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 Sort descending | Status | Last Updated | |
|---|---|---|---|---|
| GC0140 | GC0140: Grid Code Sandbox: enabling derogation from certain obligations to support small-scale trials of innovative propositions | Current | ||
| GC0141 | GC0141: Compliance Processes and Modelling amendments following 9th August Power Disruption | Implemented | ||
| GC0142 | GC0142: Adding Non-Standard Voltages to the Grid Code | Implemented | ||
| GC0143 | GC0143: Last resort disconnection of Embedded Generation | Implemented | ||
| GC0144 | GC0144: Alignment of Market Suspension Rights to the EU Emergency and Restoration Code Article 35.1(b) | Implemented | ||
| GC0145 | GC0145: Updating the Grid Code to include the Manually Activated Reserve Initiative (MARI) | Withdrawn | ||
| GC0146 | GC0146: Solutions for frequency control of Power Park Modules | Withdrawn | ||
| GC0147 | GC0147: Last resort disconnection of Embedded Generation – enduring solution | Implemented | ||
| GC0148 | GC0148: Implementation of EU Emergency and Restoration Code Phase II | Implemented | ||
| GC0149 | GC0149 - Grid Code changes to reflect the terms of the UK’s departure from the EU | Implemented |
More about modifications
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.
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.
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.