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 | |
|---|---|---|---|---|
| CM066 | CM066: National Grid Legal Separation - consequential changes to reference NGESO in STC Section G and to place Nuclear Site Licence Provisions Agreement obligations on NGET for England and Wales | Implemented | ||
| CM065 | CM065: National Grid Legal Separation - consequential changes to reference NGESO in STC Section C and changes to Outage Planning Data Timescales | Implemented | ||
| CM063 | CM063: Modify the definition of Force Majeure (Section J: Interpretation and Definitions) | Implemented | ||
| CM098 | CM098: Updating STC Arrangements to replacing the Electricity Arbitration Association with the London Court of International Arbitration | Current | ||
| PM0134 – Introducing Competitively Appointed Transmission Owners & Transmission Service Providers | PM0134 – Introducing Competitively Appointed Transmission Owners & Transmission Service Providers | Current | ||
| CM094 | CM094 - Amendment to Bi-annual estimate provisions | Concluded | ||
| PM0126 | PM0126: Transmission Impact Assessment Process in relation to CMP298 | Implemented | ||
| PM0127 | PM0127: Improving TNUoS Predictability through Increased Notice of the Target Revenue & Inputs used in the TNUoS Tariff Setting Process | Withdrawn | ||
| CM086 | CM086: Introducing Competitively Appointed Transmission Owners & Transmission Service Providers | Current | ||
| CM087 | CM087: Introducing Connections Process to facilitate Competitively Appointed Transmission Owners | Current |
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.
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.
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.