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BSC Modifications 

Our decision letters for proposed changes to this code are contained in the table below.



DateTitle (Click for more document information)
01/05/2012Balancing and Settlement Code (BSC) P278: Treatment of Transmission Losses for Interconnector Users
31/10/2011Balancing and Settlement Code (BSC) P270 - The Application of Line Loss Factors to Grid Supply Points (GSPs) that are not Transmission-interconnected
13/10/2011Balancing and Settlement Code (BSC) P271: National Electricity Transmission System Operator (NETSO) Consultation in relation to any potential changes to the BSC which takes place in forums other then the BSC Panel
28/09/2011Balancing and Settlement code (BSC) P229 Introduction of a seasonal Zonal Transmission Losses scheme
19/09/2011Balancing and Settlement Code (BSC) P268: Clarify the Production/Consumption (P/C) Status process for exempt Balancing Mechanism (BM) units
20/07/2011Balancing and Settlement Code (BSC) P264: Two-thirds majority Panel recommendation on licence originated Modifications
13/04/2011Balancing and Settlement Code (BSC) P266 Improving the allocation of Reactive Power flows between Import and Export Metering Systems
11/03/2011Balancing and Settlement Code (BSC) Seasonal zonal transmission losses proposals (P229) - Publication of consultants reports
10/12/2010Balancing and Settlement Code (BSC) P262 Code Governance Review: Significant code reviews, Self-Governance and Code Administration code of Practice
24/11/2010Balancing and Settlement Code (BSC) P263 Code Governance Review: Send Back Process and Environmental Assessment
23/11/2010Balancing and Settlement Code (BSC) P260 Extension to data provided to the Transmission Company in the Transmission Use of System (TUoS) Report
19/11/2010Balancing and Settlement Code (BSC) P253 and P265 Modifications to improve the accuracy of the Credit calculations
04/11/2010Balancing and Settlement Code (BSC): Provision of Applicable Balancing Services Volumes for Interconnectors (P259)
25/10/2010Paper on 'Panel Recommendations on Modification Proposals Arising from Licence Conditions'
20/09/2010Balancing and Settlement Code (BSC): Improving efficiency and clarity of the Trading Disputes Process (P256); Removal of the concept of Trading Queries (P257)& Party Agent inclusion in the Trading Disputes process (P258)
02/08/2010P261 Correcting an omission in the BSC arising from the P216 Alternative Modification Legal Text
15/07/2010P255 Profile administrator: creating flexibility in discharging the service
16/06/2010P251 Revision of the election process for Balancing and Settlement Code (BSC) Panel Industry Members
16/06/2010P252 Removal of Trading Parties' ability to submit two votes at elections of Balancing and Settlement Code (BSC) Panel Industry Members
26/05/2010P249 Revision of banking arrangements under the Balancing and Settlement Code (BSC)
19/05/2010P250 Prevention of "Timing Out" of Authority decisions on Modification Proposals
18/05/2010P254 Remove the Main and SVA Specified Charge Amounts from the BSC (Balancing and Settlement Code) and replace them with a requirement for Elexon to publish the current charge amounts on the BSC Website
14/05/2010P247 Proposer 'ownership' of Modification Proposals
15/03/2010P245 Balancing and Settlement Code: “Changes to the Treatment of Long Term vacant site timescales”
05/02/2010P248 Aligning Balancing Settlement Code (BSC) requirements for further interest calculations with the Funds Administration Agent (FAA) calculation method and P235 principles
28/01/2010P246 Reporting to Licensed Distribution System Operators (LDSOs) of Aggregated Metering Data for Embedded Networks
21/01/2010P243 Publication of Generator Forward Availability by Fuel Type
21/01/2010P241 Relaxation of Requirement to Separately Meter Licensable Generating Units
21/01/2010P242 Treatment of Exemptable Generation Connected to Embedded Offshore Transmission Networks
20/01/2010P240 Switching Plant and Apparatus between BM Units
20/01/2010P244 Provoison of BRtiNed flow data to the Balancing Mechanism Reporting Service (BMRS)
25/11/2009P230 Enabling Interoperability through the use of CoP10 and CoP5 Metering
12/11/2009 P237 Standard BM Unit configuration of Offshore Power Park Modules
12/11/2009P238 Removal of the requirement to Meter Each Boundary Point for Offshore Power Park Modules
21/09/2009P239 Correcting manifest errors and modifying an interface in the P217 legal text
16/09/2009P236 Compensation Claims for Metered Volume Reallocation (MVRN) Parties arising from an Outage
30/06/2009P227 Extension of the Definition of Energy Contract Volume Aggregation Agent (ECVAA) Systems to include the centrally provided communications network
30/06/2009P235 Aligning Balancing Settlement Code (BSC) requirements with the calculation of reconciliation interest performed by the funds Administration Agent
25/06/2009P231 Black Start and Fuel Security Code Procedures under the Balancing and Settlement Code (BSC)
25/06/2009P232 Black Start and Fuel Security Compensation and Single Imbalance Price Derivation
19/05/2009P233 and P234 Housekeeping Modifications to the Balancing and Settlement Code
27/02/2009P226 Improving Large Combustion Plant Directive Information Disclosure
21/01/2009P228 Replace BMRS High Grade Service charge amounts/rates with references to a BSC Website schedule
17/10/2008P223 Profile Administrator Service
17/10/2008P224 Reactive Power Flows Associated with Exemptable Generating Plant
16/10/2008P211: Main Imbalance price based on Ex-post Unconstrained Schedule P217: Revised Tagging Process and Calculation of Cash-out Prices
07/08/2008P225 Housekeeping Modification: Updating References to the Party Service Lines
18/07/2008P222 Provision of EAC and AA data to Distributors
17/07/2008Balancing and Settlement Code (BSC) modification proposals on zonal transmission losses
20/05/2008P218 Facilitating Microgeneration within the BSC
24/04/2008Detailed grounds of resistance re Judicial Review Challenge against the Authority's decision not to take its final decisions concerning mod proposals to the Balancing and Settlement Code
24/04/2008Witness statement of Sarah Harrison to the High Court re judicial review challenge against the Authority's decision not to take its final decisions concerning mod proposals to the Balancing and Settlement Code
24/04/2008P216 Audit of LLF Production
23/04/2008P215 Revised Credit Cover Methodology for Generating BM Units
02/04/2008P219 Consistency between Forecast and Out-turn Demand
02/04/2008P220 Provision of new data items for improving market information
29/02/2008Open letter on BSC modification proposals P211 and P217
29/02/2008P212 Main imbalance price based on market reference price
22/02/2008P221 Amendments to the Balancing and Settlement Code to reflect changes to the Fuel Security Code
24/01/2008P214 Issues relating to funds administration
22/10/2007P213 Facilitating Microgeneration (Optional Single MPAN)
10/07/2007P207 Introduction of a new governance regime to allow a risk based Performance Assurance Framework (PAF) to be utilised and reinforce the effectiveness of the current PAF
29/03/2007P210 Notification of Energy Contract Volumes and Metered Volumes Reallocations
16/03/2007Balancing and Settlement Code (BSC) P209: Housekeeping Modification – Change of Code references from BSCP531 to BSCP537
25/01/2007P206 Publication of BSC Panel Election Results
16/01/2007P208 Housekeeping Modification
23/10/2006P205 Increase in PAR level from 100MWh to 500MWh
20/10/2006P205: Increase in PAR level from 100MWh to 500MWh.
07/09/2006Balancing and Settlement Code (BSC) Modification Proposal P201 Energy Imbalance Tolerance Band and P202 Energy Imbalance Incentive Band - Decision
10/08/2006P197: SVA Qualification Processes Review.
03/08/2006P199: Quantification of Demand Control in the BSC as instructed under OC.6 (c), (d) and (e) of the Grid Code.
06/07/2006P205: Decision on urgency.
19/06/2006P196: Treatment of long term vacant sites in settlement
31/03/2006Decision to approve the Market Index Definition Statement (MIDS)
23/03/2006P194: Revised derivation of the main energy imbalance price.
16/12/2005P193: Improved arrangements for Modification Proposals raised by the BSC Panel.
07/12/2005P191: Revised definition of Balancing Mechanism Unit to include Power Park Module.
25/11/2005P195: Neutrality for CCGT BMUs switching between gas and distillate.
21/11/2005P182: Review and redefinition of the Non Half Hourly Settlement performance measures.
14/11/2005P190: Removal of the obligation on the CDCA to provide a witnessing and sealing service in respect of all Metering Equipment associated with CVA Metering Systems.
20/09/2005P192: Change of name of the Transmission Company.
09/09/2005P189: Clarification to fulfil the intent of P174.
08/09/2005P186: Rationalising the criteria for the submission and redeclaration of Demand and Generation Capacities.
07/09/2005P188: Revision to Credit Default provisions.
26/07/2005P187: Introducing the ability for a BSC Party to request urgent status and for it to be considered by the Authority.
24/06/2005P175: Development of provisions relating to certain bid offer acceptances issued pursuant to the Grid Code.
24/06/2005P173: Revised settlement arrangements for emergency instructions.
15/06/2005Standard Licence Condition C3: Balancing and Settlement Code (BSC)
10/06/2005P177: Removal of Intertrip provisions from the BSC.
26/05/2005P184: Clarification of BSC Section W in relation to the application of the query deadline to trading queries/disputes.
26/05/2005P185: Redrafting of BSC Sections U and W in relation to clauses pertaining to the processing and rectification of trading queries/disputes.
26/05/2005P183: Additional Mechanisms for obtaining a valid change of supplier read.
10/05/2005P176: Clarification of requirements for estimation/deeming of meter readings/advances in certain circumstances.
10/05/2005P157: Replacement of current supplier charges rules.
29/04/2005P171: Retrospective removal of emergency instructions taken for system reasons from imbalance price.
29/04/2005P172: Removal of Emergency instructions taken for system reasons from imbalance price.
22/04/2005P178: Reduction in the BSC withdrawal timescale for parties who have settled the vast majority of their trading debts.
19/04/2005P174: Provision for Users of an Interconnector with a single Boundary Point connection to form a Trading Unit amongst themselves and with other BM Units at the same site.
31/03/2005P180: Revision to BSC Modification Implementation Dates, where an Authority determination is referred to appeal or judicial review.
09/02/2005P179: Housekeeping Modification.
04/10/2004Letter to new BSC Participants.