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ITU-T Recommendations

Green ICT Standards and Supplements


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Rec. No.TitleSummaryStatusApproval Date
L.1024 Effect for global ICT of the potential of selling Services instead of Equipment on the waste creation and environmental impactsIt is expected that currently billions of new ICT goods - smartphones and others - are sold annually and even more are expected in 2025. Business models based on servitization which would - most effectively - improve the circularity of these ICT goods are not well understood, e.g. prolonging the lifetime and/or the e-waste collection rate. The cases in the ICT ecosystem - for which the ICT goods - are better sold as services/subscriptions than products, are not clearly understood from an environmental point of view. This Recommendation utilises information compiled from stakeholders which can provide good insights into the specified potential challenge.Consented / Determinedna
L.1031 Guideline for achieving the e-waste targets of the Connect 2030 AgendaRecommendation ITU-T L.1031 describes a three-step approach to achieve the e-waste targets set in the Connect 2030 Agenda. These steps consist of guidance on developing an e-waste inventory, approaches to design e-waste prevention and reduction programmes and the supportive measures required for successfully implementing the Connect 2030 e-waste targets. This Recommendation is intended to be utilized by relevant stakeholders to take their first step in addressing Target 3.2 of the Connect 2030 Agenda that is to increase the global e-waste recycling rate to 30% and Target 3.3 that is to raise the percentage of countries with e-waste legislation to 50%. Consented / Determinedna
L.1304 Procurement Criteria for Sustainable Data CentresThis Recommendation aims to support public authorities in purchasing data centres related products, services and items with reduced environmental impacts through establishing a set of procurement criteria.Consented / Determinedna
Y.4903 Key performance indicators for smart sustainable cities to assess the achievement of sustainable development goalsRecommendation ITU-T Y.4903/L.1603 gives general guidance to cities and provides key performance indicators (KPIs) for smart sustainable cities (SSCs) to help cities achieve sustainable development goals (SDGs). This document provides the most effective means to benchmarking and disseminating best practices in utilizing ICTs and other technologies to enhance cities' sustainability and connect their smart strategies to the SDGs through an inclusive process. These KPIs are designed to evaluate the role and performance of Information Communication Technologies (ICTs) in the three key dimensions of a city: Economics, Environment, and Society and Culture. The Indicators are uniquely coordinated to allow cities to measure their progress on reaching the ambitious targets set by the SDGs. Consented / Determinedna
L Suppl. 38 Guidance to ICT manufacturers on setting 1.5°C aligned targets compliant with Recommendation ITU-T L.1470This Supplement supports information and communication technology (ICTs) organizations in setting science-based targets for greenhouse gases (GHGs) according to the decarbonisation pathways, described in detail in Recommendation ITU-T L.1470 'GHG emissions trajectories for the ICT sector compatible with the UNFCCC (United Nations Framework Convention on Climate Change) Paris Agreement', aligned to the IPCC Special Report on 1.5°C and is intended to be provided to Science Based Targets Initiative (SBTi) to be used as a sectoral target-setting approach. This Supplement focuses exclusively on ICT manufacturers. Guidance for additional sub-sectors, including such as semi-conductor manufacturers and PCB manufacturers, will be covered in future work. Note: The term ICT manufacturers refers to organisations which have the financial and organisational control of the design and production of ICT goods, also including software providers. Approved2020-10-23
L.1023 Assessment method for circular scoringRecommendation ITU-T L.1023 outlines an assessment method for circularity scoring of information and communication technology (ICT) goods. The assessment method consists of three steps: 1) Setting the relevance and applicability (R) of each criterion for circular product design (CCPD) for the ICT goods at hand, 2) Assess the margin of improvement (MI) of each criterion, 3) Calculate the circularity score (score) from 0 to 100% for the ICT good at hand for all three circular design guideline groups (CDGGs). This includes: – Using a predefined value matrix to identify the % score from 0 to 100 for each combination of R×MI. – Average the included criteria for the ICT good at hand separately for all three groups: product durability, ability to recycle, repair, reuse, and upgrade from equipment and manufacturer level.Approved2020-09-22
L.1310 Energy efficiency metrics and measurement methods for telecommunication equipmentRecommendation ITU-T L.1310 contains the definition of energy efficiency/performance metrics test procedures, methodologies and measurement profiles required to assess the energy efficiency/performance of telecommunication equipment. Energy efficiency/performance metrics and measurement methods are defined for telecommunication network equipment and small networking equipment. These metrics allow for the comparison of equipment within the same class, e.g., equipment using the same technologies. The comparison of equipment in different classes is out of the scope of this Recommendation.Approved2020-09-22
L.1331 Assessment of mobile network energy efficiencyRecommendation ITU-T L.1331 aims to provide a better understanding of the energy efficiency of mobile networks. The focus of this Recommendation is on the metrics and methods of assessing energy efficiency in operational networks. The networks considered are those whose size and scale could be defined by topologic, geographic or demographic boundaries. This Recommendation explains how to extrapolate the measurements made on partial networks to the level of the total network. Such a simplified approach is proposed as a way of making approximate energy efficiency evaluations at the level of network elements, and cannot therefore be considered sufficient for the entire network operation including, for example, transport. Approved2020-09-22
L.1371 A methodology for assessing and scoring the sustainability performance of office buildingsRecommendation ITU-T L.1371 provides a consistent framework for building owners, managers and operators to critically assess, score and improve the sustainability performance of office buildings in 10 key areas: energy; water; air; comfort; health and wellness; purchasing; custodial; waste; site; and stakeholders. The framework described in Recommendation ITU-T L.1371 provides a set of concrete and measurable steps to reduce environmental impacts, and specifically greenhouse gas emissions, of existing office buildings, thus contributing to the achievement of Sustainable Development Goal 11 "Sustainable cities and communities –s Make cities inclusive, safe, resilient and sustainable". The annex to Recommendation ITU-T L.1371 specifies an assessment scoring methodology to allow owners and managers to undertake a self-assessment to evaluate their building's current status and track progress going forward.Approved2020-06-29
L.1381 Smart energy solutions for data centresRecommendation ITU-T L.1381 considers a smart control strategy for the entire energy system, including power-feeding and cooling solutions, of data centres to achieve higher energy efficiency and to decrease overall energy consumption. Firstly, for a multiple energy input system, including photovoltaic (PV) solar panels, wind, fuel cells, the electrical grid, power generators and batteries, can be connected to a system. Recommendation ITU-T L.1381 considers how to control these different energy inputs in a smart way to increase energy efficiency and to decrease carbon emissions. In addition, for smart cooling systems, Recommendation ITU-T L.1381 considers how to use outside cool air and maximize utilization of information and communication technology (ICT) side cooling, e.g., ICT rack cooling, row cooling methods and liquid cooling. Recommendation ITU-T L.1381 focuses on smart energy solutions for data centres to achieve green and sustainable goals, including those which are environmentally friendly, decrease carbon emissions, increase energy efficiency and extend product life.Approved2020-06-29
L.1382 Smart energy solutions for telecommunication roomsRecommendation ITU-T L.1382 specifies requirements for the power supply mode of the three-layer architecture of telecommunication rooms. Recommendation ITU-T L.1382 aims to drive future-oriented network deployment for the information and communication technology (ICT) industry, as well as maximizing energy efficiency, the use of renewable resources and social resources in the digital era, and reduce energy and resource consumption. while ensuring network performance and user experience. Innovative ICTs are used to promote network energy saving, emission reduction and circular economy development, as well as continuously driving all parties in the industry chain to jointly build green networks and low-carbon societies. In addition, Recommendation ITU-T L.1382 provides suggestions and requirements on the deployment of three types of telecommunication rooms, which can be used as a reference for operators to build the target network evolution strategies for telecommunication room power supply. Recommendation ITU-T L.1382 accelerates network deployment, reduces capital expenditure (CAPEX) and operating expenditure (OPEX), optimizes investment efficiency, and guides ICT industry transformation and optimization. The new networking architecture, new power supply technologies and specifications in Recommendation ITU-T L.1382 will also effectively promote the upgrade of industry technologies.Approved2020-06-29
L Suppl. 37 Guidance to operators of mobile networks, fixed networks and data centres on setting 1.5°C aligned targets compliant with Recommendation ITU-T L.1470Supplement 37 to ITU-T L-series Recommendations supports information and communication technology (ICT) organizations in setting science-based targets for greenhouse gases (GHGs) according to the decarbonisation pathways, described in detail in ITU-T L.1470 aligned to the IPCC Special Report on 1.5°C and developed to be used as a sectoral target-setting approach by the Science Based Targets Initiative (SBTi). This Supplement focuses exclusively on ICT organizations operating mobile networks, fixed networks and/or data centres. Guidance for further ICT sub-sectors will be covered separately. Approved2020-05-20
L.1470 Greenhouse gas emissions trajectories for the information and communication technology sector compatible with the UNFCCC Paris AgreementRecommendation ITU-T L.1470 provides detailed trajectories of greenhouse gas (GHG) emissions for the global information and communication technology (ICT) sector and sub-sectors that are quantified for the year 2015 and estimated for 2020, 2025 and 2030. In addition, Recommendation ITU-T L.1470 establishes a long-term ambition for 2050. The trajectories, the long-term ambition and the 2015 baseline have been derived in accordance with Recommendation ITU-T L.1450 and through complementary methods in support of the 1.5°C objective described by the IPCC in its Special report: Global warming of 1.5°C and in support of the Science-based Targets (SBT) initiative.Approved2020-01-12
L.1210 Sustainable power-feeding solutions for 5G networksRecommendation ITU-T L.1210 defines power-feeding solutions for 5G, converged wireless and wireline access equipment and networks, taking into consideration their enhanced requirements on service availability and reliability and new deployment scenarios, along with the environmental impact of the proposed solutions. The minimum requirements of different solutions, including power-feeding structures, components, backup, safety requirements and environmental conditions, are also defined. This Recommendation is applicable to the powering of both mobile and fixed access network elements, in particular equipment that have similar configurations and needs. Approved2019-12-22
L.1305 Data centre infrastructure management system based on big data and artificial intelligence technologyRecommendation ITU-T L.1305 contains technical specifications of a data centre infrastructure management (DCIM) system, with the following aspects being covered: principles, management objects, management system schemes, data collection function requirements, operational function requirements, energy saving management, capacity management for information and communication technology (ICT) and facilities, other operational function requirements and intelligent controlling on systems to maximize green energy use. Other aspects such as maintenance function requirements, early alarm and protection based on big data analysis and intelligent controlling on systems to decrease the cost for maintenance are also considered.Approved2019-11-13
L.1316 Energy efficiency frameworkRecommendation ITU-T L.1316 contains a framework of documents for collecting standards on energy efficiency metrics/key performance indicators (KPIs), measurement methodologies and energy management solutions for information and communication technology (ICT) equipment. The Recommendation suggests the selection of the appropriate document to reference when determining energy efficiency.Approved2019-11-13
L.1380 Smart energy solution for telecom sitesRecommendation ITU-T L.1380 focuses on smart energy solutions for telecom sites, mainly on the performance, safety, energy efficiency and environmental impact, when the system is fed by various types of energy such as photovoltaic (PV) energy, wind energy, fuel cells and the grid. The Recommendation also considers smart energy control. For example, if the grid is off, how can the energy flows be managed to achieve higher energy efficiency, how to get green energy, etc.Approved2019-11-13
L.1451 Methodology for assessing the aggregated positive sector-level impacts of ICT in other sectorsTo date no international comprehensive methodology exists to assess the environmental impact of information and communication technology (ICT) at sector level, or to assess the aggregated positive effects of the ICT sector on other sectors of the economy. Without a standard methodology evaluating the positive impacts of ICT, the role of ICTs in the fight against global warming will be only partially perceived. Recommendation ITU-T L.1451 addresses the need to contribute to achieve the targets and goals of the 2030 Agenda for Sustainable Development, especially its Sustainable Development Goal 13 (SDG13), the Connect 2030 Agenda and the Paris Agreement from a global perspective. This Recommendation addresses the opportunity to use a computable general equilibrium (CGE) model as a possible methodology for simultaneously assessing the environmental and economic impacts of ICTs at the sectoral level.Approved2019-11-13
L.1022 Circular economy: Definitions and concepts for material efficiency for information and communication technologyRecommendation ITU-T L.1022 contains a guide to the circular economy (CE) aspects, parameters, metrics and indicators for information and communication technology (ICT) based on current approaches, concepts and metrics of the CE as defined in existing standards, while considering their applicability for ICT. In this Recommendation ICT is defined based on the definition given by the Organisation for Economic Co-operation and Development (OECD) (See [b-ISIC] in the Bibliography). This Recommendation discusses the special considerations and challenges in a broader and more in-depth context for all ICT defining parameters, metrics and indicators with the intention to guide the vertical standardization of material efficiency for ICT. The guidelines aim to examine the kinds of standards that are available and to assess their relevance for ICT product groups citing examples of interrelated relevance throughout the text of the Recommendation.Approved2019-10-22
L.1032 Guidelines and certification schemes for e-waste recyclersRecommendation ITU-T L.1032 is part of a series of ITU-T Recommendations that considers requirements for recyclers of waste information and communication technology (ICT). This Recommendation addresses, in particular, the informal sector that is involved in waste electrical and electronic equipment (WEEE) collection and dismantling. This Recommendations must be read in conjunction with national legislation and technical requirements for WEEE recyclers at the national level. A number of standards on WEEE, related to the present series of Recommendations, are published on the ITU-T website at: https://www.itu.int/en/ITU-T/Pages/default.aspx . Updates on the regional and international conventions and legislation presented can be found at: www.Basel.int (for the Basel Convention), also at: http://ec.europa.eu/environment/waste/shipments/legis.htm (for the EU waste shipment regulations), and at: http://ec.europa.eu/environment/waste/weee/index_en.htm (for the EU WEEE directive). In addition, there are a number of mandatory and voluntary standards on the treatment conditions for workers and the environment that can be used as guidelines to improve national legislation and the quality of recycling where such standards are yet to be implemented.Approved2019-08-13
L.1362 Interface for power management in network function virtualization environments – Green abstraction Layer version 2Recommendation ITU-T L.1362 specifies a data model for energy discrete states within virtualized networks, and operations to interact on this model. In virtualized networks, establishing a mapping between the energy discrete states of logical entities (e.g., virtualized network functions) and the energy consumption of the hardware hosting the virtual machines that execute these logical entities is a challenging task. Recommendation ITU-T L.1362 adapts the green abstraction layer specification (GALv1) to virtualized networks.Approved2019-08-13
L.1000 Universal power adapter and charger solution for mobile terminals and other hand-held ICT devicesRecommendation ITU-T L.1000 provides high level requirements for a universal power adapter and charger solution that will reduce the number of power adapters and chargers produced and recycled by widening their application to more devices and increasing their lifetime. The solution also aims to reduce energy consumption. The longer life cycle and possibility of avoiding device duplication reduces the demand on raw materials and waste. The universal power adapter and charger solution is designed to serve the vast majority of mobile terminals and other ICT devices.Approved2019-07-14
L.1507 Use of ICTsites to support environmental sensingMitigating and adapting to climate change are global issues and developing solutions to enable effective adaptation and early warning becomes important. One of the key aspects for developing the innovative solutions is the availability of highly stable environmental monitoring data. The meteorological organizations work on realizing the stable and fine grained collection of the global environmental conditions. To achieve the goal, it is necessary to deploy a large number of environmental sensing stations, which requires large amount of efforts. ICT sites are good candidates to resolve such an issue due to their global distribution, reliable power, network communications, and maintenance, and availability of poles and towers to host various environmental sensors. This Recommendation presents a set of rules for installing the environmental sensing system on ICT sites in order to utilize the ICT sites as environmental sensing stations.Approved2019-07-14
L.1015 Criteria for evaluation of the environmental impact of mobile phonesRecommendation ITU-T L.1015 focuses on the criteria to be used for evaluation of the environmental impact of mobile phones. It considers all life cycle stages of mobile phones such as the design, production, use and end-of-life management. The Recommendation also defines a minimum level of environmental performance. Within the constraints of technology and affordability, sustainability should be considered for: materials; energy use; durability, upgrade and repair operations; end of life management; packaging, corporate practice; manufacturing and operations.Approved2019-05-22
L.1031 Guideline on implementing the e-waste reduction target of the Connect 2020 AgendaRecommendation ITU-T L.1031 describes a three-step approach to address the e-waste reduction target of the Connect 2020 Agenda. These steps consist of guidance on developing an e-waste inventory, approaches to design e-waste prevention and reduction programs, and the supportive measures required for successfully implementing the Connect 2020 e-waste target. This Recommendation is intended to be utilized by relevant stakeholders to take their first step in addressing Target 3.2 of the Connect 2020 Agenda that is to reduce waste by 50% by 2020. Approved2018-11-13