This page shows which Modifications and Change Proposals have been identified as impacting Unmetered Supplies Operators. Please note that the assessment of where impacts may affect certain roles within the electricity market may be amended during the course of the Change process.
P434 Half Hourly Settlement for UMS Metering Systems
This Modification will require a period of mandatory Change of Measurement Class (CoMC) activity for all Non-Half Hourly (NHH) Unmetered Supplies (UMS) Metering Systems to complete before the Market Wide Half Hourly Settlement (MHHS) migration to the Target Operating Model (Milestone 11 (M11) in the MHHS Timetable). At the time of writing, this would need to complete by October 2025. It will also require all new UMS connections to be settled Half Hourly (HH) from 12 months prior to M11, currently October 2024 (post CR055 decision).
P463 Introduce a Standard Change Process
To introduce a new change process – a ‘Standard Change’ process – into the BSC arrangements that would allow for certain, low risk, predictable and repeatable pre-authorised changes to be implemented without following the existing Change Proposal or Modification procedures.
P456 Enable Elexon to procure ancillary Technology Services for use by BSC Agents
Removing barriers in BSC Section E that would prevent Elexon updating BSC Agent contracts, therefore enabling BSC Agents to use Technology Services procured by Elexon. This should reduce costs for BSC Parties.
CP1565 Updates to address Central Management System issues
This CP seeks to update BSCP520 to contain clearly outlined processes for approval and fault reporting of Central Management Systems.
CP1546 ‘Introducing DTC flows to transfer UMS Summary Inventories and Control files’
CP1561 Updating SVA DC Volume 1 and 2 for CP1546
CP1561 looks to update the Supplier Volume Allocation (SVA) Catalogue Volume 1 and 2 to include the approved data flows and data items from CP1546.
CP1552 Reflecting BSCP501 timeframes in BSCP520 processes
CP1552 seeks to provide clarity to market participants about the timeframes for various processes in BSCP520 ‘Unmetered Supplies Registered in SMRS’.