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 | |
|---|---|---|---|---|
| GC0101 | GC0101: EU Connection Codes GB Implementation – Mod 2 | Concluded | ||
| GC0102 | GC0102: EU Connection Codes GB Implementation – Mod 3 | Concluded | ||
| GC0103 | GC0103: The introduction of harmonised Applicable Electrical Standards in GB to ensure compliance with the EU Connection Codes | Current | ||
| GC0104 | GC0104: EU Connection Codes GB Implementation – Demand Connection Code | Concluded | ||
| GC0105 | GC0105: System Incidents Reporting | Concluded | ||
| GC0106 | GC0106: Data exchange requirements in accordance with Regulation (EU) 2017/1485 (SOGL) | Concluded | ||
| GC0107 | GC0107: The open, transparent, non discriminatory and timely publication of the generic and/ or PGM specific values required to be specified by the relevant TSO(s) and / or relevant system operator et al., in accordance with the RfG | Concluded | ||
| GC0108 | GC0108: EU Code: Emergency & Restoration: Black start testing requirement | Concluded | ||
| GC0109 | GC0109: Publication of the various GB electricity Warnings or Notices or Alerts or Declarations or Instructions or Directions etc. (“System Warning Alerts”) issued by or to the Network Operator(s). | Concluded | ||
| GC0110 | GC0110: LFSM-O compliance requirements for Type As and B PGMs | Concluded |
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.