Elexon explains the Half Hourly Data Aggregation (HHDA) exception reporting process under the BSC. It explains each exception type and guidance on resolving them.

<div data-id="introduction" style="text-align:left">Introduction</div>

<div data-id="obligations" style="text-align:left">OBLIGATIONS</div>

<div data-id="exception-reporting-process" style="text-align:left">EXCEPTION REPORTING PROCESS</div>

<div data-id="exception-report-process" style="text-align:left">EXCEPTION REPORT PROCESS</div>

<div data-id="management-of-exceptions" style="text-align:left">MANAGEMENT OF EXCEPTIONS</div>

<div data-id="investigation-of-exceptions-by-suppliers-and-their-agents" style="text-align:left">INVESTIGATION OF EXCEPTIONS BY SUPPLIERS AND THEIR AGENTS</div>

<div data-id="need-more-information" style="text-align:left">Need more information?</div>

<div data-id="appendix-a" style="text-align:left">APPENDIX A</div>

CONTENTS

Exception Reporting in the Half Hourly Market V3.0

Defined Terms

Cross-references