27.0

<div data-id="1-1.1" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">1.1 Purpose</div>

<div data-id="1-1.2" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">1.2 Scope</div>

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

<div data-id="2" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">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="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.1.1 <u class='defined-term'>ECVNA</u>A Approval</div>

<div data-id="4-4.1-4.1.2" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.1.2 MRVNAA Approval</div>

<div data-id="4-4.1-4.1.3" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.1.3 Notification Collection</div>

<div data-id="4-4.1-4.1.4" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.1.4 Credit Checking</div>

<div data-id="4-4.1-4.1.5" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.1.5 Aggregation and reporting to SAA</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 Requirements Summary</div>

<div data-id="4-4.5" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.5 Numbering Scheme for Requirements Definitions</div>

<div data-id="4-4.6" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">4.6 Attributes of Individual Requirements</div>

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

<div data-id="5-5.1" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.1 <u class='defined-term'>ECVAA</u>-F001: Process Registration Data</div>

<div data-id="5-5.2" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.2 <u class='defined-term'>ECVAA</u>-F002: Process Credit Limit Data</div>

<div data-id="5-5.3" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.3 <u class='defined-term'>ECVAA</u>-F003: Process <u class='defined-term'>ECVNA</u>A</div>

<div data-id="5-5.4" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.4 <u class='defined-term'>ECVAA</u>-F004: Process <u class='defined-term'>MVRNA</u>A</div>

<div data-id="5-5.5" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.5 <u class='defined-term'>ECVAA</u>-F005: Process <u class='defined-term'>Energy Contract Volume Notification</u>s</div>

<div data-id="5-5.6" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.6 <u class='defined-term'>ECVAA</u>-F006: Process <u class='defined-term'>Metered Volume Reallocation Notification</u>s</div>

<div data-id="5-5.7" style="text-align:left">5.7 <u class='defined-term'>ECVAA</u>-F007: Perform Credit Check</div>

<div data-id="5-5.8" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.8 <u class='defined-term'>ECVAA</u>-F008: Aggregate <u class='defined-term'>Energy Contract Volume</u>s</div>

<div data-id="5-5.9" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.9 <u class='defined-term'>ECVAA</u>-F009: Process Exception Data</div>

<div data-id="5-5.10" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.10 <u class='defined-term'>ECVAA</u>-F010: Calculate <u class='defined-term'>Party</u> Indebtedness</div>

<div data-id="5-5.11" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.11 <u class='defined-term'>ECVAA</u>-F011: Process <u class='defined-term'>Credit Cover</u> Minimum Eligible Amount Request</div>

<div data-id="5-5.12" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.12 <u class='defined-term'>ECVAA</u>-F012: Process Volume Notification Nullification</div>

<div data-id="5-5.13" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.13 <u class='defined-term'>ECVAA</u>-F013 Manage <u class='defined-term'>ECVAA System Failure</u> / Withdrawal</div>

<div data-id="5-5.14" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.14 <u class='defined-term'>ECVAA</u>-F014: Matching of submitted ECVNs</div>

<div data-id="5-5.15" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.15 <u class='defined-term'>ECVAA</u>-F015: Matching of submitted MVRNs</div>

<div data-id="5-5.16" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.16 Notes on Notification Processing and Reporting</div>

<div data-id="5-5.17" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.17 <u class='defined-term'>ECVAA</u>-F016: <u class='defined-term'>ECVAA</u> Web Service Common Functionality.</div>

<div data-id="5-5.18" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.18 <u class='defined-term'>ECVAA</u>-F017: <u class='defined-term'>ECVAA</u> Web Service – BSC <u class='defined-term'>Party</u> View ECVNs Functionality.</div>

<div data-id="5-5.19" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.19 <u class='defined-term'>ECVAA</u>-F018: <u class='defined-term'>ECVAA</u> Web Service – BSC <u class='defined-term'>Party</u> View MVRNs Functionality.</div>

<div data-id="5-5.20" style="text-align:left">5.20 <u class='defined-term'>ECVAA</u>-F019: <u class='defined-term'>ECVAA</u> Web Service - <u class='defined-term'>ECVNA</u> Functionality.</div>

<div data-id="5-5.21" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.21 <u class='defined-term'>ECVAA</u>-F020: <u class='defined-term'>ECVAA</u> Web Service - <u class='defined-term'>ECVNA</u> ECVN Submission Functionality.</div>

<div data-id="5-5.22" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.22 <u class='defined-term'>ECVAA</u>-F021: <u class='defined-term'>ECVAA</u> Web Service - <u class='defined-term'>MVRNA</u> Functionality.</div>

<div data-id="5-5.23" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.23 <u class='defined-term'>ECVAA</u>-F022: <u class='defined-term'>ECVAA</u> Web Service - <u class='defined-term'>MVRNA</u> MVRN Submission Functionality.</div>

<div data-id="5-5.24" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.24 <u class='defined-term'>ECVAA</u>-F023: Banning/Unbanning Individual User Access to the <u class='defined-term'>ECVAA</u> Web service Functionality</div>

<div data-id="5-5.25" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.25 <u class='defined-term'>ECVAA</u>-F024: Process Withdrawing Party Authorisation and Notification Details</div>

<div data-id="5-5.26" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.26 <u class='defined-term'>ECVAA</u>-F025: Calculate Period Final <u class='defined-term'>Physical Notification</u> Volumes</div>

<div data-id="5-5.27" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.27 <u class='defined-term'>ECVAA</u>-F026: Process removal of ECVNs / MVRNs from <u class='defined-term'>ECVAA</u> for a <u class='defined-term'>Party</u> in Section H <u class='defined-term'>Default</u></div>

<div data-id="5-5.28" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">5.28 <u class='defined-term'>ECVAA</u>-F027: Process Wholesale Market Activity Notifications</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 Interfaces Requirements</div>

<div data-id="7-7.1" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">7.1 <u class='defined-term'>ECVAA</u>-N001: Web Security Requirements</div>

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

<div data-id="8-8.1" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">8.1 <u class='defined-term'>ECVAA</u>-S001: Service Availability</div>

<div data-id="8-8.2" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">8.2 <u class='defined-term'>ECVAA</u>-S002: Volumetric Requirements</div>

<div data-id="8-8.3" style="margin-left:0.59in;text-align:left;text-indent:-0.59in">8.3 <u class='defined-term'>ECVAA</u>-S003: Resilience 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-glossary" style="text-align:left">Appendix A Glossary</div>

<div data-id="appendix-b-requirements-compliance-matrix" style="text-align:left">Appendix B Requirements Compliance Matrix</div>

<div data-id="appendix-c-not-used" style="text-align:left">Appendix C Not used</div>

<div data-id="appendix-d-business-process-model" style="text-align:left">Appendix D Business Process Model</div>

CONTENTS

Energy Contract Volume Aggregation Agent V27.0

Defined Terms

Cross-references