ISO/IEC TR 21897:2022 情報技術 — データセンター — 建物のエネルギー性能に対する ISO 52000 シリーズの影響 | ページ 6

3.1.1

assessment boundary

boundary where the delivered and exported energy are measured or calculated

[SOURCE:ISO 52000-1:2017, 3.4.2]

3.1.2

bin

[SOURCE:ISO 52000-1:2017, 3.6.2]

3.1.3

delivered energy

energy, expressed per energy carrier, supplied to the data centre through the assessment boundary, to satisfy the uses taken into account or to produce the exported energy

Note 1 to entry: Delivered energy can be calculated for defined energy uses or it can be measured.

[SOURCE:ISO 52000-1:2017, 3.4.6, modified — Reference to"technical building systems" replaced by"data centre".]

3.1.4

distant

<to the data centre premises>not on-site nor nearby

[SOURCE:ISO 52000-1:2017, 3.4.7, modified — Domain changed from"<to the building site>" to"<to the data centre premises>".]

3.1.5

electricity grid

public electricity network

[SOURCE:ISO 52000-1:2017, 3.4.8]

3.1.6

energy carrier

substance or phenomenon that can be used to produce mechanical work or heat or to operate chemical or physical processes

[SOURCE:ISO 52000-1:2017, 3.4.9]

3.1.7

energy source

source from which useful energy can be extracted or recovered either directly or by means of a conversion or transformation process

[SOURCE:ISO 52000-1:2017, 3.4.15]

3.1.8

exported energy

energy, expressed per energy carrier, supplied by the technical data centre systems through the assessment boundary

Note 1 to entry: It can be specified by generation types [e.g. combined heat and power (CHP) and photovoltaic (PV)] in order to apply different conversion factors.

Note 2 to entry: Exported energy can be calculated or it can be measured.

[SOURCE:ISO 52000-1:2017, 3.4.20, modified — Reference to"building systems" replaced by"data centre systems"; in Note 1 to entry, reference to"weighting factors" replaced by"conversion factors".]

3.1.9

final energy

energy as delivered to an energy-using system

Note 1 to entry: This concept is sometimes referred to as"delivered energy".

[SOURCE:ISO/IEC 13273-1:2015, 3.1.11, modified — Note 2 to entry deleted.]

3.1.10

nearby

<energy source> usable only at local or district level, connected to the same branch of the distribution network (for electricity: distribution network meaning medium voltage or lower) or having a dedicated connection, requiring specific equipment for the assessed data centre to be connected to it (e.g. district heating or cooling)

Note 1 to entry: This definition is based on that given for the same term in ISO 52000-1:2017, 3.4.24.

Note 2 to entry: The concept of"nearby" is expressed here in relation to the data centre premises. See Annex A and Annex B for further explanation.

3.1.11

non-renewable energy

energy taken from a source which is depleted by extraction (e.g. fossil fuels)

Note 1 to entry: Resource that exists in a finite amount that cannot be replenished on a human time scale.

[SOURCE:ISO 52000-1:2017, 3.4.26]

3.1.12

on-site

building, premises and the parcel of land on which the data centre is located

Note 1 to entry: On-site is defining a strong link between the energy source (localization and interaction) and the data centre

[SOURCE:ISO 52000-1:2017, 3.4.27, modified — References to"the building" replaced by"the data centre" in both the definition and Note 1 to entry;"Building" added to the beginning of the definition.]

3.1.13

perimeter

<boundary classification>origin of delivered energy

Note 1 to entry: This document distinguishes between"on-site","nearby" and"distant" energy sources.

[SOURCE:ISO 52000-1:2017, 3.4.28]

3.1.14

primary energy

energy that has not been subjected to any conversion or transformation process

Note 1 to entry: Primary energy includes non-renewable energy and renewable energy. If both are taken into account it can be called total primary energy.

[SOURCE:ISO 52000-1:2017, 3.4.29]

3.1.15

technical data centre system

technical equipment for heating, cooling, ventilation, humidification, dehumidification, domestic hot water, lighting, building automation and control and electricity production (other than for IT services)

Note 1 to entry: A technical data centre system can refer to one or to several data centre services.

Note 2 to entry: A technical data centre system is composed of different sub-systems. A technical data centre sub-system is a part of a technical data centre that performs a special function (e.g. air handling, cold generation and distribution, water-based cooling, etc.).

Note 3 to entry: Electricity production can include electrical power supply generation equipment (including fuel storage), cogeneration, wind power and photovoltaic systems, transformers.

3.1.16

uninterruptible power system

UPS

combination of convertors, switches and energy storage devices (such as batteries), constituting a power system for maintaining continuity of load power in case of input power failure

Note 1 to entry: Continuity of load power occurs when voltage and frequency are within rated steady-state and transient tolerance bands, and with distortion and interruptions within the limits specified for the output port. Input power failure occurs when voltage and frequency are outside rated steady-state and transient tolerance bands, or with distortion or interruptions outside the limits specified for the UPS.

[SOURCE:IEC 62040-1:2017, 3.1.01]