Grid Code Modifications
You can raise a modification – or mod – when you want to propose a change to any part of the Grid Code.
For more information, please contact [email protected].
Search for any current or concluded modifications by name or ID. You can sort mods by ID, name, status or date of update. Or filter according to status.
| ID | Name | Status | Last Updated Sort ascending | |
|---|---|---|---|---|
| GC0132 | GC0132: Updating the Grid Code governance process to ensure we capture EBGL change process for Article 18 Terms and Conditions (T&Cs) | Implemented | ||
| GC0129 | GC0129 - Updating the Grid Code to use Engineering Recommendation G5/5 - Harmonics | Implemented | ||
| GC0105 | GC0105: System Incidents Reporting | Implemented | ||
| GC0096 | GC0096: Energy Storage | Implemented | ||
| GC0135 | GC0135 - Removal of Redundant Provisions | Implemented | ||
| GC0128 | GC0128 EU Code Emergency & Restoration: Requirements resulting from System Restoration Plan | Implemented | ||
| GC0127 | GC0127 EU Code Emergency & Restoration: Requirements resulting from System Defence Plan | Implemented | ||
| GC0125 | GC0125 EU Code Emergency & Restoration: Black Start testing requirements for Interconnectors | Implemented | ||
| GC0123 | GC0123 Clarifying references to NGET and Relevant Transmission Licensees | Implemented | ||
| GC0124 | GC0124 Critical Friend review period for submission of new modifications | Implemented |
More about modifications
Modification Tracker
Our Tracker gives you the latest details on current code modifications including the purpose and the stakeholders it affects, as well as panel comments and where it is in the review process. It is published on the 7th (or next working day) of each month.
Raise a modification
If you're thinking about raising a modification, please get in touch with us. Our experts can give you advice on your Proposal, explain how the modification process works and help to answer any questions you may have. When we receive your Proposal, we'll check it through and work together to make sure it's easy to understand.
Calendar
Once you've been in touch and are ready to write your Proposal paper, send it to us by the monthly modification submission date which you can find on our Calendar.