SQSS Modifications
You can raise a modification – or mod – when you want to propose a change to any part of the SQSS.
For more information or for help raising an SQSS modification, 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 | |
|---|---|---|---|---|
| Establishing ISOP in industry codes 2024 | Establishing ISOP in industry codes 2024 | Current | ||
| GSR030 | GSR030: Offshore DC Connections | Current | ||
| GSR028 | GSR028: Making the SQSS Gender Neutral | Concluded | ||
| GSR027 | GSR027: Review of the NETS SQSS Criteria for Frequency Control that drive reserve, response and inertia holding on the GB electricity system | Implemented | ||
| GSR026 | GSR026: Adding Non- Standard Voltages to the SQSS | Implemented | ||
| GSR022 | GSR022: Review of Security and Economy Required Transfer Conditions | Withdrawn | ||
| GSR025 | GSR025: Updating the SQSS to reflect the recent modification to Engineering Recommendation P28 | Implemented | ||
| GSR024 | GSR024: National Grid Legal Separation Changes | Implemented | ||
| GSR023 | GSR023: Clarification of the N-1-1 Requirements and minor housekeeping change | Implemented | ||
| GSR018 | GSR018: Treatment of Sub-Synchronous Oscillations SSO in the NETS SQSS | 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.
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.