STC Modifications
You can raise a modification – or mod – when you want to propose a change to any part of the STC.
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 | |
|---|---|---|---|---|
| PM084 | PM084: Improvements to Revenue Forecast Information Provision under STCP24-1 | Concluded | ||
| PM0101 | PM0101: STCP09-1 'Update of procedure on ‘Safety Co-ordination between Parties’ covering HV proximity safety management and testing' | Concluded | ||
| CM072 | CM072: STC changes in the event the UK leaves the EU without an agreement | Concluded | ||
| PM0119 | PM0119: TNUoS Revenue Collection Risk Transfer | Concluded | ||
| CM085 | CM085: To clarify OFTO reactive power requirements at <20% output | Current | ||
| CM061 | CM061: This proposal seeks to modify the System Operator Transmission Owner Code (STC) to align the elections process to those in the SQSS to allow for an 'Alternative OFTO Election Process' and extend the term of office from one year to two years | Concluded | ||
| PM085 | PM085: Modification to STCP04-3 to include a Power Available signal in Appendix B4.1 | Concluded | ||
| CM063 | CM063: Modify the definition of Force Majeure (Section J: Interpretation and Definitions) | Concluded | ||
| CM070 | CM070: Consequential STC Updates following implementation of RfG and HVDC into the GB Grid Code | Concluded | ||
| CM079 | CM079: Consideration of STC/STCP changes in relation to CMP330/374 | 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.
STCP Modification Proposal Form
Download the STCP Proposal form, when we receive your Proposal, we'll check it through and work together to make sure it's easy to understand.
STC Modification Proposal Form
Download the STC Proposal form, 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.