP18-7 issue 001 Queue Management Co-ordination Procedure 13 Mar 2024
STCP01-01 Issue 0012 Operational Switching 04 March 2024 4 Mar 2024
STCP06-2 De-synchronised Island Management Issue 007 04 March 2024 4 Mar 2024
STCP04-6 Issue 005 Offshore Datalink Functional Specification for Telecontrol Communication Interface 4 Mar 2024