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 | |
|---|---|---|---|---|
| GC0079 | GC0079: Frequency Changes during Large Disturbances and their effect on the total system - Phase 1 & 2 | Concluded | ||
| GC0073 | GC0073: Code Governance Review Phase 2 Send Back Process | Concluded | ||
| GC0036 | GC0036: Review of Harmonics Assessment Standards and Processes | Concluded | ||
| GC0074 | GC0074: GCRP Membership | Concluded | ||
| GC0113 | GC0113: The open, transparent, non-discriminatory and timely publication of the generic and user specific values required to be specified by the relevant TSO(s) and / or relevant system operator et al., in accordance with the DCC | Concluded | ||
| GC0037 | GC0037: Offshore Balancing Mechanism Unit Configuration | Concluded | ||
| GC0075 | GC0075: Hybrid Static Compensators | Concluded | ||
| GC0038 | GC0038: Electricity Balancing System Group EBSG | Concluded | ||
| GC0076 | GC0076: Grid Code Limits on Rapid Voltage Changes | Concluded | ||
| GC0042 | GC0042: Information on Small Embedded Power Stations and Impact on Demand | Concluded |
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.
Modification Proposal Form
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.