46.0

<div data-id="section-t-1-1.1">1.1 Introduction</div>

<div data-id="section-t-1-1.2">1.2 Obligation and entitlement of Parties</div>

<div data-id="section-t-1-1.3">1.3 Data requirements</div>

<div data-id="section-t-1-1.4">1.4 Data receipt and validation</div>

<html><head></head><body><div data-id="section-t-1-1.5">1.5 <u class="defined-term">Market Index Definition Statement</u></div></body></html>

<html><head></head><body><div data-id="section-t-1-1.6">1.6 Provision of <u class="defined-term">Market Index Data</u></div></body></html>

<html><head></head><body><div data-id="section-t-1-1.6A">1.6A <u class="defined-term"><u class="defined-term">Loss of Load Probability</u> Calculation Statement</u></div></body></html>

<div data-id="section-t-1-1.7">1.7 Single imbalance price</div>

<html><head></head><body><div data-id="section-t-1-1.8">1.8 <u class="defined-term"><u class="defined-term">De Minimis <u class="defined-term">Acceptance</u> Threshold</u></u></div></body></html>

<html><head></head><body><div data-id="section-t-1-1.9">1.9 <u class="defined-term"><u class="defined-term">Continuous <u class="defined-term">Acceptance</u> Duration</u> Limit</u> (<u class="defined-term">CADL</u>)</div></body></html>

<html><head></head><body><div data-id="section-t-1-1.10">1.10 <u class="defined-term">Price Average Reference Volume</u></div></body></html>

<html><head></head><body><div data-id="section-t-1-1.11">1.11 <u class="defined-term">Replacement <u class="defined-term">Price Average Reference Volume</u></u></div></body></html>

<html><head></head><body><div data-id="section-t-1-1.12">1.12 <u class="defined-term">Value of Lost Load</u></div></body></html>

<div data-id="section-t-1-1.13">1.13 Annex T-2</div>

<html><head></head><body><div data-id="section-t-1-1.14">1.14 <u class="defined-term"><u class="defined-term">Replacement Reserve</u> Schedule Methodology Document</u></div></body></html>

<html><head></head><body><div data-id="section-t-1-1.15">1.15 <u class="defined-term">Winter Contingency <u class="defined-term">BM Unit</u></u>s</div></body></html>

<html><head></head><body><div data-id="section-t-1-1.16">1.16 <u class="defined-term"><u class="defined-term"><u class="defined-term">Supplier</u> Compensation Reference Price</u></u></div></body></html>

<div data-id="section-t-1">1. GENERAL</div>

<html><head></head><body><div data-id="section-t-2-2.1">2.1 Delivering and Offtaking <u class="defined-term">Trading Unit</u>s</div></body></html>

<html><head></head><body><div data-id="section-t-2-2.2">2.2 <u class="defined-term">Transmission Loss Factor</u>s</div></body></html>

<html><head></head><body><div data-id="section-t-2-2.3">2.3 Determination of the <u class="defined-term">Transmission Loss Multiplier</u>s</div></body></html>

<div data-id="section-t-2">2. ALLOCATION OF TRANSMISSION LOSSES</div>

<html><head></head><body><div data-id="section-t-3-3.1">3.1 Conversion of Data Received from the <u class="defined-term">NETSO</u></div></body></html>

<html><head></head><body><div data-id="section-t-3-3.2">3.2 Establishment of final physical notification (FPN<sub>ij</sub>(t))</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.3">3.3 Establishment of <u class="defined-term"><u class="defined-term">Bid-<u class="defined-term">Offer</u> Volume</u></u> (qBO<sup>n</sup><sub>ij</sub>(t))</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.4">3.4 Establishment of <u class="defined-term"><u class="defined-term"><u class="defined-term">Acceptance</u> Volume</u></u> (qA<sup>k</sup><sub>ij</sub>(t))</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.4A">3.4A Establishment of <u class="defined-term"><u class="defined-term">Bid-<u class="defined-term">Offer</u> Upper Range</u></u> (BOUR<sup>n</sup><sub>ij</sub>(t)) and <u class="defined-term"><u class="defined-term">Bid-<u class="defined-term">Offer</u> Lower Range</u></u> (BOLR<sup>n</sup><sub>ij</sub>(t)) in relation to FPN and <u class="defined-term">Submitted <u class="defined-term">Bid-<u class="defined-term">Offer</u> Pair</u></u>s</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.4B">3.4B Creation of <u class="defined-term">Bid-<u class="defined-term">Offer</u> Pair</u>s</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.5">3.5 Establishment of <u class="defined-term"><u class="defined-term">Bid-<u class="defined-term">Offer</u> Upper Range</u></u> (BOUR<sup>n</sup><sub>ij</sub>(t)) and <u class="defined-term"><u class="defined-term">Bid-<u class="defined-term">Offer</u> Lower Range</u></u> (BOLR<sup>n</sup><sub>ij</sub>(t)) in relation to <u class="defined-term">Unsubmitted <u class="defined-term">Bid-<u class="defined-term">Offer</u> Pair</u></u>s</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.6">3.6 Determination of <u class="defined-term"><u class="defined-term">Accepted <u class="defined-term">Bid-<u class="defined-term">Offer</u> Volume</u></u></u> (qABO<sup>kn</sup><sub>ij</sub> (t))</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.7">3.7 <u class="defined-term"><u class="defined-term">Accepted <u class="defined-term">Offer</u> Volume</u></u> (qAO<sup>kn</sup><sub>ij</sub> (t)) and <u class="defined-term"><u class="defined-term">Accepted Bid Volume</u></u> (qAB<sup>kn</sup><sub>ij</sub> (t))</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.8">3.8 Determination of <u class="defined-term"><u class="defined-term">Period <u class="defined-term">Accepted <u class="defined-term">Offer</u> Volume</u></u></u> (QAO<sup>kn</sup><sub>ij</sub>), <u class="defined-term"><u class="defined-term">Period <u class="defined-term">Accepted Bid Volume</u></u></u> (QAB<sup>kn</sup><sub>ij</sub>), <u class="defined-term"><u class="defined-term">Period RR <u class="defined-term">Accepted <u class="defined-term">Offer</u> Volume</u></u></u> (RRAO<sup>kn</sup><sub>ij</sub>) and <u class="defined-term"><u class="defined-term">Period RR <u class="defined-term">Accepted Bid Volume</u></u></u> (RRAB<sup>kn</sup><sub>ij</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.9">3.9 Determination of <u class="defined-term"><u class="defined-term">Period <u class="defined-term"><u class="defined-term">BM Unit</u></u> Total <u class="defined-term">Accepted <u class="defined-term">Offer</u> Volume</u></u></u> (QAO<sup>n</sup><sub>ij</sub>), <u class="defined-term"><u class="defined-term">Period <u class="defined-term"><u class="defined-term">BM Unit</u></u> Total <u class="defined-term">Accepted Bid Volume</u></u></u> (QAB<sup>n</sup><sub>ij</sub>), <u class="defined-term"><u class="defined-term">Period RR Total <u class="defined-term">Accepted <u class="defined-term">Offer</u> Volume</u></u></u> (RRAO<sup>n</sup><sub>ij</sub>), <u class="defined-term"><u class="defined-term">Period RR Total <u class="defined-term">Accepted Bid Volume</u></u></u> (RRAB<sup>n</sup><sub>ij</sub>) and <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">Quarter</u> Hour</u></u> RR Activation</u> Volume</u></u> (RRAV<sub>iJ</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.10">3.10 Determination of <u class="defined-term"><u class="defined-term">Period <u class="defined-term">BM Unit</u> <u class="defined-term">Offer</u> Cashflow</u></u> (CO<sup>n</sup><sub>ij</sub>) and <u class="defined-term"><u class="defined-term">Period <u class="defined-term">BM Unit</u> Bid Cashflow</u></u> (CB<sup>n</sup><sub>ij</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.11">3.11 Determination of <u class="defined-term"><u class="defined-term">Period <u class="defined-term">BM Unit</u> Cashflow</u></u> (CBM<sub>ij</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.11A">3.11A Determination of <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">Quarter</u> Hour</u></u> RR Cashflow</u></u> (CCR<sub>iJ</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.11.B">3.11.B Determination of <u class="defined-term"><u class="defined-term">Period RR <u class="defined-term">BM Unit</u> Cashflow</u></u> (CRR<sub>ij</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.12">3.12 Determination of <u class="defined-term"><u class="defined-term">Total <u class="defined-term">System</u></u></u> BM Cashflow (TCBM<sub>j</sub>) and <u class="defined-term"><u class="defined-term">Daily <u class="defined-term"><u class="defined-term">Party</u></u> <u class="defined-term">BM Unit</u> Cashflow</u></u> (CBM<sub>p</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.12A">3.12A Determination of <u class="defined-term">Network Gas Supply Total Bid Payment</u></div></body></html>

<html><head></head><body><div data-id="section-t-3-3.13">3.13 Determination of <u class="defined-term"><u class="defined-term">Reserve Scarcity Price</u></u> (RSVP<sub>j</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.14">3.14 Determination of <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">STOR</u> Action</u> Price</u></u> (STAP<sup>t</sup><sub>j</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.15">3.15 Determination of <u class="defined-term"><u class="defined-term">System</u></u> and <u class="defined-term"><u class="defined-term">Balancing <u class="defined-term">Demand Control Volume</u></u></u>s (QSDC<sub>cj</sub> and QBDC<sub>cj</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.16">3.16 Not used.3.17 Determination of <u class="defined-term"><u class="defined-term">Deemed Standard Product Shape</u></u> (qDSP<sup>J</sup><sub>ij</sub>(t))</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.18">3.18 Determination of <u class="defined-term"><u class="defined-term">Deemed Standard Product Volume</u></u> (qDSPV<sup>J</sup><sub>ij</sub>(t))</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.19">3.19 Determination of <u class="defined-term"><u class="defined-term">Deemed Standard Product <u class="defined-term">Offer</u> Volume</u></u> (qDSPO<sup>J</sup><sub>ij</sub>(t)) and <u class="defined-term"><u class="defined-term">Deemed Standard Product Bid Volume</u></u> (qDSPB<sup>J</sup><sub>ij</sub>(t))</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.20">3.20 Determination of <u class="defined-term"><u class="defined-term">Period <u class="defined-term">Deemed Standard Product <u class="defined-term">Offer</u> Volume</u></u></u> (DSPO<sup>J</sup><sub>ij</sub>) and <u class="defined-term"><u class="defined-term">Period <u class="defined-term">Deemed Standard Product Bid Volume</u></u></u> (DSPB<sup>J</sup><sub>ij</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.21">3.21 Determination of <u class="defined-term"><u class="defined-term">Total <u class="defined-term">Period <u class="defined-term">Deemed Standard Product <u class="defined-term">Offer</u> Volume</u></u></u></u> (TDSPO<sub>ij</sub>) and <u class="defined-term"><u class="defined-term">Total <u class="defined-term">Period <u class="defined-term">Deemed Standard Product Bid Volume</u></u></u></u> (TDSPB<sub>ij</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.22">3.22 Determination of <u class="defined-term"><u class="defined-term">Replacement Reserve</u></u> Instructed <u class="defined-term"><u class="defined-term">Offer</u></u> Deviation (IOD<sub>ij</sub>) and <u class="defined-term">Replacement Reserve</u> Instructed Bid Deviation (IBD<sub>ij</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.23">3.23 Determination of <u class="defined-term"><u class="defined-term"><u class="defined-term">Replacement Reserve</u> Period Instructed <u class="defined-term">Offer</u> Deviation Cashflow</u></u> (CDO<sub>ij</sub>)and <u class="defined-term"><u class="defined-term"><u class="defined-term">Replacement Reserve</u> Period Instructed Bid Deviation Cashflow</u></u> (CDB<sub>ij</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.24">3.24 Determination of the <u class="defined-term"><u class="defined-term"><u class="defined-term">Replacement Reserve</u> Period Instruction Deviation Cashflow</u></u> (CDR<sub>ij</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-3-3.25">3.25 Determination of <u class="defined-term"><u class="defined-term"><u class="defined-term">Total <u class="defined-term">System</u></u> RR Cashflow</u></u> (TCRR<sub>j</sub>), <u class="defined-term"><u class="defined-term">Daily <u class="defined-term">Party</u> RR Cashflow</u></u> (CRR<sub>p</sub>) and <u class="defined-term"><u class="defined-term">Daily <u class="defined-term"><u class="defined-term">Party</u></u> <u class="defined-term">RR Instruction</u> Deviation Cashflow</u></u> (CDR<sub>p</sub>)</div></body></html>

<div data-id="section-t-3">3. SETTLEMENT OF BALANCING ACTIONS</div>

<html><head></head><body><div data-id="section-t-4-4.1">4.1 Treatment of <u class="defined-term"><u class="defined-term">Interconnector</u> <u class="defined-term">BM Unit</u></u>s</div></body></html>

<html><head></head><body><div data-id="section-t-4-4.2">4.2 Determination of <u class="defined-term"><u class="defined-term"><u class="defined-term">BM Unit</u> <u class="defined-term"><u class="defined-term">Meter</u>ed Volume</u></u></u> (QM<sub>ij</sub>) for <u class="defined-term"><u class="defined-term">Supplier</u> <u class="defined-term">BM Unit</u></u>s</div></body></html>

<html><head></head><body><div data-id="section-t-4-4.2A">4.2A Determination of <u class="defined-term"><u class="defined-term"><u class="defined-term">BM Unit</u> <u class="defined-term"><u class="defined-term">Meter</u>ed Volume</u></u></u> (QM<sub>ij</sub>) for <u class="defined-term">Secondary <u class="defined-term">BM Unit</u></u>s</div></body></html>

<html><head></head><body><div data-id="section-t-4-4.3">4.3 Determination of Information Imbalance Volumes (QII<sub>ij</sub>) and Charges (CII<sub>ij</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-4-4.3A">4.3A Determination of <u class="defined-term"><u class="defined-term">Market Price</u></u> (MP<sub>j</sub>)</div></body></html>

<html><head></head><body><div data-id="section-t-4-4.3AA">4.3AA Determination of <u class="defined-term"><u class="defined-term">Deviation Volume</u></u> (QDE<sub>ij</sub>) for <u class="defined-term">Trading Secondary BM Uni</u>ts</div></body></html>

<html><head></head><body><div data-id="section-t-4-4.3B">4.3B Determination of <u class="defined-term"><u class="defined-term">Period <u class="defined-term"><u class="defined-term">Supplier</u> <u class="defined-term">BM Unit</u></u> Delivered Volume</u></u> (QBSD<sub>ij</sub>) for <u class="defined-term">Secondary <u class="defined-term">BM Unit</u></u>s</div></body></html>

<html><head></head><body><div data-id="section-t-4-4.3C">4.3C Determination of <u class="defined-term"><u class="defined-term">Period <u class="defined-term">Secondary <u class="defined-term">BM Unit</u></u> <u class="defined-term">Supplier</u> Compensation</u></u> (QSV<sub>ij</sub>)</div></body></html>

<div data-id="section-t-4-4.4">4.4 Determination of Energy Imbalance Prices (SBPj and SSPj)</div>

<html><head></head><body><div data-id="section-t-4-4.5">4.5 Determination of <u class="defined-term"><u class="defined-term">Credited Energy Volume</u></u>s (QCE<sub>iaj</sub>) for each <u class="defined-term">Energy Account</u></div></body></html>

<html><head></head><body><div data-id="section-t-4-4.6">4.6 Determination of Energy Imbalance (QAEI<sub>aj</sub>) for each <u class="defined-term">Energy Account</u></div></body></html>

<html><head></head><body><div data-id="section-t-4-4.7">4.7 Determination of Energy Imbalance Cashflows (CAEI<sub>aj</sub> and TCEI<sub>j</sub>)</div></body></html>

<div data-id="section-t-4-4.8">4.8 Non-Delivery Rule and Calculations</div>

<html><head></head><body><div data-id="section-t-4-4.9">4.9 Determination of <u class="defined-term"><u class="defined-term"><u class="defined-term">System</u> Operator Cashflow</u></u> (CSO<sub>j</sub>)</div></body></html>

<div data-id="section-t-4-4.10">4.10 Determination of Residual Cashflow Allocations</div>

<div data-id="section-t-4-4.11">4.11 Determination of Compensation Cashflow Allocations</div>

<div data-id="section-t-4">4. SETTLEMENT CALCULATIONS</div>

<div data-id="section-t-5-5.1">5.1 Responsibility of SAA</div>

<html><head></head><body><div data-id="section-t-5-5.2">5.2 Requirement to carry out <u class="defined-term"><u class="defined-term">Settlement</u> Run</u>s</div></body></html>

<html><head></head><body><div data-id="section-t-5-5.3">5.3 Submission of <u class="defined-term">Settlement</u> data</div></body></html>

<div data-id="section-t-5-5.4">5.4 Failure of SAA's systems, etc</div>

<div data-id="section-t-5">5. SETTLEMENT</div>

<html><head></head><body><div data-id="section-t-6-6.1">6.1 Determination of <u class="defined-term"><u class="defined-term">Trading Unit</u></u> <u class="defined-term"><u class="defined-term">Export</u></u> and <u class="defined-term"><u class="defined-term">Import</u></u> Volumes (QTUE<sub>rj</sub> and QTUI<sub>rj</sub>)</div></body></html>

<div data-id="section-t-6">6. ADDITIONAL CALCULATIONS</div>

<html><head></head><body><div data-id="section-t-7">7 SUBMISSION OF REPLACEMENT RESERVE DATA TO THE <u class="defined-term">SVAA</u></div></body></html>

<div data-id="section-t-8">8 CALCULATION OF BM UNIT CHARGEABLE DEMAND FOR THE EMR SETTLEMENT SERVICES PROVIDER</div>

<div data-id="section-t">SECTION T: SETTLEMENT AND TRADING CHARGES</div>

<div data-id="part-1--derivation-of-final-ranked-set-of-system-actions-1">1. INTRODUCTION</div>

<div data-id="part-1--derivation-of-final-ranked-set-of-system-actions-2">2. RANKED SETS</div>

<html><head></head><body><div data-id="part-1--derivation-of-final-ranked-set-of-system-actions-3">3. <u class="defined-term">CADL</u> FLAGGING</div></body></html>

<div data-id="part-1--derivation-of-final-ranked-set-of-system-actions-4">4. SO-FLAGGING</div>

<div data-id="part-1--derivation-of-final-ranked-set-of-system-actions-5">5. EMERGENCY INSTRUCTIONS</div>

<div data-id="part-1--derivation-of-final-ranked-set-of-system-actions-6">6. DE MINIMIS TAGGING</div>

<div data-id="part-1--derivation-of-final-ranked-set-of-system-actions-7">7. ARBITRAGE TAGGING</div>

<div data-id="part-1--derivation-of-final-ranked-set-of-system-actions-8">8. CLASSIFICATION</div>

<div data-id="part-1--derivation-of-final-ranked-set-of-system-actions-9">9. NIV TAGGING</div>

<div data-id="part-1--derivation-of-final-ranked-set-of-system-actions-10">10. REPLACEMENT PRICING OF SECOND-STAGE FLAGGED SYSTEM ACTIONS</div>

<div data-id="part-1--derivation-of-final-ranked-set-of-system-actions-11">11. PAR TAGGING</div>

<html><head></head><body><div data-id="part-1--derivation-of-final-ranked-set-of-system-actions">Part 1 – Derivation of <u class="defined-term">Final <u class="defined-term">Ranked Set</u></u> of <u class="defined-term"><u class="defined-term">System</u> Action</u>s</div></body></html>

<html><head></head><body><div data-id="part-2---detailed-provisions-12">12. <u class="defined-term">CADL</u> FLAGGING</div></body></html>

<div data-id="part-2---detailed-provisions-13">13. ARBITRAGE TAGGING</div>

<div data-id="part-2---detailed-provisions-14">14. NIV TAGGING</div>

<div data-id="part-2---detailed-provisions-15">15. REPLACEMENT PRICE</div>

<div data-id="part-2---detailed-provisions-16">16. PAR TAGGING</div>

<div data-id="part-2---detailed-provisions">Part 2 - Detailed Provisions</div>

<div data-id="part-3--terms-for-reporting-17">17. Table of terms</div>

<div data-id="part-3--terms-for-reporting">Part 3 – Terms for Reporting</div>

<html><head></head><body><div data-id="annex-t-1">Annex T-1: <u class="defined-term">Final <u class="defined-term">Ranked Set</u></u> of <u class="defined-term"><u class="defined-term">System</u> Action</u>s</div></body></html>

<div data-id="annex-t-2-1">1. Introduction</div>

<html><head></head><body><div data-id="annex-t-2-1A">1A. <u class="defined-term">Transmission Loss Factor</u>s relating to the <u class="defined-term">BSC Year</u> commencing 1st April 2025</div></body></html>

<html><head></head><body><div data-id="annex-t-2-2">2. <u class="defined-term">LFM Specification</u></div></body></html>

<html><head></head><body><div data-id="annex-t-2-3">3. <u class="defined-term">Load Flow Model</u></div></body></html>

<html><head></head><body><div data-id="annex-t-2-4">4. <u class="defined-term"><u class="defined-term">Zone</u></u>s, <u class="defined-term">Node</u>s and Mapping</div></body></html>

<html><head></head><body><div data-id="annex-t-2-5">5. <u class="defined-term">Transmission Network Data</u> and <u class="defined-term"><u class="defined-term">HVDC Boundary</u> Data</u></div></body></html>

<html><head></head><body><div data-id="annex-t-2-6">6. <u class="defined-term">Distribution Network Data</u></div></body></html>

<html><head></head><body><div data-id="annex-t-2-7">7. <u class="defined-term">Sample <u class="defined-term"><u class="defined-term"><u class="defined-term"><u class="defined-term">Settlement</u> Period</u></u></u></u>s</div></body></html>

<div data-id="annex-t-2-8">8. Determination of TLFs</div>

<html><head></head><body><div data-id="annex-t-2-9">9. Determination of the <u class="defined-term"><u class="defined-term"><u class="defined-term">Transmission Loss Factor</u> Adjustment</u></u> (<u class="defined-term"><u class="defined-term">TLFA</u></u><sub>S</sub>)</div></body></html>

<html><head></head><body><div data-id="annex-t-2-10">10. Role and powers of the <u class="defined-term">NETSO</u></div></body></html>

<html><head></head><body><div data-id="annex-t-2">Annex T-2: <u class="defined-term">Transmission Loss Factor</u>s</div></body></html>

<div data-id="amendment-record--section-t">AMENDMENT RECORD – SECTION T</div>

CONTENTS

BSC Section T: Settlement and Trading Charges V46.0

Defined Terms

Cross-references