Grid Code
Grid Code
The Grid Code is critical to the operation of the power system in a liberalised energy market. This technical document establishes the rules governing the operation, maintenance and development of the transmission system and sets out the procedures for governing the actions of all transmission system users. The document ensures that all users are treated in a transparent and equitable manner. For the purposes of the Grid Code, a user is defined as any party using the transmission system.
Following an extensive consultation and review period with the Wind Grid Code Consultation Group and the general public the Wind Grid Code was approved by the CER on 1st July 2004. The Wind Grid Code now forms an integral part of the overall Grid Code.
EirGrid is responsible for the development and maintenance of the Grid Code through the Grid Code Review Panel (GCRP). The GCRP is a standing body mandated to review and discuss the Grid Code, its workings and offer suggestions for amendments to the Code. Any subseqent modifications, updates and derogation requests must be approved by the CER. It is important to note that the Grid Code is not intended to describe aspects of market operation or the rules for trading and settlement, these are contained in the Trading and Settlement Code.
Grid Code
| Effective Date | |
|---|---|
| Grid Code v3.5 | 15-03-11 |
| Approved Modifications Grid Code v3.5 | 15-03-11 |
| Grid Code v3.4 | 16-10-09 |
| Approved Modifications Grid Code v3.4 | 16-10-09 |
| Grid Code v3.3 | 30-01-09 |
| Approved Modifications Grid Code v3.3 | 30-01-09 |
| Grid Code v3.3 Wind Code Only | 30-01-09 |
| Grid Code v3.2 | 21-08-08 |
Derogations
| Effective Date | |
|---|---|
| The Process for the Treatment of Derogation Applications | 09-08-10 |
| Register of Derogations v9 | 06-07-11 |
| Register of Derogations v8 | 07-06-11 |
| Register of Derogations v7 | 24-03-11 |
| Register of Derogations v6 | 23-11-10 |
| Register of Derogations v5 | 30-08-10 |
| Register of Derogations v4 | 25-11-09 |
| Register of Derogations v3 | 22-07-09 |
| Register of Derogations v2 | 31-04-09 |
Grid Code Review Panel (GCRP Documents)
| Effective Date | |
|---|---|
| GCRP 29 Minutes Final Version | 14-11-11 |
| JGCRP 8 Minutes Final Version | 14-11-11 |
| GCRP 28 Minutes Final Version | 06-07-11 |
| GCRP 27 Minutes Final Version | 27-04-11 |
| JGCRP 7 Minutes Final Version | 05-04-11 |
| GCRP 26 Minutes Final Version | 01-12-10 |
| JGCRP 6 Minutes Final Version | 01-12-10 |
| GCRP 25 Minutes Final Version | 11-08-10 |
| JGCRP 5 Minutes Final Version | 30-06-10 |
| GCRP 24 Minutes Final Version | 23-02-10 |
| JGCRP 4 Minutes Final Version | 23-02-10 |
| GCRP 23 Minutes Final Version | 29-10-09 |
| JGCRP 3 Minutes Final Version | 29-10-09 |
| GCRP 22 Minutes Final Version | 29-05-09 |
| JGCRP 2 Minutes Final Version | 29-05-09 |
Grid Code Modifications
| Register of GCRP Modifications | Effective Date |
|---|---|
| Register of Mods 23-29 version 2 | 12-01-12 |
JGCRP 2
| Effective Date | |
|---|---|
| SDC1 4 4 5 - SEM General Direction - SEM-08-179 _7 JGCRP 2 | 29-04-09 |
Constitution & Rules GCRP
| Effective Date | |
|---|---|
| Constitution & Rules of the Grid Code Review Panel v4 | 30-01-09 |
| Constitution and Rules of the Joint Grid Code Review Panel version 1 | May 2008 |
Grid Code Forms
| Effective Date | |
|---|---|
| Derogation Application Form | 09-10-08 |
| Derogation Application Form - Microsoft Office Format | 09-10-08 |
| Modification Proposal Form | 09-10-08 |
| Modification Proposal Form - Microsoft Office Format | 09-10-08 |
Policy and Interpretation
| Effective Date | |
|---|---|
| Clarification of Clause CC.7.3.1.1(s) W2E Plant | 20-01-12 |
| EirGrid Remote Control of Generation Stations Practice v1 | 25-08-10 |
| Clarification of the term major Outage | 29-09-10 |