The purpose of this document is to provide a complete specification of the set of business requirements that the CRA Service must satisfy for all of its various User types. These range from the BSC Parties, to BSCCo Ltd and its various Agents, including the operators of the CRA itself and the other BSC Services. The Central Registration Agent (CRA) is one of the suite of seven services that support the operation of the Balancing and Settlement Code (BSC). The role of the CRA is to maintain a master register of information relating to the registration of participants, trading units and physical plant such as Boundary Points and interconnectors.

24.0

<div data-id="1" style="margin-left:0.59in;text-indent:-0.59in;text-align: justify">1 Management Summary</div>

<div data-id="2-2.1" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">2.1 Amendment History</div>

<div data-id="2-2.2" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">2.2 References</div>

<div data-id="2-2.3" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">2.3 Acronyms</div>

<div data-id="2" style="margin-left:0.59in;text-indent:-0.59in;text-align: justify">2 Introduction</div>

<div data-id="3" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">3 Scope of Specification</div>

<div data-id="4-4.1-4.1.1" style="text-align:left"><b>4.1.1 Registration Process</b></div>

<div data-id="4-4.1" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.1 Summary of Business Requirements</div>

<div data-id="4-4.2" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.2 Service Context</div>

<div data-id="4-4.3" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.3 User Requirements Source Documents</div>

<div data-id="4-4.4" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.4 Numbering Scheme for Requirement Definitions</div>

<div data-id="4-4.5" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.5 Attributes of Individual Requirements</div>

<div data-id="4" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4 Business and <u class='defined-term'>System</u> Overview</div>

<div data-id="5-5.1" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.1 CRA-F001: Register BSC <u class='defined-term'>Party</u></div>

<div data-id="5-5.2" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.2 CRA-F002: Maintain Authentication Data</div>

<div data-id="5-5.3" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.3 CRA-F003: Authenticate <u class='defined-term'>Party</u></div>

<div data-id="5-5.4" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.4 CRA-F004: Allocate <u class='defined-term'>BSC Party ID</u></div>

<div data-id="5-5.5" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.5 CRA-F005: Allocate BSC <u class='defined-term'>Party</u> <u class='defined-term'>Energy Account</u></div>

<div data-id="5-5.6" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.6 CRA-F006: View / Maintain BSC <u class='defined-term'>Party</u> Registration Details</div>

<div data-id="5-5.7" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.7 CRA-F007: Register <u class='defined-term'>Interconnector Administrator</u></div>

<div data-id="5-5.8" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.8 CRA-F008: View / Maintain <u class='defined-term'>Interconnector Administrator</u> Data</div>

<div data-id="5-5.9" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.9 CRA-F009: Register BSC <u class='defined-term'>Party Agent</u></div>

<div data-id="5-5.10" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.10 CRA-F010: View / Maintain BSC <u class='defined-term'>Party Agent</u></div>

<div data-id="5-5.11" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.11 CRA-F011: Register BSC Service Agent</div>

<div data-id="5-5.12" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.12 CRA-F012: View / Maintain BSC Service Agent</div>

<div data-id="5-5.13" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.13 CRA-F013: <u class='defined-term'>BM Unit</u> Registration</div>

<div data-id="5-5.14" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.14 CRA-F014: View / Maintain <u class='defined-term'>BM Unit</u> Registration</div>

<div data-id="5-5.15" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.15 CRA-F015: <u class='defined-term'>Trading Unit</u> Registration</div>

<div data-id="5-5.16" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.16 CRA-F016: View / Maintain <u class='defined-term'>Trading Unit</u> Registration Details</div>

<div data-id="5-5.17" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.17 CRA-F017: Register CRA <u class='defined-term'>Boundary Point</u>s and <u class='defined-term'>System</u> Connection Points Details</div>

<div data-id="5-5.18" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.18 CRA-F034: Register <u class='defined-term'>Metering System</u> Details</div>

<div data-id="5-5.19" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.19 CRA-F018: View / Maintain <u class='defined-term'>Boundary Point</u> and <u class='defined-term'>System</u> Connection Point Details</div>

<div data-id="5-5.20" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.20 CRA-F019: View / Maintain <u class='defined-term'>Interconnector</u> Registration</div>

<div data-id="5-5.21" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.21 CRA-F020: Maintain <u class='defined-term'>Credit Assessment Load Factor</u></div>

<div data-id="5-5.22" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.22 CRA-F021: Requirement not currently used</div>

<div data-id="5-5.23" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.23 CRA-F022: Issue Credit Assessment Capability</div>

<div data-id="5-5.24" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.24 CRA-F023: Validate Registrations</div>

<div data-id="5-5.25" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.25 CRA-F024: Report Registration Details</div>

<div data-id="5-5.26" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.26 CRA-F025: Distribute Register Data</div>

<div data-id="5-5.27" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.27 CRA-F026: Maintain Reference Data</div>

<div data-id="5-5.28" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.28 CRA-F027: SLA Reporting</div>

<div data-id="5-5.29" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.29 CRA-F028: Requirement not currently used</div>

<div data-id="5-5.30" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.30 CRA-F029: Register <u class='defined-term'>Interconnector</u></div>

<div data-id="5-5.31" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.31 CRA-F030: Register <u class='defined-term'>GSP Group</u> and GSP Details</div>

<div data-id="5-5.32" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.32 CRA-F031: View / Maintain <u class='defined-term'>GSP Group</u> Registrations</div>

<div data-id="5-5.33" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.33 CRA-F032: Maintain <u class='defined-term'>Transmission Loss Factor</u>s</div>

<div data-id="5-5.34" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.34 CRA-F033: Receive Registration Exception Reports</div>

<div data-id="5-5.35" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.35 CRA-F035: View / Maintain <u class='defined-term'>Metering System</u> Details</div>

<div data-id="5-5.36" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.36 CRA-F036: Maintain Flexible Reporting Requirements</div>

<div data-id="5-5.37" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.37 CRA-F037: Transfer from <u class='defined-term'>SMRS</u></div>

<div data-id="5-5.38" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.38 CRA-F038: Transfer to <u class='defined-term'>SMRS</u></div>

<div data-id="5-5.39" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.39 CRA-F039: Register / View / Maintain <u class='defined-term'>Market Index Data Provider</u></div>

<div data-id="5-5.40" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.40 CRA-F040: Provide BSCCo with Withdrawals Checklist</div>

<div data-id="5-5.41" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.41 CRA-F041: <u class='defined-term'>GC and DC Breach Monitoring</u></div>

<div data-id="5-5.42" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.42 CRA-F042: Identify CRA-estimated GC and DC amounts</div>

<div data-id="5-5.43" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.43 CRA-F043: Manage GC and DC Breach Challenges</div>

<div data-id="5-5.44" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.44 CRA-F044: Manage Conflicting GC/DC Submissions</div>

<div data-id="5-5.45" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.45 CRA-F045: Publish GC and DC Breach data</div>

<div data-id="5" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5 Functional Requirements</div>

<div data-id="6" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">6 Interface Requirements</div>

<div data-id="7-7.1" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">7.1 CRA-N001: Input Interface Requirements</div>

<div data-id="7" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">7 Non Functional Requirements</div>

<div data-id="8-8.1" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">8.1 CRA-S001: Message Security and Encryption</div>

<div data-id="8-8.2" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">8.2 CRA-S002: Data Migration Requirements</div>

<div data-id="8-8.3" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">8.3 CRA-S003: Archiving Requirements</div>

<div data-id="8" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">8 Service Requirements</div>

<div data-id="9" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">9 User Roles and Activities</div>

<div data-id="10" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">10 Future enhancements</div>

<div data-id="appendix-a-requirements-compliance-matrix" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">Appendix A Requirements Compliance Matrix</div>

<div data-id="appendix-b-logical-data-model" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">Appendix B Logical Data Model</div>

<div data-id="appendix-c-business-process-model" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">Appendix C Business Process Model</div>

<div data-id="d-1-gen-n001" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">D-1 GEN-N001: Audit Requirements</div>

<div data-id="d-2-gen-n002" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">D-2 GEN-N002: Security Requirements</div>

<div data-id="d-3-gen-n003" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">D-3 GEN-N003: Operational Control</div>

<div data-id="d-4-gen-n004" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">D-4 GEN-N004: Euro Compliance</div>

<div data-id="d-5-gen-n005" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">D-5 GEN-N005: Help Desk Queries</div>

<div data-id="d-6-gen-n006" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">D-6 GEN-N006: Help Desk SLA Reporting</div>

<div data-id="d-7-gen-n007" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">D-7 GEN-N007: Input Interface Requirements</div>

<div data-id="appendix-d-neta-central-service-common-non-functional-requirements" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">Appendix D NETA Central Service Common Non Functional Requirements</div>

<div data-id="e-1-gen-s001" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">E-1 GEN-S001: Volumetric Requirements</div>

<div data-id="e-2-gen-s002" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">E-2 GEN-S002: Resilience and Availability Requirements</div>

<div data-id="e-3-gen-s003" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">E-3 GEN-S003: Backup and Recovery Requirements</div>

<div data-id="e-4-gen-s004" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">E-4 GEN-S004: Archiving Requirements</div>

<div data-id="e-5-gen-s005" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">E-5 GEN-S005: Synchronise <u class='defined-term'>System</u> Time</div>

<div data-id="e-6-gen-s006" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">E-6 GEN-S006: Query Resolution</div>

<div data-id="e-7-gen-s007" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">E-7 GEN-S007: Performance Requirements</div>

<div data-id="e-8-gen-s008" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">E-8 GEN-S008: Data Retention Requirements</div>

<div data-id="appendix-e-neta-central-services-common-service-requirements" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">Appendix E NETA Central Services Common Service Requirements</div>

<div data-id="f-1-gen-euro" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">F-1 GEN-EURO: Euro Compliance</div>

<div data-id="appendix-f-neta-central-services-common-future-requirements" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">Appendix F NETA Central Services Common Future Requirements</div>

<div data-id="g-1-glossary-of-acronyms" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">G-1 Glossary of acronyms:</div>

<div data-id="g-2-glossary-of-terms" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">G-2 Glossary of terms:</div>

<div data-id="appendix-g-glossary" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">Appendix G Glossary</div>

CONTENTS

Central Registration Agent (CRA) V24.0