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.

Modification status
ID Name Status Last Updated Sort ascending Link to modification
CM0104 CM0104: Due Date for Monthly Payments to Transmission Operators (TOs) Current view
PM0151 PM0151: Introducing Competitively Appointed Transmission Owners to TO Lists on all Definitions Implemented view
CM0105 CM0105: Standardisation of Power Flow Metering Polarity Current view
CM0103 CM0103 - STC Consequential Modification for CMP447 (Follow on Modification to CMP428) Current view
PM0149 PM0149: Reconciliation – Change to STCP 19-2 Implemented view
CM093 - Extending the principles of the User Commitment Methodology to Final Sums Methodology as a consequence of CUSC Modification – CMP417 CM093 - Extending the principles of the User Commitment Methodology to Final Sums Methodology as a consequence of CUSC Modification – CMP417 Current view
PM0150 PM0150: Due Date for Monthly Payments to Transmission Owners (TOs) Current view
PM0133 PM0133: Network Services Feasibility Studies Current view
PM0133 - Pathfinder feasibility studies PM0133 - Network Services Feasibility Studies Current view
CM096 CM096 Application of Gate 2 Criteria to existing contracted background Withdrawn view

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.