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.
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.
For details on the Wind Grid Code please see the Renewables section
Grid Code
| Effective Date | |
|---|---|
| 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 | |
|---|---|
| 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 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
| MPID 187 HVDC | Effective Date |
|---|---|
| HVDC Post Workshop Modifications Paper GCRP 23 | 24-09-09 |
| HVDC Proposed Modifications Paper GCRP 22 | 29-04-09 |
| HVDC Actual Proposed Modifications GCRP 22 | 29-04-09 |
| HVDC Interconnector Addendum GCRP 22 | 29-04-09 |
| MPID 191 AGC Term Change | Effective Date |
|---|---|
| Replace SFRS with AGC Proposed Modifications Paper GCRP 22 | 29-04-09 |
| MPID 192 Secondary Fuel | Effective Date |
|---|---|
| Secondary Fuel Testing Proposed Modifications GCRP 22 | 29-04-09 |
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 |