Annex X-2 provides a glossary of the BSC's defined (capitalised) technical terms and acronyms, as used in the BSC and Code Subsidiary Documents. It also sets out the BSC's technical and algebraic conventions. It covers: use of mathematical operators; sign conventions; use of summations; interpolation of variables; timing conventions; and use of subscripts and superscripts. For a glossary of general BSC defined terms, please refer to Annex X-1.

<div data-id="annex-x-2-1-1.1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">1.1 Introduction</div>

<div data-id="annex-x-2-1-1.2" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">1.2 Use of Mathematical Operators</div>

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

<div data-id="annex-x-2-2-2.1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.1 Introduction</div>

<div data-id="annex-x-2-2-2.2" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.2 Use of Subscripts and Other Expressions</div>

<div data-id="annex-x-2-2-2.3" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.3 Glossary of Terms</div>

<div data-id="annex-x-2-2-2.4" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.4 Sign Convention - Active Energy and Active Power</div>

<div data-id="annex-x-2-2-2.5" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.5 Sign Convention - Cashflows</div>

<div data-id="annex-x-2-2-2.6" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2.6 Use of Summations</div>

<div data-id="annex-x-2-2" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">2. TECHNICAL TERMS AND INTERPRETATION APPLYING EXCEPT IN RELATION TO SECTION S</div>

<div data-id="annex-x-2-3-3.1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3.1 Introduction</div>

<div data-id="annex-x-2-3-3.2" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3.2 Use of Subscripts and Other Expressions</div>

<div data-id="annex-x-2-3-3.3" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3.3 Use of Summations</div>

<div data-id="annex-x-2-3-3.4" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3.4 Glossary of Terms</div>

<div data-id="annex-x-2-3-3.5" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3.5 Consumption Component Classes</div>

<div data-id="annex-x-2-3-3.6" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3.6 Linear Interpolation of Variables</div>

<div data-id="annex-x-2-3-3.7" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3.7 Sign Convention</div>

<div data-id="annex-x-2-3" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">3. TECHNICAL TERMS AND INTERPRETATION APPLYING IN RELATION TO SECTION S</div>

<div data-id="annex-x-2-4-4.1" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4.1 Introduction</div>

<div data-id="annex-x-2-4-4.3" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4.3 Settlement Period Times</div>

<div data-id="annex-x-2-4-4.3A" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4.3A Quarter Hour Times</div>

<div data-id="annex-x-2-4-4.4" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4.4 Point Variables</div>

<div data-id="annex-x-2-4-4.5" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4.5 Interpolation of Values of Point Variables Between Spot Times Supplied</div>

<div data-id="annex-x-2-4-4.6" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4.6 Evaluation of Period Variables from Supplied and Interpolated Spot Variables</div>

<div data-id="annex-x-2-4" style="margin-left:0.69in;text-align:justify;text-indent:-0.69in">4. TIMING CONVENTIONS</div>

<div data-id="use-of-subscripts-and-superscripts-applying-except-in-relation-to-section-s" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Use of Subscripts and Superscripts Applying Except in Relation to Section S</div>

<div data-id="table-x1-" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Table X–1 –</div>

<div data-id="terms-and-expressions-applying-except-in-relation-to-section-s" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Terms and Expressions Applying Except in Relation to Section S</div>

<div data-id="table-x2-" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Table X–2 –</div>

<div data-id="glossary-of-acronyms-applying-except-in-relation-to-section-s" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Glossary of Acronyms Applying Except In Relation To Section S</div>

<div data-id="table-x-3-" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Table X-3 –</div>

<div data-id="use-of-subscripts-and-superscripts-applying-to-section-s" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Use of Subscripts and Superscripts Applying to Section S</div>

<div data-id="table-x4-" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Table X–4 –</div>

<div data-id="use-of-summations-applying-to-section-s" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Use of Summations Applying to Section S</div>

<div data-id="table-x5-" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Table X–5 –</div>

<div data-id="definitions-applying-to-section-s" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Definitions Applying To Section S</div>

<div data-id="table-x6-" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Table X–6 –</div>

<div data-id="list-of-acronyms-applicable-to-section-s" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">List of Acronyms Applicable to Section S</div>

<div data-id="table-x7-" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Table X–7 –</div>

<div data-id="list-of-valid-consumption-component-classes" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">List of Valid Consumption Component Classes</div>

<div data-id="table-x-8" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Table X-8</div>

<div data-id="table-x9add-test" style="margin-left:0.69in;text-indent:-0.69in;text-align: center">Table X–9(add test)</div>

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

<div data-id="annex-x-2" style="text-align:center">ANNEX X-2: TECHNICAL GLOSSARY(for testing)</div>

CONTENTS

295184 v3 V1.3

Defined Terms

Cross-references