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ISO 50049:2020 Calculation methods for energy efficiency and energy consumption variations at country, region and city levels >
ISO 50049:2020 Calculation methods for energy efficiency and energy consumption variations at country, region and city levels, 2020
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Factors to be calculated
- 4.1 General
- 4.1.1 Overview of methods included in the document
- 4.1.2 Objectives of calculations
- 4.1.3 Types of explanatory factors to be calculated
- 4.2 Indicators, methods and applications
- 4.2.1 Indicators
- 4.2.2 Types of data used
- 4.2.3 Structure effects
- 4.2.4 Indicator choice for energy efficiency and energy savings calculation
- 4.2.5 Climatic corrections of energy consumption
- 5 Evaluation of structure effects in the variation of energy intensity
- 5.1 General
- 5.2 Calculation methods
- 5.2.1 Introduction to the calculation of structure effect
- 5.2.2 Decomposition of the energy intensity variation with the Divisia method
- 5.3 Calculation issues related to structure effects
- 5.3.1 General
- 5.3.2 Options of calculation of the Divisia decomposition
- 5.3.3 Disaggregation level
- 5.3.4 Chained or unchained calculation
- 6 Calculation of energy efficiency indices
- 6.1 Objective and overview of calculation
- 6.2 General calculation
- 6.2.1 General
- 6.2.2 Step 1: Selection of subsectors or energy uses
- 6.2.3 Step 2: Choice of indicators
- 6.2.4 Step 3: Calculation of indicator values
- 6.2.5 Step 4: Calculation of indicator trends as index
- 6.2.6 Step 5: Calculation of weighting factors
- 6.2.7 Step 6: Calculation of energy efficiency indices by sector
- 6.2.8 Step 7: Calculation of an overall energy efficiency index
- 6.3 Computational issues in the calculation of the energy efficiency indices
- 6.3.1 General
- 6.3.2 Options for calculation
- 6.3.3 Indicators resulting in negative energy efficiency improvement
- 6.4 Reliability of energy efficiency indices
- 6.4.1 General
- 6.4.2 Status of data sources
- 6.4.3 Appropriateness of the indicator
- 6.4.4 Length of period
- 7 Decomposition analysis of energy consumption variation
- 7.1 Objective and overview of calculation
- 7.2 General calculation
- 7.2.1 General
- 7.2.2 Definition of explanatory factors
- 7.2.3 Calculation of the activity factor
- 7.2.4 Calculation of the energy savings factor
- 7.2.5 Calculation of structure effects
- 7.2.6 Calculation of other factors
- 7.3 Other issues related to the decomposition of the energy consumption variation
- 7.3.1 General
- 7.3.2 Calculation over a period
- 7.3.3 Indicators resulting in negative energy efficiency improvement
- Annex A (informative) Calculation of structure effects
- Annex B (informative) Examples of energy efficiency indicators
- Annex C (informative) Examples of explanatory factors
- Annex D (informative) Climatic corrections of energy consumption
- Bibliography [Go to Page]