Part 2 of the NETA IDD document contains the definition and design of the system interfaces between the following BSC Agents: the Balancing Mechanism Reporting Agent (BMRA), Central Data Collection Agent (CDCA), Central Registration Agent (CRA), Energy Contract Volume Aggregation Agent (ECVAA) and Settlement Administration Agent (SAA). See Part 1 for details of their system interfaces with BSC Parties and Party Agents.

55.0

<div data-id="1-1.1-1.1.1">1.1.1&nbsp;&nbsp;Summary</div>

<div data-id="1-1.1">1.1&nbsp;&nbsp;Purpose</div>

<div data-id="1-1.2-1.2.1">1.2.1&nbsp;&nbsp;The Scope of this Document</div>

<div data-id="1-1.2">1.2&nbsp;&nbsp;Scope</div>

<div data-id="1-1.3">1.3&nbsp;&nbsp;Summary</div>

<div data-id="1-1.4">1.4&nbsp;&nbsp;Amendment History</div>

<div data-id="1-1.5">1.5&nbsp;&nbsp;References</div>

<div data-id="1-1.6">1.6&nbsp;&nbsp;Abbreviations</div>

<div data-id="2-2.1-2.1.1">2.1.1&nbsp;&nbsp;Manual</div>

<div data-id="2-2.1-2.1.2">2.1.2&nbsp;&nbsp;Electronic Data File Transfer</div>

<div data-id="2-2.1-2.1.3">2.1.3&nbsp;&nbsp;Internal Interfaces</div>

<div data-id="2-2.1-2.1.4">2.1.4&nbsp;&nbsp;Repeating Structure</div>

<div data-id="2-2.1-2.1.5">2.1.5&nbsp;&nbsp;File names</div>

<div data-id="2-2.1-2.1.6">2.1.6&nbsp;&nbsp;Unstructured File Format</div>

<div data-id="2-2.1-2.1.7">2.1.7&nbsp;&nbsp;Acknowledgement Messages and Sequence Numbers</div>

<div data-id="2-2.1-2.1.9">2.1.9&nbsp;&nbsp;Valid Sets</div>

<div data-id="2-2.1">2.1&nbsp;&nbsp;Interface Mechanisms</div>

<div data-id="2">2&nbsp;&nbsp;Common Interface Conventions</div>

<html><head></head><body><div data-id="3-3.1-3.1.1">3.1.1&nbsp;&nbsp;<u class="defined-term">BMRA</u> Interfaces</div></body></html>

<html><head></head><body><div data-id="3-3.1-3.1.2">3.1.2&nbsp;&nbsp;<u class="defined-term">CDCA</u> Interfaces</div></body></html>

<div data-id="3-3.1-3.1.3">3.1.3&nbsp;&nbsp;CRA Interfaces</div>

<html><head></head><body><div data-id="3-3.1-3.1.4">3.1.4&nbsp;&nbsp;<u class="defined-term">ECVAA</u> Interfaces</div></body></html>

<div data-id="3-3.1-3.1.5">3.1.5&nbsp;&nbsp;SAA Interfaces</div>

<html><head></head><body><div data-id="3-3.1">3.1&nbsp;&nbsp;Interfaces by <u class="defined-term">BSC Agent</u></div></body></html>

<html><head></head><body><div data-id="3-3.2-3.2.1">3.2.1&nbsp;&nbsp;<u class="defined-term">BSCCo</u> Ltd Interfaces</div></body></html>

<div data-id="3-3.2-3.2.2">3.2.2&nbsp;&nbsp;FAA Interfaces</div>

<html><head></head><body><div data-id="3-3.2-3.2.3">3.2.3&nbsp;&nbsp;<u class="defined-term">NETSO</u> Interfaces</div></body></html>

<html><head></head><body><div data-id="3-3.2-3.2.4">3.2.4&nbsp;&nbsp;<u class="defined-term">Stage</u> 2 Interfaces</div></body></html>

<div data-id="3-3.2-3.2.5">3.2.5&nbsp;&nbsp;Transfer Coordinator Interfaces</div>

<div data-id="3-3.2-3.2.6">3.2.6&nbsp;&nbsp;Internal Interfaces</div>

<html><head></head><body><div data-id="3-3.2-3.2.7">3.2.7&nbsp;&nbsp;<u class="defined-term">EMR <u class="defined-term">Settlement</u> Services Provider</u> Interfaces</div></body></html>

<html><head></head><body><div data-id="3-3.2">3.2&nbsp;&nbsp;Interfaces by Corresponding <u class="defined-term">Party</u></div></body></html>

<div data-id="3">3&nbsp;&nbsp;External Interface Summary</div>

<div data-id="4-4.1">4.1&nbsp;&nbsp;CRA-I004: (input) BSC Service Agent Details</div>

<div data-id="4-4.2">4.2&nbsp;&nbsp;CRA-I013: (output) Issue Authentication Report</div>

<html><head></head><body><div data-id="4-4.3">4.3&nbsp;&nbsp;CRA-I015: (output) <u class="defined-term"><u class="defined-term">BM Unit</u></u>, <u class="defined-term">Interconnector</u> and <u class="defined-term">GSP Group</u> Data</div></body></html>

<div data-id="4-4.4">4.4&nbsp;&nbsp;CRA-I020: (output) Operations Registration Report</div>

<div data-id="4-4.5">4.5&nbsp;&nbsp;CRA-I028: (output) NGC Standing Data Report</div>

<html><head></head><body><div data-id="4-4.6">4.6&nbsp;&nbsp;<u class="defined-term">ECVAA</u>-I016: (output) <u class="defined-term">ECVAA</u> Data Exception Report</div></body></html>

<html><head></head><body><div data-id="4-4.7">4.7&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">ECVAA</u></u>-I025: (output) <u class="defined-term"><u class="defined-term">Credit Cover</u></u> Minimum Eligible Amount Report</div></body></html>

<div data-id="4-4.8">4.8&nbsp;&nbsp;SAA-I013: (output) Credit/Debit Reports</div>

<div data-id="4">4&nbsp;&nbsp;Interfaces From and To Multiple Parties</div>

<html><head></head><body><div data-id="5-5.1">5.1&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I002: (input) Balancing Mechanism Data</div></body></html>

<html><head></head><body><div data-id="5-5.2">5.2&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I003: (input) <u class="defined-term">System</u> Related Data</div></body></html>

<html><head></head><body><div data-id="5-5.3">5.3&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I010: (output, common) Data Exception Reports</div></body></html>

<html><head></head><body><div data-id="5-5.4">5.4&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I014: (input) Price Adjustment Data</div></body></html>

<html><head></head><body><div data-id="5-5.5">5.5&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I020: (input) <u class="defined-term"><u class="defined-term">BM Unit</u> Fuel Type List</u></div></body></html>

<html><head></head><body><div data-id="5-5.6">5.6&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I021: (input) Temperature Reference Data</div></body></html>

<html><head></head><body><div data-id="5-5.7">5.7&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I022: (input) Daily Energy Volume Reference Data</div></body></html>

<html><head></head><body><div data-id="5-5.8">5.8&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I023: (input) Wind Generation Registered Capacities</div></body></html>

<html><head></head><body><div data-id="5-5.9">5.9&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I034: (input) <u class="defined-term">Trading Unit</u> Data</div></body></html>

<html><head></head><body><div data-id="5-5.10">5.10&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I012: (output, part 1) Report Raw <u class="defined-term">Meter</u> Data</div></body></html>

<html><head></head><body><div data-id="5-5.11">5.11&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I029: (output, part 1) Aggregated <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">GSP Group</u> Take</u></u></u> Volumes</div></body></html>

<html><head></head><body><div data-id="5-5.12">5.12&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I042: (output, part 1) <u class="defined-term">BM Unit</u> Aggregation Report</div></body></html>

<html><head></head><body><div data-id="5-5.13">5.13&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I049: (output) Total Demand per GSP</div></body></html>

<html><head></head><body><div data-id="5-5.14">5.14&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I051: (output) Report <u class="defined-term"><u class="defined-term">Meter</u> Technical Details</u></div></body></html>

<html><head></head><body><div data-id="5-5.15">5.15&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I067: (input) Disconnected CVA <u class="defined-term">BM Unit</u>s</div></body></html>

<html><head></head><body><div data-id="5-5.16">5.16&nbsp;&nbsp;CRA-I007: (input/output) <u class="defined-term">Boundary Point</u> and <u class="defined-term">System</u> Connection Point Data</div></body></html>

<html><head></head><body><div data-id="5-5.17">5.17&nbsp;&nbsp;CRA-I008: (input) <u class="defined-term">Interconnector</u> Registration Details</div></body></html>

<div data-id="5-5.18">5.18&nbsp;&nbsp;CRA-I013: (output, common) Issue Authentication Report</div>

<div data-id="5-5.19">5.19&nbsp;&nbsp;CRA-I014: (output, part 1) Registration Report</div>

<div data-id="5-5.20">5.20&nbsp;&nbsp;CRA-I020: (output) Operations Registration Report</div>

<div data-id="5-5.21">5.21&nbsp;&nbsp;CRA-I028: (output) NGC Standing Data Report</div>

<div data-id="5-5.22">5.22&nbsp;&nbsp;SAA-I012 (input, part 1) Dispute Notification</div>

<html><head></head><body><div data-id="5-5.23">5.23&nbsp;&nbsp;SAA-I014 (output) <u class="defined-term">Settlement</u> Report</div></body></html>

<div data-id="5-5.24">5.24&nbsp;&nbsp;SAA-I017: (output, common) SAA Data Exception Report</div>

<div data-id="5-5.25">5.25&nbsp;&nbsp;SAA-I018 (output, part 1) Dispute Report</div>

<div data-id="5-5.26">5.26&nbsp;&nbsp;SAA-I026: (input) Price Adjustment Data</div>

<div data-id="5-5.27">5.27&nbsp;&nbsp;SAA-I033: (input) Receive Request for Data Change</div>

<html><head></head><body><div data-id="5-5.28">5.28&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I024: (input) Large Combustion <u class="defined-term"><u class="defined-term">Plant</u></u> <u class="defined-term"><u class="defined-term">Directive</u></u> Spreadsheet<sup><a href="#footnote-14" id="footnote-ref-14">[13]</a></sup></div></body></html>

<html><head></head><body><div data-id="5-5.29">5.29&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I025: (input) SO-SO Prices</div></body></html>

<html><head></head><body><div data-id="5-5.30">5.30&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I026: (input) SO-SO Standing Data</div></body></html>

<html><head></head><body><div data-id="5-5.31">5.31&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I028: (input) Receive <u class="defined-term">REMIT</u> Data</div></body></html>

<html><head></head><body><div data-id="5-5.32">5.32&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I029: (input) Receive <u class="defined-term"><u class="defined-term">Transparency Regulation</u> Data</u></div></body></html>

<html><head></head><body><div data-id="5-5.33">5.33&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I036: (input) Receive <u class="defined-term">Replacement Reserve</u> Data</div></body></html>

<html><head></head><body><div data-id="5-5.34">5.34&nbsp;&nbsp;P0292: (input) ABS <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">MSID</u> Pair</u> Delivered Volume</u></u> Notification</div></body></html>

<html><head></head><body><div data-id="5-5.35">5.35&nbsp;&nbsp;P0293: (output) Rejection of ABS <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">MSID</u> Pair</u> Delivered Volume</u></u></div></body></html>

<html><head></head><body><div data-id="5-5.36">5.36&nbsp;&nbsp;P0294: (output) Confirmation of ABS <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">MSID</u> Pair</u> Delivered Volume</u></u></div></body></html>

<html><head></head><body><div data-id="5-5.37">5.37&nbsp;&nbsp;P0295: (output) ABS <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">MSID</u> Pair</u> Delivered Volume</u></u> Exception Report</div></body></html>

<html><head></head><body><div data-id="5-5.38">5.38&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I038: (input) Receive Regional Demand Forecast and Restoration Data</div></body></html>

<html><head></head><body><div data-id="5">5&nbsp;&nbsp;Interfaces From and To the <u class="defined-term">NETSO</u></div></body></html>

<div data-id="6-6.1">6.1&nbsp;&nbsp;CRA-I004: (input, common) BSC Service Agent Details</div>

<div data-id="6-6.2">6.2&nbsp;&nbsp;CRA-I013: (output, common) Issue Authentication Report</div>

<html><head></head><body><div data-id="6-6.3">6.3&nbsp;&nbsp;CRA-I015: (output, common) <u class="defined-term"><u class="defined-term">BM Unit</u></u> and <u class="defined-term">Energy Account</u> Registration Data</div></body></html>

<html><head></head><body><div data-id="6-6.4">6.4&nbsp;&nbsp;<u class="defined-term">ECVAA</u>-I006: (input) Credit Limit Data</div></body></html>

<html><head></head><body><div data-id="6-6.5">6.5&nbsp;&nbsp;<u class="defined-term">ECVAA</u>-I016: (output, common) <u class="defined-term">ECVAA</u> Data Exception Report</div></body></html>

<html><head></head><body><div data-id="6-6.6">6.6&nbsp;&nbsp;SAA-I011: (input) <u class="defined-term">Payment Calendar</u> Data</div></body></html>

<div data-id="6-6.7">6.7&nbsp;&nbsp;SAA-I013: (output, common) Credit/Debit Reports</div>

<div data-id="6">6&nbsp;&nbsp;Interfaces From and To FAA</div>

<html><head></head><body><div data-id="7-7.1">7.1&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I010: (output, common) Data Exception Reports</div></body></html>

<html><head></head><body><div data-id="7-7.2">7.2&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I011: (output) Performance Reports</div></body></html>

<html><head></head><body><div data-id="7-7.3">7.3&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I012: (input) <u class="defined-term">System</u> Parameters</div></body></html>

<html><head></head><body><div data-id="7-7.4">7.4&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I013: (output) <u class="defined-term">BMRA</u> BSC Section D Charging Data</div></body></html>

<html><head></head><body><div data-id="7-7.5">7.5&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I014: (output, part 1) Estimated Data Report</div></body></html>

<html><head></head><body><div data-id="7-7.6">7.6&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I016: (input) Receive <u class="defined-term"><u class="defined-term">Market Index Data</u> Provider</u> Thresholds</div></body></html>

<html><head></head><body><div data-id="7-7.7">7.7&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I017: (output) Report <u class="defined-term"><u class="defined-term">Market Index Data</u> Provider</u> Thresholds</div></body></html>

<html><head></head><body><div data-id="7-7.8">7.8&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I018: (output, part 1) MAR Reconciliation Report</div></body></html>

<html><head></head><body><div data-id="7-7.9">7.9&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I019: (output, part 1) MAR Remedial Action Report</div></body></html>

<html><head></head><body><div data-id="7-7.10">7.10&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I022: (input) Distribution <u class="defined-term"><u class="defined-term">Line Loss Factor</u></u>s</div></body></html>

<html><head></head><body><div data-id="7-7.11">7.11&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I023: (output) Missing <u class="defined-term"><u class="defined-term">Line Loss Factor</u></u>s</div></body></html>

<html><head></head><body><div data-id="7-7.12">7.12&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I032: (output) Data Collection and Aggregation Performance Report</div></body></html>

<html><head></head><body><div data-id="7-7.13">7.13&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I047: (output, part 1) Correspondence Receipt Acknowledgement</div></body></html>

<html><head></head><body><div data-id="7-7.14">7.14&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I061 (input) Receive <u class="defined-term">System</u> Parameters</div></body></html>

<html><head></head><body><div data-id="7-7.15">7.15&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I062: (input) Receive <u class="defined-term"><u class="defined-term">Sample <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">Settlement</u> Period</u></u></u></u></u>s<sup><a href="#footnote-15" id="footnote-ref-15">[14]</a></sup></div></body></html>

<html><head></head><body><div data-id="7-7.16">7.16&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I063: (output) <u class="defined-term"><u class="defined-term"><u class="defined-term">Meter</u>ed Volume</u></u> Data for <u class="defined-term">Sample <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">Settlement</u> Period</u></u></u></u>s</div></body></html>

<html><head></head><body><div data-id="7-7.17">7.17&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I064: (output) MOA Proving Tests Report</div></body></html>

<html><head></head><body><div data-id="7-7.18">7.18&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I065: (output) MOA Fault Resolution Report</div></body></html>

<html><head></head><body><div data-id="7-7.19">7.19&nbsp;&nbsp;CRA-I001: (input &amp; output, part 1) BSC <u class="defined-term"><u class="defined-term">Party</u> Registration Data</u></div></body></html>

<html><head></head><body><div data-id="7-7.20">7.20&nbsp;&nbsp;CRA-I003: (input, part 1) BSC <u class="defined-term"><u class="defined-term">Party</u> Agent</u> Registration Data</div></body></html>

<div data-id="7-7.21">7.21&nbsp;&nbsp;CRA-I004: (input, common) BSC Service Agent Details</div>

<div data-id="7-7.22">7.22&nbsp;&nbsp;CRA-I009: (input) Receive Manual Credit Qualifying Flag (Redundant)</div>

<html><head></head><body><div data-id="7-7.23">7.23&nbsp;&nbsp;CRA-I011: (input) <u class="defined-term">Credit Assessment Load Factor</u>s</div></body></html>

<div data-id="7-7.24">7.24&nbsp;&nbsp;CRA-I020: (output, common) Operations Registration Report</div>

<div data-id="7-7.25">7.25&nbsp;&nbsp;CRA-I028: (output) NGC Standing Data Report</div>

<html><head></head><body><div data-id="7-7.26">7.26&nbsp;&nbsp;CRA-I029: (input) <u class="defined-term">Transmission Loss Factor</u>s</div></body></html>

<div data-id="7-7.27">7.27&nbsp;&nbsp;CRA-I032: (output) CRA Performance Reports</div>

<div data-id="7-7.28">7.28&nbsp;&nbsp;CRA-I034: (input) Flexible Reporting Request</div>

<div data-id="7-7.29">7.29&nbsp;&nbsp;CRA-I035: (output) CRA BSC Section D Charging Data</div>

<html><head></head><body><div data-id="7-7.30">7.30&nbsp;&nbsp;CRA-I042: (input) Receive <u class="defined-term"><u class="defined-term">Market Index Data</u> Provider</u> Registration Data</div></body></html>

<html><head></head><body><div data-id="7-7.31">7.31&nbsp;&nbsp;CRA-I043: (input) Receive Exempt <u class="defined-term">Export</u> Registration Data</div></body></html>

<div data-id="7-7.32">7.32&nbsp;&nbsp;CRA-I044: (input) Withdrawals Checklist Request</div>

<div data-id="7-7.33">7.33&nbsp;&nbsp;CRA-I047: (output) Withdrawals Checklist</div>

<div data-id="7-7.34">7.34&nbsp;&nbsp;CRA-I050: GC or DC Breach Estimation Challenge Decision</div>

<html><head></head><body><div data-id="7-7.35">7.35&nbsp;&nbsp;<u class="defined-term">ECVAA</u>-I017: (output) <u class="defined-term">ECVAA</u> Performance Report</div></body></html>

<html><head></head><body><div data-id="7-7.36">7.36&nbsp;&nbsp;<u class="defined-term">ECVAA</u>-I021: (output) Credit Limit Warning</div></body></html>

<html><head></head><body><div data-id="7-7.37">7.37&nbsp;&nbsp;<u class="defined-term">ECVAA</u>-I023: (output) <u class="defined-term">ECVAA</u> BSC Section D Charging Data</div></body></html>

<html><head></head><body><div data-id="7-7.38">7.38&nbsp;&nbsp;<u class="defined-term">ECVAA</u>-I026: (output) Minimum Eligible Amount Request</div></body></html>

<html><head></head><body><div data-id="7-7.39">7.39&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">ECVAA</u></u>-I027: (input) Notification of BSC Parties in Section H <u class="defined-term">Default</u></div></body></html>

<html><head></head><body><div data-id="7-7.40">7.40&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">ECVAA</u></u>-I032: (input) <u class="defined-term">Credit Assessment Price</u></div></body></html>

<html><head></head><body><div data-id="7-7.41">7.41&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">ECVAA</u></u>-I040: (output) Issue Notification <u class="defined-term">System</u> Status Report</div></body></html>

<html><head></head><body><div data-id="7-7.42">7.42&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">ECVAA</u></u>-I041: Receive <u class="defined-term"><u class="defined-term">Party</u></u> <u class="defined-term">Credit <u class="defined-term">Default</u></u> Authorisation Details</div></body></html>

<html><head></head><body><div data-id="7-7.43">7.43&nbsp;&nbsp;SAA-I010: (input) <u class="defined-term">BSCCo</u> Ltd Cost Data (Redundant)</div></body></html>

<div data-id="7-7.44">7.44&nbsp;&nbsp;SAA-I012: (input, part 1) Dispute Notification</div>

<html><head></head><body><div data-id="7-7.45">7.45&nbsp;&nbsp;SAA-I014 (output) <u class="defined-term">Settlement</u> Reports</div></body></html>

<html><head></head><body><div data-id="7-7.46">7.46&nbsp;&nbsp;SAA-I016: (output, part 1) <u class="defined-term"><u class="defined-term">Settlement</u> Calendar</u></div></body></html>

<div data-id="7-7.47">7.47&nbsp;&nbsp;SAA-I018: (output, part 1) Dispute Report</div>

<html><head></head><body><div data-id="7-7.48">7.48&nbsp;&nbsp;SAA-I019: (output) BSC <u class="defined-term">Party</u> Performance Reports (Redundant)</div></body></html>

<div data-id="7-7.49">7.49&nbsp;&nbsp;SAA-I020: (output) SAA Performance Reports</div>

<html><head></head><body><div data-id="7-7.50">7.50&nbsp;&nbsp;SAA-I023: (input) <u class="defined-term">System</u> Parameters</div></body></html>

<div data-id="7-7.51">7.51&nbsp;&nbsp;SAA-I025: (output) SAA BSC Section D Charging Data</div>

<div data-id="7-7.52">7.52&nbsp;&nbsp;SAA-I027: (output) Report pre-settlement run validation failure</div>

<div data-id="7-7.53">7.53&nbsp;&nbsp;SAA-I028: (input) Receive settlement run decision</div>

<div data-id="7-7.54">7.54&nbsp;&nbsp;SAA-I029: (input) Receive settlement run instructions</div>

<html><head></head><body><div data-id="7-7.55">7.55&nbsp;&nbsp;SAA-I031: (input) Receive <u class="defined-term"><u class="defined-term">Market Index Data</u> Provider</u> Thresholds</div></body></html>

<html><head></head><body><div data-id="7-7.56">7.56&nbsp;&nbsp;SAA-I032: (output) Report <u class="defined-term"><u class="defined-term">Market Index Data</u> Provider</u> Thresholds</div></body></html>

<div data-id="7-7.57">7.57&nbsp;&nbsp;SAA-I034: (output) Report Recommended Data Change</div>

<div data-id="7-7.58">7.58&nbsp;&nbsp;SAA-I035: (input) Receive Instruction for Data Change</div>

<div data-id="7-7.59">7.59&nbsp;&nbsp;SAA-I036: (output) Report Confirmation of Data Change</div>

<html><head></head><body><div data-id="7-7.60">7.60&nbsp;&nbsp;SAA- I038: (input) Receive Excluded <u class="defined-term">Emergency <u class="defined-term">Acceptance</u></u> Pricing Information</div></body></html>

<html><head></head><body><div data-id="7-7.61">7.61&nbsp;&nbsp;SAA-I039: (output) Send Excluded <u class="defined-term">Emergency <u class="defined-term">Acceptance</u></u> Dry Run Results</div></body></html>

<html><head></head><body><div data-id="7-7.62">7.62&nbsp;&nbsp;SAA- I040: (input) Receive Authorisation To Proceed With Full <u class="defined-term"><u class="defined-term">Settlement</u> Run</u></div></body></html>

<html><head></head><body><div data-id="7-7.63">7.63&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">ECVAA</u></u>-I049: (input) Request to remove all ECVNs and MVRNs from <u class="defined-term">ECVAA</u> for a <u class="defined-term"><u class="defined-term">Party</u></u> in Section H <u class="defined-term">Default</u></div></body></html>

<html><head></head><body><div data-id="7-7.64">7.64&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">ECVAA</u></u>-I050: (output) Remove all ECVNs and MVRNs from <u class="defined-term">ECVAA</u> for a <u class="defined-term"><u class="defined-term">Party</u></u> in Section H <u class="defined-term">Default</u> Feedback.</div></body></html>

<html><head></head><body><div data-id="7-7.65">7.65&nbsp;&nbsp;<u class="defined-term">ECVAA</u>-I053: Daily Wholesale Market Activity Report</div></body></html>

<html><head></head><body><div data-id="7-7.66">7.66&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I033: (Input) <u class="defined-term"><u class="defined-term">STOR</u> Availability Window</u></div></body></html>

<html><head></head><body><div data-id="7-7.67">7.67&nbsp;&nbsp;SAA-I046: (Input) <u class="defined-term"><u class="defined-term">STOR</u> Availability Window</u></div></body></html>

<html><head></head><body><div data-id="7">7&nbsp;&nbsp;Interfaces From and To <u class="defined-term">BSCCo</u> Ltd</div></body></html>

<html><head></head><body><div data-id="8-8.1">8.1&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I043: (output) <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">GSP Group</u> Take</u></u></u> to <u class="defined-term">SVAA</u></div></body></html>

<div data-id="8-8.2">8.2&nbsp;&nbsp;CRA-I004: Agent Details</div>

<html><head></head><body><div data-id="8-8.3">8.3&nbsp;&nbsp;SAA-I007: (input) <u class="defined-term"><u class="defined-term"><u class="defined-term">BM Unit</u> Allocated Demand Volume</u></u></div></body></html>

<html><head></head><body><div data-id="8-8.4">8.4&nbsp;&nbsp;SAA-I016: (output, part 1) <u class="defined-term"><u class="defined-term">Settlement</u> Calendar</u></div></body></html>

<div data-id="8-8.5">8.5&nbsp;&nbsp;SAA-I017: (output, common) SAA Data Exception Report</div>

<html><head></head><body><div data-id="8-8.6">8.6&nbsp;&nbsp;CRA-I015: (output) <u class="defined-term">BM Unit</u> Registration Data</div></body></html>

<html><head></head><body><div data-id="8-8.7">8.7&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I032: (output) <u class="defined-term">Demand Control Instruction</u>s to <u class="defined-term">SVAA</u></div></body></html>

<html><head></head><body><div data-id="8-8.8">8.8&nbsp;&nbsp;SAA-I045: (input) <u class="defined-term"><u class="defined-term"><u class="defined-term">BM Unit</u> Allocated <u class="defined-term">Demand Disconnection</u> Volume</u></u></div></body></html>

<html><head></head><body><div data-id="8-8.9">8.9&nbsp;&nbsp;SAA-I050: (input) <u class="defined-term"><u class="defined-term">Secondary <u class="defined-term">BM Unit</u></u> Demand Volume</u>s</div></body></html>

<html><head></head><body><div data-id="8-8.10">8.10&nbsp;&nbsp;SAA-I051: (input) <u class="defined-term"><u class="defined-term"><u class="defined-term">Secondary <u class="defined-term">BM Unit</u></u> <u class="defined-term">Supplier</u> Delivered Volume</u></u>s</div></body></html>

<div data-id="8-8.11">8.11&nbsp;&nbsp;SAA-I052: (output) Daily Activations Report</div>

<html><head></head><body><div data-id="8-8.12">8.12&nbsp;&nbsp;SAA-I054: (input) <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">Supplier</u> <u class="defined-term">BM Unit</u></u> Non BM ABSVD</u></u></div></body></html>

<html><head></head><body><div data-id="8-8.13">8.13&nbsp;&nbsp;SAA-I055: <u class="defined-term"><u class="defined-term">BM Unit</u></u> <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">Settlement</u> Expected Volume</u></u>s</u></div></body></html>

<html><head></head><body><div data-id="8-8.14">8.14&nbsp;&nbsp; SAA-I057: <u class="defined-term"><u class="defined-term">Supplier</u> <u class="defined-term">BM Unit</u></u> Period Non-Chargeable Demand</div></body></html>

<html><head></head><body><div data-id="8-8.15">8.15&nbsp;&nbsp;SAA-I059: <u class="defined-term"><u class="defined-term">Supplier</u> <u class="defined-term">BM Unit</u></u> Period Total Gross Non-<u class="defined-term">Final Demand</u></div></body></html>

<html><head></head><body><div data-id="8-8.16">8.16&nbsp;&nbsp;SAA-I060: <u class="defined-term"><u class="defined-term">BM Unit</u></u> Period <u class="defined-term">Deviation Volume</u></div></body></html>

<html><head></head><body><div data-id="8">8&nbsp;&nbsp;Interfaces From and To <u class="defined-term">Stage</u> 2</div></body></html>

<html><head></head><body><div data-id="9-9.1">9.1&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I001 (input): Registration Data</div></body></html>

<html><head></head><body><div data-id="9-9.2">9.2&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I007 (output) SAA/<u class="defined-term">ECVAA</u> Balancing Mechanism Data</div></body></html>

<html><head></head><body><div data-id="9-9.3">9.3&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">BMRA</u></u>-I010: (output, common) Data Exception ReportsThis interface is defined in Part 1 of the Interface Definition and Design.<u class="defined-term">BMRA</u>-I018: (input) Publish <u class="defined-term">Credit <u class="defined-term">Default</u></u> Report</div></body></html>

<html><head></head><body><div data-id="9-9.4">9.4&nbsp;&nbsp;<u class="defined-term">BMRA</u>-I038: (input) Receive Exempt Supply Volume</div></body></html>

<html><head></head><body><div data-id="9-9.5">9.5&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I002: (input) Registration Data</div></body></html>

<html><head></head><body><div data-id="9-9.6">9.6&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I016: (input) Information from TAA</div></body></html>

<html><head></head><body><div data-id="9-9.7">9.7&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I020: (input) Site Visit Inspection Report</div></body></html>

<html><head></head><body><div data-id="9-9.8">9.8&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I027: (output) Aggregated <u class="defined-term">Interconnector</u> <u class="defined-term">Meter</u> Flow Volumes</div></body></html>

<html><head></head><body><div data-id="9-9.9">9.9&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I028: (output) Aggregated <u class="defined-term">BM Unit</u> <u class="defined-term">Meter</u> Flow Volumes</div></body></html>

<html><head></head><body><div data-id="9-9.10">9.10&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I034: <u class="defined-term"><u class="defined-term">Settlement</u> Calendar</u></div></body></html>

<html><head></head><body><div data-id="9-9.11">9.11&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I035: (input) Site Visit Report on Aggregation Rule Compliance</div></body></html>

<html><head></head><body><div data-id="9-9.12">9.12&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I036: (output) <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">GSP Group</u> Take</u></u></u> to SAA</div></body></html>

<html><head></head><body><div data-id="9-9.13">9.13&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I039:&nbsp;(output) Information to TAA</div></body></html>

<html><head></head><body><div data-id="9-9.14">9.14&nbsp;&nbsp;<u class="defined-term">CDCA</u>-I050: (input) Data Exception Reports</div></body></html>

<html><head></head><body><div data-id="9-9.15">9.15&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I066: (input) <u class="defined-term">Demand Control Instruction</u>s to CDCA</div></body></html>

<html><head></head><body><div data-id="9-9.16">9.16&nbsp;&nbsp;<u class="defined-term"><u class="defined-term">CDCA</u></u>-I068: (output) <u class="defined-term">Period <u class="defined-term"><u class="defined-term">BM Unit</u></u> <u class="defined-term">Demand Disconnection</u> Volume</u>s</div></body></html>

<div data-id="9-9.18">9.18&nbsp;&nbsp;CRA-I013: (output, common) Issue Authentication Report</div>

<html><head></head><body><div data-id="9-9.19">9.19&nbsp;&nbsp;CRA-I015: (output, common) <u class="defined-term"><u class="defined-term">BM Unit</u></u> and <u class="defined-term">Energy Account</u> Registration Data</div></body></html>

<div data-id="9-9.20">9.20&nbsp;&nbsp;CRA-I017 (output): Credit Assessment Capability</div>

<div data-id="9-9.21">9.21&nbsp;&nbsp;CRA-I019: (output) Registration Data</div>

<html><head></head><body><div data-id="9-9.22">9.22&nbsp;&nbsp;CRA-I022: (output) <u class="defined-term"><u class="defined-term">Meter</u>ing <u class="defined-term">System</u></u> Details</div></body></html>

<div data-id="9-9.23">9.23&nbsp;&nbsp;CRA-I030: (input) Data Exception Reports</div>

<html><head></head><body><div data-id="9-9.24">9.24&nbsp;&nbsp;CRA-I045: (input) <u class="defined-term">Withdrawing <u class="defined-term">Party</u></u> Authorisation and Notification Details</div></body></html>

<html><head></head><body><div data-id="9">9&nbsp;&nbsp;Interfaces Within BSC Central <u class="defined-term">System</u>s</div></body></html>

CONTENTS

NETA Interface Definition and Design Document Part 2 – Interfaces to other service providers V55.0

Defined Terms

Cross-references