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CONTENTS

  • 1 Introduction
    • 1.1 Scope and Purpose of the Statement
    • 1.2 Balancing and Settlement Code Provision
    • 1.3 Main Users of the Procedure and their Responsibilities
    • 1.4 Use of the Procedure
    • 1.5 Review Procedure for the LoLP Calculation Statement
    • 1.6 Associated Code Subsidiary Documents
    • 1.7 Abbreviations, Acronyms and Definitions
  • 2 Context
    • 2.1 Definition of LoLP and Indicative LoLP
  • 3 Common calculation building blocks
    • 3.1 Inputs
    • 3.2 Modelling Conventional Generation Capacity (GCAP)
      • 3.2.1 Treatment of NDZ (i.e. Lead Time (LT) + 30 minutes)
      • 3.2.2 Constraints
      • 3.2.3 Short Term Operating Reserve (STOR)
      • 3.2.4 Supplemental Balancing Reserve (SBR)
    • 3.3 Modelling Availability Factors (AV)
    • 3.4 Modelling Capacity Requirement (CR)
    • 3.5 Modelling Wind (W)
    • 3.6 Common lead times for publishing values
  • 4 Static Loss of Load Probability Function Method
    • 4.1 Overview
    • 4.2 Method for calculating static LoLP values from de-rated margin
    • 4.3 Frequency of calculating and publishing Final LoLP values
    • 4.4 Creation of Static LoLP function and lookup table
    • 4.5 Review of Static LoLP function and look-up table
  • 5 De-rated Margin
    • 5.1 Overview
    • 5.2 Method for calculating De-rated Margin values
    • 5.3 Frequency of calculating and publishing De-rated Margin values
  • 6 Dynamic Loss of Load Probability Function Method
    • 6.1 Overview
    • 6.2 Method for calculating dynamic LoLP values
    • 6.3 Frequency of calculating and publishing Final and Indicative LoLP values

Loss of Load Probability Calculation Methodolgy Statement V3.0

Effective From Date:01/10/2024
Status:LIVE
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