BSC Changes impacting a Licensed Distribution Systems Operator
This page shows which Modifications and Change Proposals have been identified as impacting a Licensed Distribution Systems Operator. 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.
P441 ‘Creation of Complex Site Classes’
This Modification looks to progress a recommendation of the Issue 88 Workgroup to introduce Complex Site classes. These classes would categorise the types of Complex Site, each having clearly defined criteria within the BSC. A new “type” of Complex Site (referred to as a Class 6 Complex Site) to allow approval of ”non-standard” complex sites would also be introduced.
P441 would also clarify when the netting of Imports from Exports for multiple Metering Systems registered in Supplier Volume Allocation (SVA) is permitted.
This change would facilitate consistency across the market and as so called “Local Energy Schemes” become more popular, rules for when netting are permitted would be clearly defined going forward.
CP1567 ‘New BSC Procedure (BSCP) for Assurance Information Requests (AIRs)’
The AIR is a Performance Assurance Technique (PAT) which was introduced in May 2022. Currently there is no related BSCP for an AIR, therefore when issuing an AIR, there is no written obligation on Parties to adhere to the request.
CP1559 ‘Complex Sites Process Improvements’
This Change Proposal will deliver improvements to the Complex Sites process.
P427: Publication of Performance Assurance Parties’ impact on Settlement Risk
This Modification seeks to amend BSC Section Z to allow the Performance Assurance Board (PAB) to recommend that the Panel publish notices to industry in respect of Performance Assurance Parties’ (PAPs’) contribution to Settlement Risk along with relevant risk data.
CP1563 ‘Altering the Trigger Point and subsequent Timescales for Commissioning SVA CT Operated Metering Systems and issue of Data Flow’
CP1563 seeks to update some of the trigger points for Current Transformer (CT) Commissioning and subsequent sending of data flows as the Proposer considers that they are not appropriate for CT operated metering systems of all types.
P438 ‘Amending the BSC to address sanction orders’
This Modification would allow Elexon to seamlessly give effect to sanctions orders.
P436 ‘Consequential BSC changes for Switching SCR (REC 3.0)’
Ofgem’s Switching Significant Code Review (SCR) will introduce the new Central Switching Service (CSS) and version 3.0 of the Retail Energy Code (REC 3.0). P436 progresses the consequential BSC changes needed to align with REC 3.0.
P437 ‘Allowing non-BSC Parties to request Metering Dispensations’
This Modification proposes to introduce a provision in Section L ‘Metering’ to allow the relevant Meter Operator Agent to apply for Metering Dispensations on behalf of a non-BSC Party.
CP1558 ‘New Registration data items to facilitate MHHS’
This Change Proposal will introduce new Registration Service data items and supporting BSC processes into existing Supplier Meter Registration Service (SMRS) systems.
CP1554 ‘Future proofing the measurement transformer standards’
CP1554 looks to future proof the measurement transformer standards in Code of Practices 1, 2, 3, 4, 5 and 10
CP1553: Meters and Current Transformers minimum accuracy classes
This Change proposal looks to tighten the requirements for Meters and Current Transformers in the Code of Practice.
CP1550: Updates to monitoring of voltage failure alarms requirements
This Change Proposal looks to simplify the management of phase failures and update the requirements of voltage failure alarms.
P432 ‘Half Hourly Settlement for CT Advanced Metering Systems’
This Modification proposes to align the BSC definition of an Advanced Meter with that in the Standard License Conditions (SLC) and to set explicit Half Hourly (HH) Settlement obligations for Current Transformer (CT) Advanced Meters ahead of the migration to Market-wide Half-Hourly Settlement (MHHS).
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 running from October 2023 to October 2024. It will also require all new UMS connections to be settled Half Hourly (HH) from October 2023.
CP1560 ‘Demand Control Event Process Clarifications’
This CP seeks to clarify the processes that take place after a Demand Control Event by amending the relevant Code Subsidiary Documents to ensure clarity and consistency.
CP1555 ‘Consumption data for Measurement Classes G and F’
This CP proposes to update the requirements in BSCP502 to require HHDCs to send D0036 or D0275 for non-Data Communications Company (DCC) enrolled Metering Systems and/or D0380 for DCC enrolled Metering Systems to Licenced Distribution System Operators (LDSOs).
P416 Introducing a route of appeal for the Annual Budget in line with the proposals for the Retail Energy Code
P416 seeks to amend the BSC to include an appeals mechanism that BSC Parties could use to challenge items in the Annual Budget.
CP1547 ‘Clarification on Site Specific LLF Calculation Process for Embedded LDSOs’
CP1547 seeks to provide clarity for Embedded LDSOs that choose to calculate Site Specific Line Loss Factors rather than Mirroring, through updates to BSCP128.
P424 ‘Re-insert correct definition of Settlement Error’
P423 ‘Market-wide Half Hourly Settlement (MHHS) Implementation and Governance Arrangements’
CP1537 ‘Extending the Timescales for agreeing Technical Assurance of Performance Assurance Parties (TAPAP) Findings Reports’
P420 ‘Retail Code Consolidation Significant Code Review’
P413 ‘Market-wide Half Hourly Settlement Programme Manager’
P379 ‘Multiple Suppliers through Meter Splitting’
CP1539 ‘Inclusion of LCCC as an Affected party in Metering Dispensation applications’
CP1530 ‘Introduction of a formalised process for the validation of measurement transformer ratios by Elexon’
P402 ‘Enabling reform of residual network charging as directed by the Targeted Charging Review’
Following the conclusion of its Targeted Charging Review Significant Code Review , Ofgem directed National Grid and certain LDSOs to make changes to how residual revenues are recovered through Distribution Use of System (DUoS) and Transmission Network Use of System (TNUoS) demand charges.
P405: Allow notices via email where currently prohibited
P405 will allow notices that the BSC currently requires to be sent by post or fax to be sent by email.