This is the Service Description for the Central Data Collection Agent (CDCA) appointed by ELEXON to provide a central data collection/aggregation service for BSC Metering Systems registered with the Central Registration Agent (CRA).

24.0

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

<div data-id="2" style="margin-left:0.59in;text-align:justify;text-indent:-0.59in"><span>2. Period of Responsibility</span></div>

<div data-id="3" style="margin-left:0.59in;text-align:justify;text-indent:-0.59in"><span>3. Service</span><span><span> Availability</span></span></div>

<div data-id="4" style="margin-left:0.59in;text-align:justify;text-indent:-0.59in"><span>4. Registration Obligations</span></div>

<div data-id="5" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>5. <u class='defined-term'>Meter</u>ing Obligations</span></div>

<div data-id="6" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>6. <u class='defined-term'>Meter</u>ing Protocols</span></div>

<div data-id="7" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>7. <u class='defined-term'>Metering System</u> Proving Tests</span></div>

<div data-id="8" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">8. <span>Collection of <u class='defined-term'>Metering System</u> Data</span></div>

<div data-id="10" style="margin-left:0.59in;text-align:justify;text-indent:-0.59in"><span>10. Missing or Incorrect Data – Data Estimation</span></div>

<div data-id="10" style="margin-left:0.59in;text-align:justify;text-indent:-0.59in"><span>10A. Commissioning End-to End Check (CEEC)</span></div>

<div data-id="11" style="margin-left:0.59in;text-align:justify;text-indent:-0.59in"><span>11. <u class='defined-term'>Metering System</u> Faults</span></div>

<div data-id="12" style="margin-left:0.59in;text-align:justify;text-indent:-0.59in"><span>12. <u class='defined-term'>Meter Advance Reconciliation</u>s</span></div>

<div data-id="13" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>13. Work on <u class='defined-term'>CVA Metering System</u>s</span></div>

<div data-id="14" style="margin-left:0.59in;text-align:justify;text-indent:-0.59in"><span>14. Change of <u class='defined-term'>Meter</u> or <u class='defined-term'>Outstation</u></span></div>

<div data-id="15" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>15. Loss Factors</span></div>

<div data-id="16" style="margin-left:0.59in;text-align:justify;text-indent:-0.59in"><span>16. Retention of <u class='defined-term'>Metered Data</u></span></div>

<div data-id="17" style="margin-left:0.59in;text-align:justify;text-indent:-0.59in"><span>17. Timekeeping</span></div>

<div data-id="18" style="margin-left:0.59in;text-align:justify;text-indent:-0.59in"><span>18. Input/Output Dataflows</span></div>

<div data-id="19" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>19. Reporting</span></div>

<div data-id="20" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>20. <u class='defined-term'>Metering System</u> <u class='defined-term'>Communication</u> Links</span></div>

<div data-id="21" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>21. Market Data Obligations</span></div>

<div data-id="22" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>22. <u class='defined-term'>Meter</u> Volume Aggregation and Processing</span></div>

<div data-id="23" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>23. <u class='defined-term'>Meter</u> Volume Data Transfer</span></div>

<div data-id="24" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>24. Transfer of Registration of <u class='defined-term'>Metering System</u>s between <u class='defined-term'>CMRS</u> and <u class='defined-term'>SMRS</u></span></div>

<div data-id="25" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>25. Trading Dispute</span></div>

<div data-id="26" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>26. Support Derivation of <u class='defined-term'>Transmission Loss Factor</u>s </span></div>

<div data-id="27" style="margin-left:0.59in;text-indent:-0.59in;text-align: left"><span>27. Support TAA Category 1 Non-Compliance Materiality Calculations</span></div>

<div data-id="appendix-a--inputoutput-dataflows" style="margin-left:0.59in;text-indent:-0.59in;text-align: left">APPENDIX A – INPUT/OUTPUT DATAFLOWS</div>

CONTENTS

Central Data Collection Agent Service Description V24.0

Defined Terms

Cross-references