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 | |
|---|---|---|---|---|
| GC0162 | GC0162: Changes to OC6 to amend the operational timings for the delivery of the additional demand reduction above 20%, with a focus between 20% and 40% | Concluded | ||
| GC0038 | GC0038: Electricity Balancing System Group EBSG | Concluded | ||
| GC0076 | GC0076: Grid Code Limits on Rapid Voltage Changes | Concluded | ||
| GC0099 | GC0099: Establishing a common approach to interconnector scheduling consistent with the single intraday market coupling processes set out within Regulation EU 2015 1222 CACM | Concluded | ||
| GC0115 | GC0115: Legal Separation housekeeping: NGET to The Company | Concluded | ||
| GC0131 | GC0131: ‘Quick Win’ Improvements to Grid Code Open Governance Arrangements | Concluded | ||
| GC0147 | GC0147: Last resort disconnection of Embedded Generation – enduring solution | Concluded | ||
| GC0042 | GC0042: Information on Small Embedded Power Stations and Impact on Demand | Concluded | ||
| GC0077 | GC0077: Suppression of Sub-Synchronous Resonance from Series Capacitive Compensation | Concluded | ||
| GC0103 | GC0103: The introduction of harmonised Applicable Electrical Standards in GB to ensure compliance with the EU Connection Codes | Current |
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.