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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 2589-2008 General principles for calculation of the comprehensive energy consumption, and the following main technical changes have been made with respect to GB/T 2589-2008:
——The definitions of "energy calorific value", "energy source equivalent value", "comprehensive energy consumption", "comprehensive energy consumption for unit output value" and "comprehensive energy consumption for unit output of product” are modified (see 3.2, 3.3, 3.5 ~ 3.8 of this standard; 3.2, 3.3, 3.5 ~ 3.8 of Edition 2008), and the definition of "standard coal coefficient" is added (see 3.9);
——The “boundary division” is added (see Clause 5);
——The "Energy types and scope for comprehensive energy consumption calculation" is modified and included in the "Calculation principle" and "Calculation scope” respectively (see Clauses 4 and 6 of this standard; Clause 4 of Edition 2008);
——The “Principles for various kinds of energy to convert into standard coal” is changed to “Requirements for converting into standard coal” (see Clause 8 of this standard; Clause 6 of Edition 2008);
——The Annexes A and B are modified (see Annexes A and B of this standard; Annexes A and B of Edition 2008);
This standard was proposed by and is under the jurisdiction of the National Technical Committee 20 on Energy Foundation and Management Standardization Administration of China (SAC/TC 20).
The previous editions of this standard are as follows:
——GB/T 2589-1981, GB/T 2589-1990 and GB/T 2589-2008.
General rules for calculation of the comprehensive energy consumption
1 Scope
This standard specifies the calculation principle, boundary division, calculation scope, calculation method and requirements for converting into standard coal.
This standard is applicable to the calculation of energy consumption indexes of energy consumption units (including secondary energy consumption units or their components).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 3102.4 Quantities and units of heat
GB/T 3484 The general principles for energy balance of enterprise
GB 17167 General principle for equipping and managing of the measuring instrument of energy in organization of energy using
GB/T 28749 The method of drawing energy balance network diagram for enterprises
GB/T 28751 The method of editing energy balance table for enterprises
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
energy-consumed medium
consumed working substances that are not used as raw materials, nor enter into products in the process of production, and need to directly consume energy in production or preparation
3.2
energy calorific value
equivalent amount for different forms of energy converting to each other. According to joule, the legal unit of measurement of energy, the conversion coefficients of different forms of energy, such as heat energy, electric energy and mechanical energy, are all 1
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3.3
energy source equivalent value
amount of primary energy converted from the energy consumed to produce secondary energy in unit quantity or various kinds of energy consumed by energy-consumed medium, expressed in standard coal
3.4
energy consumption unit
energy consuming unit with a defined boundary
3.5
comprehensive energy consumption
sum of all kinds of energy actually consumed in the production of a certain product or the provision of a certain service during the statistical reporting period, which are converted according to the required calculation methods and units
Note to entry 1: For manufacturers, comprehensive energy consumption refers to the total energy consumption of the primary production system, subsidiary production system and auxiliary production system within the statistical reporting period.
Note to entry 2: The units of comprehensive energy consumption are usually gce, kgce and tce.
3.6
comprehensive energy consumption for unit output value
ratio of comprehensive energy consumption to the gross output value or added value (comparable value) of energy consumption unit within the statistical reporting period
Note to entry: The units of comprehensive energy consumption for unit output value are usually kgce/CNY x 104, tce/CNY x 104, etc.
3.7
comprehensive energy consumption for unit output of product
ratio of the comprehensive energy consumption to the output (operational quantity, work quantity, and service quantity) of the qualified product within the statistical reporting period
Note to entry 1: Products refer to qualified final products or intermediate products.
Note to entry 2: The concept of comprehensive energy consumption per unit operational quantity of energy consumption units that take the operational quantity of raw materials processing as the energy consumption assessment object is also included in this definition.
Note to entry 3: The unit of comprehensive energy consumption for unit output of product, according to different dimensions of product output (operational quantity, work quantity, and service quantity), may include: kgce/kg, kgce/m3, etc.
3.8
comparable comprehensive energy consumption for unit output of product
comprehensive energy consumption for unit output of product calculated by correcting the main factors affecting the energy consumption of the product in order to realize the comparability of the comprehensive energy consumption for unit output of product of the same product in the same industry
Note to entry: The unit of comparable comprehensive energy consumption for unit output of product, according to different dimensions of product output (operational quantity, work quantity, and service quantity), may include: kgce/kg, kgce/m3, etc.
3.9
standard coal coefficient
quantity of standard coal converted from the physical quantity of energy unit or that of energy consumed by the energy-consumed medium of production unit
Note to entry: According to different physical quantities of energy, the unit of standard coal coefficient may include: kgce/kg, kgce/m3, kgce/(kW·h), kgce/MJ, etc.
4 Calculation principles
4.1 Compliance. The types of energy included in the comprehensive energy consumption calculation shall meet the requirements of national energy statistics.
4.2 Integrity. Comprehensive energy consumption calculation shall include all energy and energy-consumed medium actually consumed in the production process, and shall not be omitted or recalculated.
4.3 Accuracy. The calculation of comprehensive energy consumption shall accurately reflect the real, measurable and verifiable energy consumption of energy consumption units.
4.4 Consistency. In case of calculating the comprehensive energy consumption within the statistical reporting period, the boundary division, calculation methods, etc. shall be consistent.
5 Boundary division
5.1 The appropriate calculation boundary shall be specified according to the relevant laws, regulations and standards. For the purpose and actual situation of the comprehensive energy consumption calculation, the boundary may be the whole energy consumption unit, or a secondary energy consumption unit, or its components.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Calculation principles
5 Boundary division
6 Calculation scope
7 Calculation methods
8 Requirements for converting into standard coal
Annex A (Informative) Standard coal coefficient (reference value) of various kinds of energy
Annex B (Informative) Standard coal coefficient (reference value) of main energy-consumed medium (calculated by energy source equivalent value)
