ISO 17742:2015 国、地域、都市のエネルギー効率と節約の計算 | ページ 5

2.1

adjustment factor

quantifiable parameter affecting energy consumption

Note 1 to entry: In this International Standard, adjustment factors for indicator-based methods are restricted to corrections for variations in weather conditions.

Note 2 to entry: In this International Standard, adjustment factors for measure-based methods include production throughput, weather conditions, working hours, behaviour related parameters (e.g. indoor temperature and light level), etc.

Note 3 to entry: Factors at high aggregation level that affect the savings attributed to policies or programs (e.g. free rider effect or rebound effect) are not part of the adjustment factors.

[SOURCE:ISO 17743, modified — with notes instead of examples.]

2.2

city

geographical area under control of a municipal administration

Note 1 to entry: The municipal administration is subject to provincial and national governance.

2.3

country

geographical area under control of a national government

Note 1 to entry: According to the definition of the UN Statistical Office.

2.4

deemed savings

default value for unitary energy savings, estimated and/or agreed to by stakeholders

Note 1 to entry: The default value can be based on available measurements or calculations.

2.5

diffusion indicator

indicator showing the penetration of energy-saving devices, systems, or practices

2.6

double counting

counting the savings for a combination of facilitating measures, focusing on the same end-user action, as the sum of what would be saved by each measure alone, when the combined savings is less than the sum

Note 1 to entry: In this International Standard, double counting is not valid for elementary units of action (e.g. the saving effect of insulation and high efficiency boiler) where it is termed technical interaction.

Note 2 to entry: In this International Standard, double counting is used for calculation at high aggregation level (e.g. all dwellings), while the term consequential effects can be used at lower aggregation level (e.g. individual company) in other International Standards.

[SOURCE:CEN 16212, modified — definition adapted.]

2.7

driver

quantity that is assumed to predominantly influence the level of energy consumption under consideration in indicator-based methods

Note 1 to entry: A driver can be an activity (e.g. production) but also a property of a system (e.g. amount of floor space).

2.8

elementary unit of action

entity for which unitary energy savings can be defined and summed up

Note 1 to entry: Generally, it relates to an energy using system or a participant in an energy savings programme.

2.9

end-user action

energy efficiency improvement measure implemented on the site of an end user

2.10

energy baseline

quantitative reference(s) providing a basis for comparison of energy performance

Note 1 to entry: An energy baseline usually reflects a specified period of time.

Note 2 to entry: An energy baseline can be adjusted using variables affecting energy use and/or consumption such as production level, degree days (outdoor temperature), etc.

Note 3 to entry: With respect to energy performance, the definition for this International Standard only concerns energy efficiency.

[SOURCE:ISO/IEC 13273‑1, 3.3.10, modified — adapted notes.]

2.11

energy carrier

substance or phenomenon that can be used to produce mechanical work or heat or to operate a process

[SOURCE:ISO/IEC 13273‑1, 3.1.2, modified — without note.]

2.12

energy consumption

quantity of energy applied

Note 1 to entry: The unit of energy consumption can be expressed related to the involved energy carrier but also in the standard unit for energy, Joule.

[SOURCE:ISO/IEC 13273‑1, 3.1.15]

2.13

energy consumption in final units

final energy when energy carriers are counted according to their energy content

Note 1 to entry: The energy content values can be taken from energy statistics where they are applied to sum up the energy consumption of different energy carriers.

2.14

energy consumption in primary units

final energy when energy carriers are counted according to the energy consumption needed to deliver them to the end users

Note 1 to entry: For instance, the consumption of electricity is multiplied with a factor of 2,5 when the conversion of fuels to electricity has an efficiency of 40 %.

Note 2 to entry: In this way, it is possible to account for the fact that savings on final energy consumption can also reduce transformation losses in the energy supply system.

2.15

energy efficiency

ratio or other quantitative relationship between an output of performance, service, goods, or energy and an input of energy

[SOURCE:ISO/IEC 13273‑1, 3.4.1, modified — without notes.]

2.16

energy efficiency improvement

increase in energy efficiency as a result of technological, design, behavioural, and/or economic changes

[SOURCE:ISO/IEC 13273‑1, 3.4.3]

2.17

energy efficiency improvement measure

action normally leading to an energy efficiency improvement which can be verified, measured or estimated

Note 1 to entry: Measure encompasses both end-user action and facilitating measure.

2.18

energy end user

individual or a group of individuals or organization with responsibility for operating an energy using system

Note 1 to entry: The energy end user can differ from the customer who might purchase the energy but does not necessarily use it.

[SOURCE:ISO/IEC 13273‑1, 3.1.12]

2.19

energy savings

reduction of energy consumption compared to an energy baseline

Note 1 to entry: Energy savings can be realized or expected.

Note 2 to entry: Energy savings can be the result of implementation of an action(s) or of autonomous progress.

[SOURCE:ISO/IEC 13273‑1, 3.3.11, last part of definition and notes adapted]

2.20

energy use

manner or kind of application of energy

Note 1 to entry: Characteristics of energy use include, but are not limited to, the purpose of the use, source(s) choice, and application.

[SOURCE:ISO/IEC 13273‑1, 3.1.14]

2.21

energy using system

physical item with defined system boundaries, using energy

Note 1 to entry: An energy using system can be one or many plants, processes, parts of a process, buildings, parts of a building, machines, equipment, products, etc.

[SOURCE:ISO/IEC 13273‑1, 3.1.11]

2.22

facilitating measure

energy efficiency service or an improvement programme offered to an energy end user

Note 1 to entry: A facilitating measure is offered by a stakeholder that is not the energy end user.

2.23

feedstock energy

energy of raw materials which is used for non-energy purposes

[SOURCE:ISO/IEC 13273‑1, 3.1.3, modified — adapted example.]

2.24

final energy

energy as delivered to the energy using system

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

[SOURCE:ISO/IEC 13273‑1, 3.1.13]

2.25

free rider effect

provision of financial incentives for saving measures to end users who would have taken the measures anyway

Note 1 to entry: The free rider effect can be estimated through, for example, a comparison with energy savings realized in similar circumstances but without the subsidy scheme.

2.26

gross energy savings

energy savings using adjustment factors, but except correction for double counting, multiplier effect, free riders, and rebound effect

Note 1 to entry: Gross energy savings include adjustment factors mentioned in 2.1.

2.27

indicator-based method

determination of energy savings from the variation of energy consumption indicators over a period

2.28

indicator-based savings

energy savings calculated with indicator-based methods

2.29

measure-based method

determination of energy savings from end-user actions using unitary energy savings and elementary units of action

Note 1 to entry: If end-user actions are due to facilitating measures, such as policy, the measure-based methods consider savings due to policy.

2.30

measure-based savings

energy savings calculated with measure-based methods

2.31

multiplier effect

effect of a facilitating measure after the measure has ended or in fields outside the focus

Note 1 to entry: In the standard, the multiplier effect is used for calculations at high aggregation level (e.g. all dwellings), while the term consequential effects can be used at lower aggregation level (e.g. individual company) in other standards.

2.32

net energy savings

energy savings with use of the adjustment factor(s) and, if relevant, correction factors for double counting, multiplier effect, free riders and rebound effect

2.33

rebound effect

change in energy using behaviour that yields an increased level of service and that occurs as a result of taking an end-use action

Note 1 to entry: The rebound effect can take many forms. Apart from the case in the example (higher internal temperature setting) the effect is often difficult to determine.

2.34

region

geographical area with the ability to influence energy savings, not being a city or a country

2.35

saving lifetime

number of years for which savings of end-user actions remain present

Note 1 to entry: The savings lifetime can take into account deterioration of yearly savings.

2.36

specific energy consumption

quotient describing the total amount of energy necessary to generate a unit of output, activity, economic value, or service

[SOURCE:ISO/IEC 13273‑1, 3.1.17]

2.37

structure effect

changes in activities or characteristics of energy using systems that affect energy consumption, not being energy savings

Note 1 to entry: The actual form of the structure effects differs for the various aggregation levels in calculations (country, sector, organization, building, etc.).

Note 2 to entry: For the indicator-based method, the effect of the driver on energy consumption is, by definition, not part of the structure effect.

Note 3 to entry: For the measure-based method, the demarcation between structure effect and savings can be dependent on formulating policy as savings measure or another measure (e.g. speed limits for traffic to avoid accidents or to save petrol).

2.38

system boundary

physical or site limits as defined for a stated purpose

Note 1 to entry: The stated purpose could be for a management system, or for a savings program with a given national, regional, or local scope.

[SOURCE:ISO/IEC 13273‑1, 3.3.2, modified — example with extended scope, notes adapted.]

2.39

technical interaction

relation of the elementary unit of action to the surrounding technical system, or to other elementary units of action, which influences the unitary energy savings

Note 1 to entry: In case of technical interaction between two elementary units of action, both energy savings cannot be simply summed up.

2.40

unitary energy savings

calculated energy savings per elementary unit of action

Note 1 to entry: Also called “unitary gross annual energy savings”. Gross depicts that corrections can be made.