This Data Catalogue sets out the functional reporting requirements for the Balancing Mechanism Reporting Service (BMRS)

The Central Volume Allocation Agent (CVA) Data Catalogue sets out the communication interfaces between CVA BSC Agents or the NETSO (National Electricity Transmission System Operator) and BSC Parties and Party Agents. This main document sets out the general principles common to all the files. Annexes A-C give more detailed information, including links to where data files and data items are further defined in the Interface Definition and Design (IDD) documents.

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This Annex gives an index of the BSC data files covered by the Central Volume Allocation (CVA) Data Catalogue - including file references, sender/recipient details and links to where they're defined further.

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This Annex gives an index of the BSC data items covered by the Central Volume Allocation (CVA) Data Catalogue - including the item references and links to where they're defined further.

This Annex defines the structure and content of Electronic Dispatch Logging (EDL). EDL is the mechanism through which  the NETSO (National Electricity Transmission System Operator) sends balancing services and ancillary services instructions to BSC Parties, and through which BSC Parties also declare availability and dynamic parameters to the NETSO.

• CRD A contains details relating to the sending and receiving of Communications between Parties, Party Agents, Market Index Data Providers and the following BSC Agents: CRA, CDCA, ECVAA, SAA, FAA and TAA:

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CRD B contains details relating to the sending and receiving of Communications between Parties, Party Agents, Market Index Data Providers and the BMRA.

This specification provides a detailed explanation of HHDA instruction processing. Associated with the specification are: Metering System identifiers are associated with a Distribution Business such that it appears to the system that Metering Systems can never change Distribution Businesses; the appointment of PRS Agents is to a Distribution Business and not to a GSP Group; the subject of a refresh of data from a PRS Agent is a Distribution Business; and that instruction file sequence numbers are unique and sequential between source and target.

This describes the requirements for validation and processing of Notification of BM Unit Allocation (D0297) data flows sent from Suppliers to HHDA

This specification provides a detailed explanation of NHH instruction processing. It is a technical document which is aimed at developers. It outlines certain critical validation that is directly relevant to instruction processing. It does not specify all required validation. This is contained in the NHHDA User Requirements Specification.

This catalogue covers both Central Volume Allocation (CVA) and Supplier Volume Allocation (SVA), and sets out the data items to be contained in each of the reports mentioned in BSC Section V. However, it doesn't duplicate information contained in the CVA or SVA Data Catalogues or in the Interface Definition and Design (IDD) documents.

This document provides a single reference to all data items used by Supplier Volume Allocation under the BSC. These are consistent with the Technical Specifications of Elexon-owned applications and with BSC Procedures.

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This describes the requirements that each Entry Process Participant must meet to demonstrate that they are compliant with the SVA Trading Arrangements; either as part of initial Entry Processes or following a major change to the Trading Arrangements such as a Modification Proposal.

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Business Definition Documents

BMRS Data Catalogue

CVA Data Catalogue

CVA Data Catalogue: Annex A: Data File Specification

CVA Data Catalogue: Annex B: Data Dictionary

CVA Data Catalogue: Annex C: NETSO EDL Specification

Communication Requirements Document A

Communication Requirements Document B

Half Hourly Instruction Processing Specification

Multiple BM Unit Instruction Processing Specification

NHH Instruction Processing Specification

Reporting Catalogue

SVA Data Catalogue Volume 1

SVA Data Catalogue Volume 2

TA Change Compliance

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