SIST EN 305 200-1 V1.1.1:2018

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Access, Terminals, Transmission and Multiplexing (ATTM) - Energy management - Operational infrastructures - Global KPIs - Part 1: General requirements35.020Informacijska tehnika in tehnologija na splošnoInformation technology (IT) in general27.015VSORãQREnergy efficiency. Energy conservation in generalICS:Ta slovenski standard je istoveten z:ETSI EN 305 200-1 V1.1.1 (2018-07)SIST EN 305 200-1 V1.1.1:2018en01-september-2018SIST EN 305 200-1 V1.1.1:2018SLOVENSKI

ETSI EN 305 200-1 V1.1.1 (2018-07) Access, Terminals, Transmission and Multiplexing (ATTM); Energy management; Operational infrastructures; Global KPIs; Part 1: General requirements

Reference DEN/ATTM-003 Keywords broadband, energy management, ICT, sustainability ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE

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ETSI ETSI EN 305 200-1 V1.1.1 (2018-07) 3Contents Intellectual Property Rights ................................................................................................................................ 5 Foreword ............................................................................................................................................................. 5 Modal verbs terminology .................................................................................................................................... 6 Introduction ........................................................................................................................................................ 6 1 Scope ........................................................................................................................................................ 7 2 References ................................................................................................................................................ 7 2.1 Normative references ......................................................................................................................................... 7 2.2 Informative references ........................................................................................................................................ 8 3 Definitions, symbols and abbreviations ................................................................................................... 8 3.1 Definitions .......................................................................................................................................................... 8 3.2 Symbols .............................................................................................................................................................. 9 3.3 Abbreviations ................................................................................................................................................... 10 4 Context for Key Performance Indicators (KPI)...................................................................................... 10 4.1 Energy management and sustainability concepts ............................................................................................. 10 4.2 Differentiation of Key Performance Indicators ................................................................................................ 10 4.2.1 General ........................................................................................................................................................ 10 4.2.2 Technical KPIs ............................................................................................................................................ 11 4.2.3 Objective KPIs ............................................................................................................................................ 12 4.2.3.1 General .................................................................................................................................................. 12 4.2.3.2 Energy consumption within ETSI EN 305 200 series ........................................................................... 12 4.2.3.3 Task effectiveness within ETSI EN 305 200 series .............................................................................. 12 4.2.3.4 Energy re-use within ETSI EN 305 200 series ...................................................................................... 13 4.2.3.5 Renewable energy within ETSI EN 305 200 series .............................................................................. 13 4.2.4 Global KPIs ................................................................................................................................................ 13 4.2.4.1 General .................................................................................................................................................. 13 4.2.4.2 Global KPIs within ETSI EN 305 200 series ........................................................................................ 13 5 Requirements for Global and Objective KPIs ........................................................................................ 14 5.1 General ............................................................................................................................................................. 14 5.2 Scale ................................................................................................................................................................. 14 5.3 Utilization and evolution .................................................................................................................................. 15 5.4 Definition of boundaries ................................................................................................................................... 15 5.5 Formulae........................................................................................................................................................... 15 5.5.1 General ........................................................................................................................................................ 15 5.5.2 Definition of terms ...................................................................................................................................... 15 5.5.3 Clarity ......................................................................................................................................................... 15 5.5.4 Criteria ........................................................................................................................................................ 15 5.6 Measurement points and procedures ................................................................................................................ 15 5.6.1 Overview .................................................................................................................................................... 15 5.6.2 Detailed treatment ....................................................................................................................................... 16 5.7 Classifications .................................................................................................................................................. 17 5.8 Reporting .......................................................................................................................................................... 17 6 The use of KPIs ...................................................................................................................................... 17 History .............................................................................................................................................................. 19

ETSI ETSI EN 305 200-1 V1.1.1 (2018-07) 4List of figures Figure 1: The relationship of energy related Technical, Objective and Global KPIs ........................................................11 Figure 2: Schematic of the foundations of any Global KPI for energy management ........................................................14 Figure 3: Schematic of combinations of Objective KPIs within a Global KPI for energy management ...........................14 Figure 4: Schematic showing application of TKPI , TREPEAT and Δt ....................................................................................16 Figure 5: Mathematical treatment of assessment timing ...................................................................................................17

ETSI ETSI EN 305 200-1 V1.1.1 (2018-07) 5Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https://ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This European Standard (EN) has been produced by ETSI Technical Committee Access, Terminals, Transmission and Multiplexing (ATTM). The present document is part 1 of a multi-part deliverable covering Global Key Performance Indicators for energy management of operational broadband deployment infrastructures, as identified below: Part 1: "General requirements"; Part 2: "Specific requirements"; Part 3: "ICT Sites"; Part 4: "Design assessments".

National transposition dates Date of adoption of this EN: 4 July 2018 Date of latest announcement of this EN (doa): 31 October 2018 Date of latest publication of new National Standard or endorsement of this EN (dop/e):

30 April 2019 Date of withdrawal of any conflicting National Standard (dow): 30 April 2019

ETSI ETSI EN 305 200-1 V1.1.1 (2018-07) 6Modal verbs terminology In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and "cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). "must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation. Introduction Energy costs continue to rise, a trend that will continue in the future, while broadband penetration is introducing new active equipment to the network architecture. In this context, and to reflect other environmental aspects of sustainability, it is vital that the main telecommunication operators implement effective general engineering of fixed and mobile broadband networks and sites provisioning, managing or using those networks (i.e. ICT sites) in order to respond to critical issues of energy consumption while proposing essential solutions to broadband deployment. To guide this process, it is essential that metrics are defined, termed Global Key Performance Indicators (KPIs), that enable energy usage to be managed more effectively. The Global Key Performance Indicators specified in the standards in the ETSI EN 305 200 series [i.2] address operational infrastructures and do not consider design or operation of individual components comprising those infrastructures. The ETSI EN 305 200 [i.2] multi-part deliverable comprises: • The present document: a generic requirements document addressing Global KPIs for operational infrastructures. • A sub-series ETSI EN 305 200-2 that defines the Global KPIs, and drives energy management targets, for specific operational networks and sites and which describes how the Global KPIs are to be applied (which may be used to support future regulatory objectives): - ETSI EN 305 200-2-1 [i.3]: "ICT sites"; - ETSI EN 305 200-2-2 [i.4]: "Fixed broadband access networks"; NOTE: Excluding cable access networks. - ETSI EN 305 200-2-3 [i.5]: "Mobile broadband access networks". The standards do not define weightings of Objective KPIs or targets or limits for Global KPIs but may contain information on values that have been used by certain organizations. • A sub-series ETSI EN 305 200-3 including ETSI EN 305 200-3-1 [i.6] that defines particular implementations of Global KPIs within ICT sites based on the requirements of ETSI EN 305 200-2-1 [i.3], and which may define levels of performance to simplify and provide clearer understanding of Global KPIs allowing the evaluation of performance of energy use management in ICT sites. The standards do not define weightings of Objective KPIs or targets or limits for Global KPIs but may contain information on values that have been used by certain organizations. • A sub-series ETSI EN 305 200-4 including ETSI EN 305 200-4-4 [i.7] that defines design assessments of Global KPIs, and drives energy management targets, for specific operational networks and sites and which describes how the Global KPIs are to be applied (which may be used to support future regulatory objectives). These standards may be considered to be a contribution to the application of ISO 50001 [i.8] in relation to the development of policy for the continuous improvement of energy management and will accelerate: • the availability of operational infrastructure architectures and network implementations that use energy more efficiently; • the definition and attainment objectives for other environmental aspects of sustainability for operational broadband networks. SIST EN 305 200-1 V1.1.1:2018

ETSI ETSI EN 305 200-1 V1.1.1 (2018-07) 71 Scope The present document describes the energy management landscape of the operational infrastructures of broadband deployment addressed by this multi-part deliverable, their inter-relationship and boundaries. It specifies the following aspects for Global Key Performance Indicators in relation to energy management for the operational infrastructures of broadband deployment: • common objectives in relation to energy consumption: - energy consumption; - task effectiveness; - energy re-use; - renewable energy; • general requirements for all KPIs specified in the other standards in the ETSI EN 305 200 series [i.2] in relation to: - infrastructure scalability; - infrastructure evolution; - formulae and definition of terms; - measurement points and procedures; • the use of KPIs. The environmental impact and management of different energy sources are outside the scope of the present document. Within the present document: • clause 4 explains the context underlying the need for the development of Global KPIs for energy efficiency and introduces the Objective KPIs upon which the Global KPIs are founded; • clause 5 specifies the general requirements that are applied to all KPIs defined within the standards in the ETSI EN 305 200-2 series and ETSI EN 305 200-3 series; • clause 6 summarizes the applicability of the Global and Objective KPIs defined within the standards in the ETSI EN 305 200-2 series and ETSI EN 305 200-3 series. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at https://docbox.etsi.org/Reference/. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. Not applicable. SIST EN 305 200-1 V1.1.1:2018

ETSI ETSI EN 305 200-1 V1.1.1 (2018-07) 82.2 Informative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. [i.1] Directive 2010/31/EU of the European Parliament and of the Council of 19 May 2010 on the energy performance of buildings. [i.2] ETSI EN 305 200 series: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy management; Operational infrastructures; Global KPIs". [i.3] ETSI EN 305 200-2-1: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;

Sub-part 1: ICT Sites". [i.4] ETSI EN 305 200-2-2: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;

Sub-part 2: Fixed broadband access networks". [i.5] ETSI EN 305 200-2-3: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;

Sub-part 3: Mobile broadband access networks". [i.6] ETSI EN 305 200-3-1: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy management; Operational infrastructures; Global KPIs; Part 3: ICT sites; Sub-part 1: DCEM". [i.7] ETSI EN 305 200-4-4: "Integrated broadband cable telecommunication networks (CABLE); Energy management; Operational infrastructures; Global KPIs; Part 4: Design assessments; Sub-part 4: Cable access networks". [i.8] ISO 50001: "Energy management systems - Requirements with guidance for use". [i.9] ISO Guide 82: "Guide for addressing sustainability in standards". 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: access network: functional elements (that is equipment and infrastructure) that enable communication between an operator site (OS) and a customer network cable access network: access network provided by cable operators comprising optical fibre and metallic cabling providing direct connection to customer premises energy consumption: total consumption of energy by an operational infrastructure energy management: combination of reduced energy consumption and increased task effectiveness, re-use of energy and use of renewable energy energy re-use: transfer or conversion of energy (typically in the form of heat) produced by the operational infrastructure to do other work SIST EN 305 200-1 V1.1.1:2018

ETSI ETSI EN 305 200-1 V1.1.1 (2018-07) 9fixed (broadband) access network: access network provided by telecommunications operators comprising optical fibre and metallic cabling providing direct connection to customer premises global KPI: KPI, combining two or more Objective KPIs, which reflects the overall energy management performance of an operational infrastructure ICT equipment: equipment providing data storage, processing and transport services NOTE: A combination of Information Technology Equipment and Network Telecommunications Equipment. ICT equipment load: total requirement for power by a set of information technology equipment (ITE) and/or network telecommunications equipment (NTE) ICT site: site containing structures or group of structures dedicated to the accommodation, interconnection and operation of ICT equipment together with all the facilities and infrastructures for power distribution and environmental control together with the necessary levels of resilience and security required to provide the desired service availability Information Technology Equipment (ITE): equipment providing data storage, processing and transport services for subsequent distribution by network telecommunications equipment (NTE) mobile access network: telecommunications network in which the access to the network (connection between user equipment and network) is implemented over the air interface Network Telecommunications Equipment (NTE): equipment between the boundaries of, and dedicated to providing connection to, core and/or access networks objective KPI: KPI assessing one of the objectives of operational energy performance which is subsequently used to define a Global KPI for energy management operational infrastructure: combination of ICT equipment together with the power supply and environmental control systems necessary to ensure provision of service renewable energy: energy produced from dedicated generation systems using resources that are naturally replenished and for which the energy required for production does not exceed 10 % of the energy produced NOTE: Directive 2010/31/EU [i.1] defines "energy from renewable sources" as energy from renewable non-fossil sources, namely wind, solar, aerothermal, geothermal, hydrothermal and ocean energy, hydropower, biomass, landfill gas, sewage treatment plant gas and biogases. task effectiveness: measure of the work done (as a result of design and/or operational procedures) for a given amount of energy consumed 3.2 Symbols For the purposes of the present document, the following symbols apply: Δt the maximum time variation between measurement points of the different Objective KPIs within a given Global KPI k

the time between which the Objective and Global KPIs are assessed to determine relevant trend information WEC

ETSI ETSI EN 305 200-1 V1.1.1 (2018-07) 103.3 Abbreviations For the purposes of the present document, the following abbreviations apply: DCEM Data processing and Communications Energy Management ICT Information and Communications Technology ISO International Organization for Standardization ITE Information Technology Equipment KPI Key Performance Indicator

NTE Network Telecommunications Equipment 4 Context for Key Performance Indicators (KPI) 4.1 Energy management and sustainability concepts ISO Guide 82 [i.9], entitled "Guide for addressing sustainability in standards", defines sustainability as "state of the global system, which includes environmental, social and economic subsystems, in which the needs of the present are met without compromising the ability of future generations to meet their own needs". The standards in the ETSI EN 305 200 series [i.2] do not specifically address any social and economic aspects of sustainability but do focus on the environmental issues in relation to the operational performance of infrastructures of deployed broadband. The standards in the ETSI EN 305 200 series [i.2] adopt the position that the environmental viability aspects of sustainability addressing those elements that relate directly to energy consumption and its outcomes within the locale of the broadband deployment infrastructures are within scope. Other aspects such as environmental elements relating to the wider impact of power generation (e.g. greenhouse gas, carbon), consumption of other resources (e.g. water), and issues such as life cycle assessment are out of scope. While it is self-evident that if less energy is consumed by an operational infrastructure then the environmental impact of that infrastructure will be reduced, it is equally important to consider: • the task effectiveness of the operation for which that energy is consumed; • while not wishing to encourage poor task effectiveness, some benefit can be seen if waste energy, typically in the form of heat, is re-used. This may substitute for, to some degree, energy from other sources. Energy consumption, task effectiveness, re-use of waste heat and the contribution of locally generated energy from renewable sources are considered to work in concert, albeit to different degrees for different infrastructures. In the ETSI EN 305 200 series [i.2], these four aspects are considered and specified as Objective KPIs from which Global KPIs are produced (see clause 4.2) which reflect energy management of operational systems - meeting the needs of operators and legislators alike. The imperatives placed on the different elements may vary from time to time - regulators specifically encouraging local generation of energy from renewable sources but then shifting focus on to other areas. 4.2 Differentiation of Key Performance Indicators 4.2.1 General It is common for equipment suppliers to define the energy efficiency of their products in terms of either: • the energy consumed to perform specific tasks; or • task performance improvements for a given energy consumption. Within the ETSI EN 305 200 series [i.2], these are considered, separately, as improvements in "energy consumption" and "task effectiveness" respectively. SIST EN 305 200-1 V1.1.1:2018

ETSI ETSI EN 305 200-1 V1.1.1 (2018-07) 11By comparison, operators and legislators are more interested in the performance of complete systems at an operational level taking into account global management aspects. As a result they apply a wider view of energy management that combines energy consumption and task effectiveness with more general objectives. Against this background, the standards in the ETSI EN 305 200 series [i.2] recognize and differentiate between three types of energy-related KPIs as shown schematically in Figure 1. Operational Global and Objective KPIs are fundamentally different to the Technical KPIs applied to products and systems at the design and engineering stages. The former are used to monitor and drive user behaviour whereas the latter are substantial indications of potential operational performance. It is therefore important to support, but differentiate, the role of the Technical KPIs from the Objective and Global operational KPIs.

Figure 1: The relationship of energy related Technical, Objective and Global KPIs Technical KPIs relate to the design and engineering phase for the components, sub-assemblies, products and systems to be employed in the infrastructures of broadband deployment. They are measured under specific operating conditions and provide indications of potential performance in an operational infrastructure. These are not addressed by the ETSI EN 305 200 series [i.2]. The left-hand side of Figure 1 relates to the Technical KPIs of the design and engineering phase for components, sub-assemblies, products and