Grid Code

The Grid Code is the technical code for connection and development of the National Electricity Transmission System (NETS).

The Grid Code Update Packs

PublishedName
Issue 5 Revision 22 - 16 May 2018
Issue 5 Revision 21 - 21 March 2017
Issue 5 Revision 20 - 20 February 2017
Issue 5 Revision 19 - 30 September 2016
Issue 5 Revision 18 - 11 August 2016
Issue 5 Revision 17 - 29 June 2016 (corrected 19 July 2016)
Issue 5 Revision 16 - 24 May 2016
Issue 5 Revision 15 - 3 February 2016 (corrected 16 March 2016)
Issue 5 Revision 14 - 26 August 2015
Issue 5 Revision 13 - 22 January 2015
Issue 5 Revision 12 - 01 November 2014 (corrected 06 November 2014)
Issue 5 Revision 11 - 21 August 2014
Issue 5 Revision 10 - 01 August 2014
Issue 5 Revision 9 - 01 July 2014
Issue 5 Revision 8 - 10 June 2014
Issue 5 Revision 7 - 31 March 2013
Issue 5 Revision 5 - 05 November 2013 (corrected 09 January 2014)
Issue 5 Revision 6 - 13 December 2013
Issue 5 Revision 4 - 19 August 2013
Issue 5 Revision 3 - 02 April 2013
Issue 5 Revision 2 - 31 January 2013
Issue 5 Revision 1 - 06 November 2012
Issue 4 Revision 13 - 07 June 2012
Issue 4 Revision 12 - 15 May 2012
Issue 4 Revision 11 - 16 March 2012
Issue 4 Revision 9 - 04 November 2011
Issue 4 Revision 8 - 23 September 2011
Issue 4 Revision 7 - 12 August 2011
Issue 4 Revision 6 - 18 July 2011
Issue 4 Revision 5 - 31 December 2010
Issue 4 Revision 10 - 03 January 2012
Issue 4 Revision 3 - 6 September 2010
Issue 4 Revision 2 - 22 March 2010
Issue 4 Revision 1 - 10 February 2010
Issue 3 Revision 35 - 1 May 2009
Issue 3 Revision 34 - 1 April 2009
Issue 3 Revision 33 - 16 March 2009
Issue 3 Revision 32 - 8 December 2008
Issue 3 Revision 31 - 13 October 2008
Issue 3 Revision 30 - 1 October 2008
Issue 3 Revision 29 - 1 September 2008
Issue 3 Revision 28 - 7 July 2008
Issue 3 Revision 27 - 27June 2008
Issue 3 Revision 26 - 1 April 2008
Issue 3 Revision 25 - 1 February 2008
Issue 3 Revision 24 - 19 November 2007
Issue 3 Revision 23 - 30 October 2007
Issue 3 Revision 22 - 17 September 2007
Issue 3 Revision 21 - 16 July 2007
Issue 3 Revision 20 - 1 April 2007
Issue 3 Revision 12 - 30 September 2005
Issue 3 Revision 19 - 1 January 2007
Issue 3 Revision 17 - 1 September 2006
Issue 3 Revision 16 - 30 May 2006
Issue 3 Revision 15 - 1 April 2006
Issue 3 Revision 10 - 1 June 2005
Issue 3 Revision 11 - 15 July 2005
Issue 3 Revision 14 - 3 March 2006
Issue 3 Revision 9 - 1 April 2005
Issue 3 Revision 8 - 30 March 2005
Issue 3 Revision 7 - 16 March 2005
Issue 3 Revision 6 - 4 March 2005
Issue 3 Revision 5 - 4 February 2005
Issue 3 Revision 4 - 19 January 2005
Issue 3 Revision 3 - 29 November 2004
Issue 3 Revision 2 - 11 October 2004
Issue 3 Revision 1 - 4 October 2004
Issue 3 Revision 13 - 9 January 2006
Issue 3 Revision 18 - 20 December 2006

The Grid Code Associated Documents

PublishedName
Open Letter on Grid Code Obligations
Control Persons
Guidance Notes - DC Converter Stations Issue 1
Managing the Number of Unit Starts Guidance Document
Information on TOGA Facilities
Integral Equipment Tests - Guidance Notes Issue 11 - February 2018
Examples of Generic BCA Templates
TOGA Interface Specification
System to Generator Operational Intertripping Schemes - Overview
Special Action Process
Open letter on Submission of Day Ahead Dynamic Parameters
NETA Despatch Instruction Guide - Issue 3
Guidance Notes for Non Embedded Customers - Submission of Grid Code Data
Guidance Notes for Network Operators - Submission of Grid Code Data
Guidance Notes for Generators - Submission of Grid Code Data
Guidance Notes - Synchronous Generating Units, Issue 12, September 2012
Guidance Notes - Power Park Modules, Issue 3, September 2012
Grid Code Capacity Terms
Good Industry Practice Safety Co-ordinator Training Notes
Good Industry Practice Safety Co-ordinator Training – Recommended Training
Good Industry Practice Safety Co-ordinator Training – Presentation
Fax Instructions for Simultaneous Tap Change Issue 3 - 10_01_2012
Elexon Interface Specification Issue 5 - 05_11_05
Data Validation, Consistency and Defaulting Rules Issue 9
Changes to OC1-OC2 and NGET's Internal Processes
BMRA and SAA Interface Specification Issue 16 - 25_07_2011
Access Procedure for National Grid Substation (External Employees)