ISO 22400-2:2014/Amd 1:2017

INTERNATIONAL ISO
STANDARD 22400-2
First edition
2014-01-15
AMENDMENT 1
2017-04
Automation systems and
integration — Key performance
indicators (KPIs) for manufacturing
operations management —
Part 2:
Definitions and descriptions
AMENDMENT 1: Key performance
indicators for energy management
Systèmes d’automatisation et intégration — Indicateurs de
la performance clé pour le management des opérations de
fabrication —
Partie 2: Définitions et descriptions
AMENDEMENT 1: Indicateurs de la performance clé pour le
management de l’énergie
Reference number
ISO 22400-2:2014/Amd.1:2017(E)
©
ISO 2017
ISO 22400-2:2014/Amd.1:2017(E)

© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved

ISO 22400-2:2014/Amd.1:2017(E)

Foreword
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This document was prepared by Technical Committee ISO/TC 184, Automation systems and integration,
Subcommittee SC 5, Interoperability, integration, and architectures for enterprise systems and automation
applications.
A list of all parts in the ISO 22400 series can be found on the ISO website.
ISO 22400-2:2014/Amd.1:2017(E)
Automation systems and integration — Key performance
indicators (KPIs) for manufacturing operations
management —
Part 2:
Definitions and descriptions
AMENDMENT 1: Key performance indicators for energy
management
Introduction
Add the following paragraph and new Figure 3 at the end of the Introduction. Renumber Figures 3 to 5
as Figures 4 to 6.
KPIs for energy management within MOM are in accordance with ISO 50001 and ISO 20140, and they
complement MOM indicators regarding energy consumption. KPIs for energy management support the
evaluation of direct energy consumption per work unit or per order, and per manufactured product
item. Figure 3 illustrates the approach and the focus in the determination of energy consumption.
Figure 3 — Approach and focus in the determination of energy consumption
ISO 22400-2:2014/Amd.1:2017(E)

Clause 2, Terms and definitions
Add the following term and definition:
2.5
direct energy consumption
energy consumed by the work unit during the actual unit busy time
Note 1 to entry The concept of “direct energy consumption” in ISO 20140-1 represents the energy consumed by
a work unit for a direct operation (as defined in ISO 20140-1:2013, 3.4). ISO 20140 enables an energy efficiency
evaluation quantified by KPIs with a granularity that itemizes the energy consumption per equipment part of
the work unit. The granularity of this part of ISO 22400 does not itemize the work unit energy consumption per
equipment part of the work unit. The difference in the granularity of the KPI and scope between ISO 22400 and
ISO 20140 leads to different, though not contradictory, definitions of the term “direct energy consumption” in the
two standards.
Note 2 to entry If a work centre fulfils the same requirements as a work unit, it can be considered as a work unit.
Note 3 to entry The attribute direct is used for the purpose of consistency with the concept direct cost.
Clause 3, Symbols and abbreviated terms
Add the following abbreviated terms:
ADEC actual direct energy consumption
PDEI planned direct energy consumption per item
Clause 5
Add the following subclauses, including new Figure 7, immediately after 5.7.5:
5.8  Energy elements
5.8.1  Actual direct energy consumption (ADEC)
The actual direct energy consumption is the measured direct energy consumption per work unit and
during actual unit busy time.
5.8.2  Planned direct energy consumption per item (PDEI)
The planned direct energy consumption shall be the planned energy consumption in average for
producing one product item.
NOTE This factor is analogous to the planned run time per item.
5.8.3  Time period
A time period is the time during which a work unit is in a specific state. With each change of state a new
time period always begins.
5.8.4  Fundamentals of energy types
5.8.4.1  Conversion to a unified energy unit
Energy measurements are commonly made in various units of energy and shall be converted to the
industry standard, namely, kWh, as illustrated in Figure 7. This conversion is necessary to obtain a valid
summation of the different expressions of energy usage for computing the direct energy consumption.
For this purpose, conversion factors depending on the type of energy need to be determined.
2 © ISO 2017 – All rights reserved

ISO 22400-2:2014/Amd.1:2017(E)

Figure 7 — Conversion to energy unit of measure from measured attributes
5.8.4.2  Conversion factors
5.8.4.2.1  Conversion factors provided by energy suppliers
Conversion factors for energy types are usually obtained directly from an energy supplier. These
conversions introduce measurement uncertainties from a number of different sources, which should be
understood and incorporated in calculations.
EXAMPLE
Natural gas 10 kWh/m 12,66 kWh/kg
Gas oil 9,93 kWh/l 11,68 kWh/kg
Bunker oil 10,27 kWh/l 11,17 kWh/kg
Hard coal approx. 8,14 kWh/kg
Lignite approx. 5,35 kWh/kg
5.8.4.2.2  Conversion factors requi
...