QC/T 1157-2022Calculation method of comprehensive energy consumption per unit output of automobile products (English PDF)
汽车产品单位产量综合能耗计算方法
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
April 8, 2022
Implementation date
October 1, 2022
Scope
QC/T 1157-2022 is the English-translated version of 汽车产品单位产量综合能耗计算方法.
QC/T 1157-2022 specifies how automobile producers calculate the energy consumed per unit of output. It gives the terms and definitions, the statistical scope and the calculation method for comprehensive energy consumption per unit output, taken as the ratio of energy consumed to qualified products made in the same period.
Statistics cover primary energy, secondary energy and purchased energy-consumed media, and include heating and cooling of the production system as well as losses in internal storage, conversion, distribution and supply.
Self-generated compressed air is counted as the electricity drawn by the compressor, the reporting period must run at least 12 consecutive months, and the annexes give conversion factors to standard coal.
Vehicle manufacturers and energy auditors use it. It was issued on 8 April 2022 and has applied since 1 October 2022.
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Document preview — QC/T 1157-2022
National Standard of the People's Republic of China
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- Foreword7
- 1 Scope8
- 2 Normative references8
- 3 Terms and definitions8
- 4 Statistical requirements9
- 5 Calculation method10
- Appendix A (Informative) Conversion coefficients of various energy sources, electricity, and heating power to standard coal (reference values)13
- Appendix B (Normative) Energy equivalent conversion relationship of energy- consumed medium15
1 Scope
This document specifies the terms and definitions, statistical scope, and calculation methods of comprehensive energy consumption per unit output of automobile products.
This document is applicable to the calculation of comprehensive energy consumption per unit output of automobile products.
2 Normative references
The following documents contain the provisions which, through normative reference in this document, constitute the essential provisions of this document. For the dated referenced documents, only the versions with the indicated dates are applicable to this document; for the undated referenced documents, only the latest version (including all the amendments) is applicable to this document.
GB/T 2589-2020 General rules for calculation of the comprehensive energy consumption
GB 17167 General principle for equipping and managing of the measuring instrument of energy in organization of energy using
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 Total comprehensive energy consumption of automobile products
In the statistical reporting period, the physical quantities of various energy sources that is actually consumed during the entire production process of automobile products.
3.2 Comprehensive energy consumption for unit output of automobile products
During the statistical reporting period, the ratio of the comprehensive energy consumption of automobile products to the total amount of qualified products produced in the same period.
4 Statistical requirements
4.2.3 The energy consumed for heating and cooling of the production system and supporting production system activities shall also be included in the scope of comprehensive energy consumption statistics.
4.2.4 The loss of energy and energy-consumed medium due to the internal storage, conversion, distribution, and supply of the energy-consuming organization shall also be included in the comprehensive energy consumption.
4.3 Types of comprehensive energy consumption statistics
4.3.1 The types of energy statistics for comprehensive energy consumption of automobile products include primary energy, secondary energy, and energy consumed by the outsourced energy-consumed medium.
Note 1: Primary energy refers to energy resources that exist in the original forms in nature and have not been processed.
Note 2: Secondary energy refers to energy products converted from primary energy processing.
4.3.2 The part of the energy-consumed medium that comes from the self-production of the enterprise shall be counted according to the energy consumption corresponding to the production, and the outsourced energy-consumed medium shall be converted in accordance with the requirements of Appendix B.
4.3.3 The energy consumed by the compressed air produced by the enterprise itself shall be converted according to the electricity consumed by the working of the compressor.
4.4 Statistical period
The statistical period shall be a certain period of continuous production, and the statistical period shall be at least not less than 12 natural months.
4.5 Statistics on the number of automobile products
The number of automobile products to be counted shall be the number of qualified automobile products produced within the statistical period.
5 Calculation method
5.1 Calculation method of energy consumption of production system
The energy consumed by the production system in the production process of automobile products is calculated according to the formula (1):
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
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Related Standards
GB 17167-2006 — General principle for equipping and managing of the measuring instrument of energy in organization of energy using
GB 17167-2025 — General rules for energy measuring instrument equipping and managing of energy user
GB/T 2589-2020 — General rules for calculation of the comprehensive energy consumption
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