List of all BSC Modifications
These pages list all Modifications issued since 2010. Modification are raised to introduce changes that would alter any part of the BSC or any CSDs or BSC Systems impacted by the proposed changes.
P440 ‘Enabling Elexon to administer the Capacity Market Advisory Group’
The BSC does not currently allow Elexon to undertake administrative activities that would support the Capacity Market Advisory Group (CMAG). This does not align to Ofgem’s decision to appoint Elexon to undertake the CMAG administrative activities on its behalf.
P439 ‘Enabling EDA-based Data Integration Platform Development’
This Modification makes changes to the Balancing and Settlement Code (BSC) to enable Elexon, in its capacity as the Market-wide Half Hourly Settlement (MHHS) Implementation Manager, to develop the Event Driven Architecture (EDA) based system for MHHS, which will be known as the Data Integration Platform (DIP).
P438 ‘Amending the BSC to address sanction orders’
This Modification would allow Elexon to seamlessly give effect to sanctions orders.
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.
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.
P435 ‘Enabling EMRS to undertake preparatory work for potential future settlement services to LCCC’
This Modification proposes to extend Elexon Vires through its wholly-owned subsidiary company Electricity Market Reform Settlement (EMRS) Limited.
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.
P433 ‘P375-P420 Legal Text Alignment’
P433 seeks to ensure that the Legal Text for Approved Modification P375 ‘Settlement of Secondary BM Units using metering behind the site Boundary Point’ is aligned with the BSC baseline introduced by the implementation of P420 ‘Retail Code Consolidation Significant Code Review’. This Modification will correct a number of manifest errors introduced into the P375 legal text by P420 and will therefore allow the implementation of the P375 Legal Text in the BSC on the P375 Implementation Date.
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).
P431 ‘Post Brexit Agreement Updates’
As a result of the UK leaving the EU, Great Britain (GB) is no longer part of the Internal Energy Market and updates are required to the BSC to ensure that the legal text appropriately reflects these changes.
P430 ‘Extension of P375 to include Suppliers’
P430 seeks to extend the solution to Approved Modification P375 ‘Settlement of Secondary BM Units using metering behind the site Boundary Point’ to allow Suppliers to register Asset Meters and allocate Asset Metering System Identifier (AMSID) Pairs to Secondary Balancing Mechanism Units (SBMUs).
P429 ‘Switching off Participant-Reported PARMS Serials’
P429 will permanently cease the operation of, and remove the obligations associated with, participant-reported Performance Assurance Reporting and Monitoring System (PARMS) Serials and associated Supplier Charges.
P428 ‘Correction to P376 Legal Text’
This Modification is required to correct an error contained within the approved legal drafting for P376. This Proposal will ensure that Virtual Lead Parties (VLPs) do not need to submit the status of Metering System Identifier (MSID) pairs contained within secondary Balancing Mechanism (BM) Units that do not use the baselining methodology introduced in the P376 solution.
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.
P426 ‘Combining related BSC Parties’ Energy Indebtedness positions for the Credit Cover Percentage calculation’
This Modification proposes to remove inefficiencies with the Credit Cover calculation by allowing related BSC Parties to combine their Energy Indebtedness prior to calculating the Credit Cover Percentage.
P425 ‘Single Supplier Shared SVA Meter Arrangements’
This Modification aims to reduce the requirement from two or more Suppliers, to one or more Suppliers, to be involved in a Shared Supplier Volume Allocation (SVA) Metering Arrangement.
P424 ‘Re-insert correct definition of Settlement Error’
P423 ‘Market-wide Half Hourly Settlement (MHHS) Implementation and Governance Arrangements’
P422 ‘Reflecting NCER Rules in the BSC’
P421 ‘Align BSC with Grid Code for TERRE Market Suspension’
This Modification aligns the BSC with the provisions introduced into the Grid Code under GC0144 ‘Alignment of Market Suspension Rights to the EU Emergency and Restoration Code Article 35.1(b)’.
P420 ‘Retail Code Consolidation Significant Code Review’
P419 ‘Extension of P383 to include non-final Demand’
This Modification seeks to enable BSC Systems to aggregate the Import data of all non-Final Demand sites for exclusion from Balancing Services and Use of System (BSUoS) charges.
P418 ‘Amendments to the P383 legal text for Additional BM Units’
P418 aims to ensure the Legal Text for approved BSC Modification P383 properly reflects the approved solution, business requirements, and is aligned with the BSC baseline introduced by P344, P354 and P388. In particular, it will clarify that the solution being delivered by P383 is applicable to both Supplier Base Balancing Mechanism (BM) Units and Additional BM Units.
P417 ‘Move the Letter of Credit templates and Approved Insurance Product requirements to the BSC Website’
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.
P415 ‘Facilitating access to wholesale markets for flexibility dispatched by Virtual Lead Parties’
P415 seeks to amend the BSC to allow Virtual Lead Parties (VLPs) to participate in the GB wholesale market.
P414 ‘Allowing a Party to Withdraw from the BSC and transfer outstanding liabilities to another Party’
P413 ‘Market-wide Half Hourly Settlement Programme Manager’
P412 ‘Ensuring non-BM Balancing Services providers pay for non-delivery imbalances at a price that reflects the real-time value of energy’
This Modification will introduce imbalance charges for non-Balancing Mechanism (BM) Balancing Services providers, where their delivery does not match instructed volumes. This will mean the GB market more effectively meets the requirements of the Clean Energy Package.
P411 ‘Including new LDSOs in Qualification to mitigate potential risks to Settlement’
P411 aims to improve the effectiveness of the Qualification Performance Assurance Technique (PAT) by requiring new Licensed Distribution System Operators (LDSOs) to undergo Qualification in this role.
P410 ‘Changing imbalance price calculations to comply with the Imbalance Settlement Harmonisation regulations’
P410 sought to introduce changes to the imbalance price calculations to ensure BSC compliance with the European Imbalance Settlement Harmonisation regulations.
P409 ‘Aligning BMRS Reporting Requirements with the Clean Energy Package’
P408 ‘Simplifying the Output Usable Data Process’
P408 is being raised as a consequential BSC Modification to Grid Code Modification GC0130.
The Modification aims to deliver:
- Continued alignment of the Grid Code and BSC processes; and
- Improved market transparency and efficiency through provision of additional Output Usable, Margin and Surplus data in the two to three year ahead timescale.
P407 ‘Project MARI’
P406 ‘Temporary disapplication of Supplier Charge Serials SP08 and SP04 due to COVID-19’
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.
P404 ‘Moving the SAD to a Category 3 BSC Configurable Item’
P403: BSC Arrangements in the event that the TERRE Market is suspended by National Grid ESO
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.
P401: Governance arrangements for BSC Panel Alternates
To clarify the governance arrangements for BSC Panel Alternates in respect of their contribution to quoracy and voting at BSC Panel meetings. This will help to address ambiguity within the existing arrangements.
P400: BSC Panel Modification Business via Video/Teleconference
P399 – BSAD Identity Visibility
P399 seeks to include additional information in the Balancing Services Adjustment Data (BSAD) to identify the assets involved in bilateral trades.
P398 ‘Increasing access to BSC Data’
P398 seeks to increase accessibility to data held by Elexon and BSC Agents. It will better align the BSC with the United Kingdom’s Industrial Strategy.
P397 Assessing the costs and benefits of adjusting Parties’ Imbalances following a demand disconnection
P397 seeks to introduce a mechanism through which the Balancing and Settlement Code Company (BSCCo) determines whether certain Parties should carry out the Settlement Adjustment Processes following a DCE.
P396 ‘Revised treatment of BSC Charges for Lead Parties of Interconnector BM Units’
P395 ‘Aligning BSC Reporting with EMR Regulations – an enduring solution’
P394 ‘Removal of Unused BSC Provisions’
P393 ‘Disapplication of Supplier Charge SP01’
P392 Amending BSC Change Process for EBGL Article 18
This Modification will ensure the process and responsibilities for amending BSC provisions constituting EBGL Article 18 terms and conditions reflect delegations made by NGESO in favor of the BSCCo and BSC Panel, to ensure a unified market change process.