Balancing and Settlement Code. BSC Procedure. BSCP128 - Appendix 7. SVA Format data file (D0265) Version 4.0. Effective Date: 29 June 2017

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1 Balancing and Settlement Code BSC Procedure BSCP128 - Appendix 7 SVA Format data file (D0265) Version 4.0 Effective Date: 29 June 2017 Balancing and Settlement Code Page 1 of 8 29 June 2017

2 BSCP128 - Appendix 7 Relating to SVA Format data file (D0265) and SVA Short Format File 1. Reference is made to the Balancing and Settlement Code (the Code) for the Electricity Industry in Great Britain and, in particular, to the definition of "BSC Procedure". 2. This is BSCP128 Appendix 7, Version 4.0 relating to the SVA Format data file (D0265) and SVA Short Format File. 3. This BSC Procedure Appendix is effective from 29 June This BSC Procedure has been approved by the Panel. Intellectual Property Rights, Copyright and Disclaimer The copyright and other intellectual property rights in this document are vested in ELEXON or appear with the consent of the copyright owner. These materials are made available for you for the purposes of your participation in the electricity industry. If you have an interest in the electricity industry, you may view, download, copy, distribute, modify, transmit, publish, sell or create derivative works (in whatever format) from this document or in other cases use for personal academic or other noncommercial purposes. All copyright and other proprietary notices contained in the document must be retained on any copy you make. All other rights of the copyright owner not expressly dealt with above are reserved. No representation, warranty or guarantee is made that the information in this document is accurate or complete. While care is taken in the collection and provision of this information, ELEXON Limited shall not be liable for any errors, omissions, misstatements or mistakes in any information or damages resulting from the use of this information or action taken in reliance on it. Balancing and Settlement Code Page 2 of 8 29 June 2017

3 AMENDMENT RECORD Version Date Description of Changes CRs Included Mods Panel Ref /04/09 First Published P / June 2014 June 2014 Release CP1407 v2.0 ISG157/01 SVG160/05 P225/ Nov 2016 November 2016 Release CP1461 ISG128/08 SVG186/ June 2017 June 2017 Release CP1476 ISG190/02 SVG192/03 Balancing and Settlement Code Page 3 of 8 29 June 2017

4 CONTENTS 1. D0265 DATA FILE SUBMISSION D0265 DATA FILE SVA SHORT FORMAT FILE... 8 Balancing and Settlement Code Page 4 of 8 29 June 2017

5 1. D0265 DATA FILE SUBMISSION 1.1 Annual Data File Submission The annual SVA submission of a D0265 file must contain every 1 Line Loss Factor for every Settlement Period of every Settlement Date for the BSC Year Mid-year Data File Submission of new and revised LLFs 3 A mid-year submission of a SVA D0265 can contain both new or revised Line Loss Factors only. A full set of data as per 1.1 is not required and can be submitted as a partial file. File submissions for mid-year can be in the format of either a full submission or partial submission. A mid-year SVA D0265 submission that contains new or revised Line Loss Factors will be automatically added to the LDSOs full portfolio of LLFs by ELEXON. 1.3 New Entrants New entrants are required to submit a full D0265 containing all Line Loss Factors associated with that distributor at first instance. 1 All Line Loss Factors (LLFs) that will be active for the forthcoming BSC year. 2 New or Revised Line Loss Factor Classes must follow the Market Domain Data time frames in BSCP509 Change to Market Domain Data and new Calculated Self-Assessment Document (CSAD) BSCP128 is to be submitted on every occasion. 3 Mid year submission of revised LLFs are subject to the criteria defined in the LLF Methodology Principles 14, 15 and 16. Balancing and Settlement Code Page 5 of 8 29 June 2017

6 2. D0265 DATA FILE Flow Name: Line Loss Factor Data File Flow Description: Details of line loss factors published by line loss factor class. Flow Ownership: BSC From To Version Distributor HHDA 3.1 Distributor Supplier 3.2 Distributor SVAA 6.0 Data Items: Reference J0189 J0156 J0147 J0073 J0074 Item Name Distributor Id Line Loss Factor Line Loss Factor Class Id Settlement Date Settlement Period Id Flow Structure: Group Group Description Range Condition L1 L2 L3 L4 L5 L6 L7 L8 Item Name DIS Distributor 1 G LLF Line Loss Factor Class 0-* G SDT Settlement Date 0-* G SPL Settlement Period Line Loss Factor 0-* G 1 Distributor Id 1 Line Loss Factor Class Id 1 Settlement Date 1 Settlement Period Id 1 Line Loss Factor Balancing and Settlement Code Page 6 of 8 29 June 2017

7 Version History: Catalogue release change takes effect CP No. Brief description of the change and its reason Version Flow occurrence from Distributor to Supplier added. Version Flow occurrence from Distributor to IARA added. Version Flow occurrence changed from 'PRS Agent to ISRA' to 'Distributor to ISRA'. Version Flow ownership changed from 'Pool' to 'BSC' Version Flow occurrence from Distributor to SVAA added Version Notes added Version Instance of Distributor to IARA removed Version Instance of Distributor to ISRA removed Balancing and Settlement Code Page 7 of 8 29 June 2017

8 3. SVA SHORT FORMAT FILE The SVA Short Format File is a file that Embedded LDSOs that Mirror a Hosts LDSO s LLFs can submit to BSCCo detailing how its LLFCs map to its Host LDSO s LLFCs. It can be submitted in the place of a D0265 file, and BSCCO will use it to create and submit a D0265 on behalf of the Embedded LDSO. It is only available to Embedded LDSOs that Mirror the Host LDSO s LLFCs. The SVA Short Format File is submitted as a Microsoft Excel (.XLS) file 4. The file should contain a single tab, with a column for the Host LDSO s MPID, the Host LDSO s LLFC, the Embedded LDSOs MPID and the Embedded LLFC to be mapped, as well as effective from and to dates that the mappings cover. LDSOs can choose to create an individual file for each SVA MSID or combine multiple MSIDs into one file. The collection of data records is detailed in the table below. Item Name / column header Description Host_MPID This is the Host LDSO identifier, as specified by J0189 Host_LLFC This is the Host LDSO s LLFC that the Embedded LDSO is mapping to, as specified by J0147 Embedded_MPID This is the Embedded LDSO identifier, as specified by J0189 Embedded_LLFC This is the Embedded LDSOs LLFC, as specified by J0147 Effective_from_date 01/04/YYYY for annual submissions Effective_to_date If the LLFC is enduring, the effective to date should be the end of the BSC Year (31/03/YYYY) Example of an SVA Short Format File 4 For any Parties that do not have Microsoft Excel, they can provide an equivalent CSV file in agreement with BSCCo. Balancing and Settlement Code Page 8 of 8 29 June 2017