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ITU-T Recommendations

Green ICT Standards and Supplements


Rec. No.TitleSummaryStatusApproval Date
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.Approved2011-06-13
L.1001 External universal power adapter solutions for stationary information and communication technology devicesRecommendation ITU-T L.1001 provides requirements for a universal power adapter solution (UPA) for stationary information and communication technology (ICT) devices that will reduce the number of power adapters that are produced by widening their application by more devices, thus enabling their reuse and increasing their life expectancy. The solution also aims to reduce energy consumption. The longer the life cycle and possibility of avoiding device duplication reduces the demand on raw materials and limits the amount of e-waste. The universal power adapter solution for stationary ICT equipment is designed to serve the vast majority of ICT devices. Approved2012-11-29
L.1002 External universal power adapter solutions for portable information and communication technology devicesThis Recommendation defines the requirements for a universal power adapter solution (UPA) designed for portable ICT devices. It is complementary to [ITU-T L.1000] and [ITU-T L.1001] and aims to cover the widest possible range of ICT devices for portable use within the defined voltage and power ranges. It firstly describes the UPA basic configuration, consisting of a power adapter block with a detachable input cable and a detachable output cable to the ICT device. Then, different general requirements for the UPA and their interfaces, including cables, connectors, voltage, current, ripple noise, energy efficiency, no load power, safety, electromagnetic compatibility, resistibility and eco-environmental specifications are defined. All the requirements have been set with the aim to reduce the e-waste and increase the usability. This Recommendation intends to complement and to make use, as far as possible, of what defined in IEC/Technical Specification 62700/Ed1.Consented / DeterminedNot yet approved
L.1005 Test suites for assessment of the universal charger solutionRecommendation ITU-T L.1005 considers the creation of specific test suites to assess certain functional aspects of the: energy efficiency, interworking, safety and electromagnetic compatibility (EMC) of the universal charger solution (UCS). Such testing is required to guarantee a minimum quality level of the UCS in conformance with the target basic configuration of the UCS and charger described in Recommendation ITU-T L.1000.Approved2014-02-13
L.1010 Green battery solutions for mobile phones and other hand-held information and communication technology devicesRecommendation ITU-T L.1010 defines a minimum set of parameters necessary to identify green battery solutions that should be considered by developers/manufacturers to reduce the future environmental impact of battery use. The provision of so-called green batteries is to extend the lifetime of handsets, reduce global resources consumption and preserve the environment. The compliance in terms of supporting green information and communication technology (ICT) efforts will be considered including the use of scarce resources, recycling and reuse. The existing environmental schemes available in different regions and international standards will be considered.Approved2014-02-13
L.1100 Procedure for recycling rare metals in information and communication technology goodsRecommendation ITU-T L.1100 provides information on the recycling procedures of rare metals in information and communication technology (ICT) goods. It also defines a communication format for providing recycling information of rare metals contained in ICT goods.Approved2012-02-22
L.1101 Measurement methods to characterize rare metals in information and communication technology goodsInformation and communication technology (ICT) goods, which consist of many parts and modules, are comprised of relatively small quantities of rare metals and larger quantities of major materials (e.g., iron, nonferrous metals, plastics, glasses, and engineering ceramics). They are usually produced through complex production procedures. To achieve successful recycling systems, the rare metals information provided by manufacturers should be accurate. However, many measurement and characterization methods may be used to obtain information on rare metals for elements of ICT goods. Each method has its own intrinsic advantages and disadvantages in the analysis of the information of such elements. The element separation capabilities and quantitative resolutions differ according to the measurement methods used and there are no standardized measurement methods to define the quantities and qualities of rare metals. However, IEC 62321 provides some guidelines for X-ray fluorescence (XRF) and inductively coupled plasma mass spectrometry (ICP-MS) measurement methods to perform qualitative and quantitative analysis of unknown samples and harmful materials. Based on the guidelines of IEC 62321, Recommendation ITU-T L.1101 provides reference characterization procedures for efficient recycling of rare metals by using XRF and ICP-MS measurement methods.Approved2014-03-22
L.1200 Direct current power feeding interface up to 400 V at the input to telecommunication and ICT equipmentRecommendation ITU-T L.1200 specifies the direct current (DC) interface between the power feeding system and ICT equipment connected to it. It also describes normal and abnormal voltage ranges, and immunity test levels for ICT equipment to maintain the stability of telecommunication and data communication services. The specified interface is operated from a DC power source of up to 400 V to allow increased power consumption and equipment power density, in order to obtain higher energy efficiency and reliability with less material usage than using a lower voltage such as -48 VDC or AC UPS power feeding solutions.Approved2012-05-29
L.1201 Architecture of power feeding systems of up to 400 VDCRecommendation ITU-T L.1201 describes the architecture of power feeding systems of up to 400 VDC for information and communication technology (ICT) equipment in telecommunication centres, data centres and customer premises. It describes aspects such as configuration, redundancy, power distribution and monitoring, in order to construct safe, reliable and manageable power feeding systems. It can be used also as an architecture reference model for further Recommendations e.g., on the performance of DC power feeding systems.Approved2014-03-01
L.1300 Best practices for green data centresRecommendation ITU-T L.1300 describes best practices aimed at reducing the negative impact of data centres on the climate. It is commonly recognized that data centres will have an ever-increasing impact on the environment in the future. The application of the best practices defined in this Recommendation can help owners and managers to build future data centres, or improve existing ones, to operate in an environmentally responsible manner. Such considerations will strongly contribute to a reduction in the impact of the information and communication technology (ICT) sector on climate change.Approved2014-06-29
L.1310 Energy efficiency metrics and measurement methods for telecommunication equipmentRecommendation ITU-T L.1310 contains the definition of energy efficiency metrics test procedures, methodologies and measurement profiles required to assess the energy efficiency of telecommunication equipment. Energy efficiency 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.Approved2014-08-22
L.1320 Energy efficiency metrics and measurement for power and cooling equipment for telecommunications and data centresRecommendation ITU-T L.1320 contains the general definition of metrics, test procedures, methodologies and measurement profiles required to assess the energy efficiency of power and cooling equipment for telecommunications and data centres. More detailed measurement procedures and specifications can be developed in future related ITU-T Recommendations. Metrics and measurement methods are defined for power equipment, alternating current (AC) power feeding equipment (such as AC uninterruptible power supply (UPS), direct current (DC/AC) inverters), DC power feeding equipment (such as AC/DC rectifiers, DC/DC converters), solar equipment, wind turbine equipment and fuel cell equipment. In addition, metrics and measurement methods are defined for cooling equipment such as air conditioning equipment, outdoor air cooling equipment and heat exchanging cooling equipment.Approved2014-03-22
L.1340 Informative values on the energy efficiency of telecommunication equipmentRecommendation ITU-T L.1340 provides informative values on the energy efficiency of different types of telecommunication network equipment and small networking equipment in use in both the fixed and mobile networks. These values are related to energy efficiency metrics, test procedures, methodologies and measurement profiles that have been defined in Recommendation ITU-T L.1310. These informative values are intended to be a valued reference resource for those in the process of choosing the most energy-efficient technologies for network upgrade and deployment and, in so doing, reducing the carbon footprint of the Information and Communication Technology (ICT) sector.Approved2014-02-13
L.1400 Overview and general principles of methodologies for assessing the environmental impact of information and communication technologiesRecommendation ITU-T L.1400 presents the general principles on assessing the environmental impact of information and communication technologies (ICT) and outlines the different methodologies that are being developed: • Assessment of the environmental impact of ICT goods, networks, and services • Assessment of the environmental impact of ICT projects • Assessment of the environmental impact of ICT in organizations • Assessment of the environmental impact of ICT in cities • Assessment of the environmental impact of ICT in countries or group of countries. This Recommendation also provides some examples of opportunities to reduce the environmental load due to ICT.Approved2011-02-22
L.1410 Methodology for the assessment of the environmental impact of information and communication technology goods, networks and servicesRecommendation ITU-T L.1410 deals with the assessment of the environmental impact of information and communication technology (ICT) goods, networks and services. It is organized in two parts: Part I (clause 5) – ICT life cycle assessment: framework and guidance. Part II (clause 6) – Comparative analysis between ICT and a reference product system (baseline scenario); framework and guidance. Part I deals with the life cycle assessment (LCA) methodology applied to ICT goods, networks and services (ICT GNS). Part II deals with comparative analysis based on LCA results of an ICT GNS product system and a referenced product system. This Recommendation provides specific guidance on energy and greenhouse gas (GHG) impacts. Approved2012-03-08
L.1410 Methodology for Environmental Life Cycle Assessment (LCA) of information and communication (ICT) goods, networks and servicesRecommendation ITU-T L.1410 deals with the environmental Life Cycle Assessment (LCA) of information and communication (ICT) goods, networks and services. It is organized in two parts: o Part I "ICT life cycle assessment: Framework and Guidance". o Part II "Comparative analysis between ICT and reference product system (Baseline scenario); framework and guidance. Part I deals with the life cycle assessment (LCA) methodology applied to ICT goods, networks and services . Part II deals with comparative analysis based on LCA results of a ICT goods networks and services product system and a reference product system. Consented / DeterminedNot yet approved
L.1420 Methodology for energy consumption and greenhouse gas emissions impact assessment of information and communication technologies in organizationsRecommendation ITU-T L.1420 presents the methodology to be followed if an organization intends to claim compliance with this Recommendation when assessing its information and communication technology (ICT) related energy consumption and/or greenhouse gas (GHG) emissions. This Recommendation can be used to assess energy consumption and GHG emissions generated over a defined period of time for the following purposes: for assessment of related impact from ICT organizations or for assessment of impact from ICT related activities within non-ICT organizations.Approved2012-02-06
L.1430 Methodology for assessment of the environmental impact of information and communication technology greenhouse gas and energy projectsRecommendation ITU-T L.1430 is intended as a complement to ISO standard ISO 14064-2 and the Project Protocol of the Greenhouse Gas Protocol (GHG Protocol). This Recommendation provides guidance for the application of a specific methodology to assess the environmental impact of information and communication technology (ICT) greenhouse gas (GHG) and energy projects. This assessment methodology is specifically directed at quantifying and reporting GHG emission reductions, GHG removal enhancements, energy consumption reductions, and enhancement of energy generation and storage in ICT GHG and energy projects. An ICT GHG project uses mainly ICT goods, networks and services (GNS) and is designed to reduce GHG emissions or increase GHG removals that are quantified by comparison between the environmental impact of a project activity and a corresponding baseline scenario. An ICT energy project uses mainly ICT goods, networks and services to reduce energy consumption and improve energy efficiency. From the ICT perspective, this Recommendation takes into account considerations based on existing project quantification guidelines and aims at covering ICT GHG and energy project activities within both the ICT and the non-ICT sectors. This Recommendation recognizes the importance of project validation and verification for the credibility of project results but does not enforce the validation and verification procedures to be applied. It is expected that such procedures will be determined by the selected GHG programme, national regulations, the project proponent's internal policy or the intended user's request.Approved2013-12-13
L.1500 Framework for information and communication technologies and adaptation to the effects of climate changeRecommendation ITU-T L.1500 describes a framework for information and communication technologies (ICTs) and adaptation to the effects of climate change. This framework identifies and defines the basis for development of the following Recommendations: " Recommendation L.Adaptation_Countries on how ICTs can help countries to adapt to the effects of climate change. It will also provide a framework and a checklist for countries to integrate ICTs into their national strategies for adaptation to climate change. " Recommendation L.Infrastructure_Adaptation on adapting the ICT sector and its infrastructure to the effects of climate change. It will provide a set of guidelines, requirements and best practices to be referred to during operation, maintenance, upgrade and improvement of existing infrastructure and when planning, designing and constructing ICT projects, goods and services to adapt to the effects of climate change.Approved2014-06-22
L.1501 Best practices on how countries can utilize ICTs to adapt to the effects of climate changeThis Recommendation provides guidance on how ICTs can help countries to adapt to the effect of climate change. It also provides a framework and a checklist for countries to integrate ICTs in their national climate change adaptation strategies. This recommendation is part of L.1500 series recommendations on Adaptation to the effects of Climate Change. It is designed to assist countries in integrating ICTs into their national climate change adaptation strategies. This Recommendation describes the complexity of climate change and explains why countries need to adapt. It also describes the role of ICTs in helping countries respond to the effects of climate change by looking at how various sectors use ICTs; including the ICT sector. It is designed to be a guide for policy and regulation makers in developing policies and regulations regarding adaptation of nations or countries, management, and policies and regulations to climate changes and provides a 'multi-level framework for ICTs integration in climate change adaption' to assist countries in integrating ICTs in their national climate change adaptation strategies. Consented / DeterminedNot yet approved
L Suppl. 1 ITU-T L.1310 – Supplement on energy efficiency for telecommunication equipmentTelecommunication technologies play a large and increasing role in modern society; we depend increasingly on constant streams of information in our work and free time for data access and entertainment. Every day, more people access high speed networks via wired and wireless channels, and the amount of energy to deliver all those new services is also growing rapidly. Without an increase of energy efficiency, this would lead to a dramatic increase in energy use for all new services and customers. Scaling existing technological solutions is not enough. Not only do we need to implement changes in energy efficiency but we also have to implement them rapidly. This Supplement on energy efficiency for telecommunication equipment reviews the concepts for energy efficiency in application to networking devices; it presents a concept of place in a network as a base for classification, describes a process for creating a single metric for energy efficiency which reflects the qualities of equipment scalability with traffic levels and provides testing topologies and traffic pattern descriptions. Approved2013-02-07
L Suppl. 2 ITU-T L.1410 – Case studiesSupplement 2 to ITU-T L-series Recommendations has been developed to provide examples to assess the life cycle environmental impact of ICT goods, networks and services (GNS) based on Recommendation ITU-T L.1410. This Supplement focuses on illustrating the results of reduced greenhouse gas (GHG) emissions that have been achieved through increased efficiency in ICT services. These results represent a small number of the many examples that are expected to supplement Recommendation ITU-T L.1410 in the future. This Supplement is intended for implementers and organizations developing ICT services, and persons responsible for the deployment of sustainable ICT services, including office workers, policy makers and those in academia.Approved2013-12-13
L Suppl. 3 ITU-T L.1430 – Guidance on practical application of ITU-T L.1430 to a real-time navigation serviceThe Real Time Navigation Service (RNS) is composed of satellite navigation system based software which provides real-time information of the optimal route to the destination according to traffic conditions throughout the travel as well as the available parking spaces nearby. The transport sector is expected to save energy consumption by adopting RNS. Based on the experiences from a Korean study, this guidance will describe how to indirectly estimate energy consumption reduction and GHG abatement potential related to Real-time Navigation Service. Future revisions may look into direct estimation methods. This Supplement will be bounded to Recommendation ITU-T L.1430, but will give further guidance on boundary setting; GHG accounting and baseline scenario development; and on measurement, verification and monitoring methods from the ICT based RNS project perspective. Whereas ITU-T L.1430 focuses on the net environmental impact of ICT services from the whole life cycle perspective, this Supplement describes only the environmental impact of RNS during the use stage compared to one in baseline scenario.Approved2013-12-13