Annex S-2 forms part of Section S. It sets out how Supplier BM Units' Metered Volumes are determined for the purposes of Supplier Volume Allocation (SVA), including the detailed algebraic calculations. It covers: Supplier Meter Registration Services, Half Hourly (HH) and Non Half Hourly (NHH) Data Collection and Aggregation; SVA Standing Data and Periodic Data; Reconciliation Allocation Data Input; Daily Profile Coefficients; HH and NHH Metering System Consumption; GSP Group Correction; Adjustment of Supplier Deemed Takes; determination of BM Unit Allocation Demand Volumes; Reallocation Volumes; and Volume Allocation Runs

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<div data-id="annex-s-2-1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">1. GENERAL</div>

<div data-id="annex-s-2-2" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2. THE SUPPLIER METER REGISTRATION SERVICES</div>

<div data-id="annex-s-2-3" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3. HALF HOURLY DATA COLLECTION AND AGGREGATION</div>

<div data-id="annex-s-2-4" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4. NON HALF HOURLY DATA COLLECTION AND AGGREGATION</div>

<div data-id="annex-s-2-5" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">5. SUPPLIER VOLUME ALLOCATION DATA INPUT</div>

<div data-id="annex-s-2-6" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">6. PROFILE COEFFICIENTS</div>

<div data-id="annex-s-2-7" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">7. HALF HOURLY METERING SYSTEM CONSUMPTION</div>

<div data-id="annex-s-2-8" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">8. NON HALF HOURLY METERING SYSTEM CONSUMPTION</div>

<div data-id="annex-s-2-9" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">9. GSP GROUP CORRECTION</div>

<div data-id="annex-s-2-9A" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">9A SUPPLIER QUARTERLY VOLUME REPORT</div>

<div data-id="annex-s-2-9A.1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">9A.1 Determination of the <u class='defined-term'>Supplier Quarterly Volume Report</u></div>

<div data-id="annex-s-2-10" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">10. VOLUME ALLOCATION RUNS</div>

<div data-id="annex-s-2-11" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">11. TRADING DISPUTES</div>

<div data-id="annex-s-2-12" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">12. DELAYS AND FAILURES</div>

<div data-id="annex-s-2-13" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">13. DETERMINATION OF PERIOD BM UNIT GROSS NON-FINAL DEMAND FOR SVA NON-FINAL DEMAND FACILITIES</div>

<div data-id="annex-s-2" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">ANNEX S-2: SUPPLIER VOLUME ALLOCATION RULES</div>

<div data-id="amendment-record--section-s-2" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">AMENDMENT RECORD – SECTION S-2</div>

CONTENTS

BSC Section S-2: Supplier Volume Allocation Rules V34.0