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| Rec. No. | Title | Summary | Status | Approval Date |
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L.1041
| Resource saving, e-waste reduction and energy saving system methodology using twisted single pair cable | This Recommendation proposes a new system that simultaneously provides power supply and communications using a single twisted pair cable. Traditionally, power and communications have been provided through separate cable systems. However, by twisting the power cable, this new approach enables both functions to be delivered through a single cable to all devices.
The new cable system offers multiple advantages including reduced cable resource usage, minimized waste generation and improved efficiency in installation and maintenance. It also promotes reuse and recycling of components, supports long-term utilization of cable systems, and ultimately contributes to conserving both resources and energy.
In addition, this cable system limits power supply to a maximum of 90 W per cable (DC 60 V / 1.5 A), which supports energy efficiency and the miniaturization and weight reduction of components and devices, while also enhancing electrical safety.
Furthermore, since power and communication can be provided simultaneously to all terminals, it enables energy consumption control through artificial intelligence (AI)-based power management. This contributes to building a new eco-system that supports the realization of a sustainable society. | Consented / Determined | na |
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L.1210
| Sustainable power-feeding solutions for 5G networks | Recommendation 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. | Consented / Determined | na |
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L.1211
| Smart controlling methods for photovoltaic system installed in base station site | This draft Recommendation establishes smart photovoltaic control methods for base station sites, mainly including DC power supply architecture, single module control technology, voltage tracking technology, photovoltaic fault diagnosis methods etc., to solve the common problems such as low conversion efficiency,the impact of shadow on power generation, time-varying power generation, reliable power supply and high maintenance costs of photovoltaic base station.
The Recommendation also considers benefits of PV base stations in energy saving and carbon reduction and typical practices. | Consented / Determined | na |
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L.1308
| Guidelines for the implementation of low-carbon data centres to climate change mitigation and adaptation | Low-carbon data centres can effectively reduce energy consumption, reduce dependence on fossil energy, promote sustainable energy use, and reduce carbon emissions, which contribute to the global response to climate change, and reduce the negative impact on the environment. Low-carbon data centres can reduce operating costs, enhance the competitiveness of enterprises, and promote the data centre industry to be green and efficient.
This Recommendation identifies the guidelines for implementation of low carbon data centres in its whole life cycle to climate change mitigation and adaptation, including:
(1) Site selection stage: choose a suitable construction site, including abundance of renewable resources, suitability of the natural environment, sufficient natural energy sources, accessibility to transport;
(2) Design stage: including guidelines on architecture and environment, clean energy supply, cooling, power equipment, IT equipment, water sources;
(3) Procurement stage: including guidelines on building materials, electrical and mechanical equipment;
(4) Construction stage: including guidelines on environment on-site, construction vehicles and equipment,etc.;
(5) Operational stage: including guidelines on renewable energy usage, monitoring, intelligent management system;
(6) Decomissioning and recycling stage: including guidelines on demolition and recycling. | Consented / Determined | na |
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L.1322
| Multi-level metrics for thermal environment and thermal performance of Data Centre | This Recommendation specifies a quantitative evaluation framework for the thermal environment of data centres characterized by high heat-flux density, stringent environmental requirements, and refrigeration systems with year-round operation. The framework defines multi-level indicators: room-, row-, cabinet-, device-, and chip-level, covering airflow organization and cooling effectiveness. The framework supports identifying hot spots, optimizing airflow patterns, reporting safety levels, and quantifying energy use and savings potential, and it enables comparison across data centres of different sizes, layouts, and airflow schemes. | Consented / Determined | na |
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L.1341
| Functional Requirements for Energy Efficiency in Intelligent Internet of Things Platforms | With the rapid growth of IoT platform technology, many sensors and devices can be connected. IoT applications require energy efficiency because most IoT devices run on constrained battery power. IoT applications involve many smart devices, making energy issues more essential for decreasing carbon footprints and costs. Moreover, energy efficiency is crucial because IoT platforms comprise many interconnected devices and services that require a lot of energy. With the strong emergence of AI nowadays, the IoT platform is integrated with AI to enhance the decision-making process in the IoT platform, improving the value of the data generated by the IoT platform. The integration between the IoT platform and AI functionality birthed a new paradigm called the intelligent IoT platform.
This Recommendation specifies the functional requirements essential for achieving sustainable and robust energy efficiency in intelligent Internet of Things (IoT) platforms. These platforms, defined as comprehensive technological frameworks integrating Artificial Intelligence (AI) and edge computing, face significant energy challenges due to the computational complexity introduced by AI and the collective power demand of a massive volume of interconnected devices. Recognizing that the integration of Artificial Intelligence (AI) and the immense scale of IoT deployments introduce significant energy consumption challenges, this document mandates a holistic approach to energy management across the entire system. This Recommendation first identifies considerations for energy management in intelligent IoT platforms in the aspect of hardware specifications, data collection and processing, AI models, and operation and management. Functional requirements for energy efficiency in intelligent IoT platforms are then addressed in the aspect of intelligent data acquisition and processing, energy-efficient communication protocols, dynamic AI resource management, Energy monitoring and management, AI-enhanced energy optimization, and lifecycle energy efficiency management. In addition, best practices to improve energy efficiency in intelligent IoT platforms in Appendix I with energy-aware IoT architecture design, energy-efficient data management, green network and communication, AI-based energy optimization, energy harvesting and sustainable power solutions, and cooperative energy saving techniques with edge and cloud. | Consented / Determined | na |
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L.1385
| Smart Energy Solutions for Manufacturing Industry | This Recommendation provides smart energy solutions, which can be utilized in the manufacturing industry. It defines the framework for industrial smart energy management system for different manufacturing scenarios. This Recommendation also provides use cases and guidance for application of smart energy solutions to manufacturing industry. On the premise of ensuring energy reliability, this Recommendation provides reference for the industrial sectors to improve energy efficiency levels in various aspects such as green energy transformation, energy monitoring, management, scheduling, and decision-making. | Consented / Determined | na |
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L.1411
| Guidance on simplified life cycle assessments of Information and Communication Technologies | This Recommendation provides guidance on how to perform, use and report simplified LCAs.
Moreover, it gives guidance on when the use of simplified approaches is relevant and recommended.
Moreover, it gives guidance on when the use of simplified approaches is relevant and recommended. | Consented / Determined | na |
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L.1421
| Methodologies for accounting Greenhouse Gas Emissions of Base Station Sites | With the continuous large-scale application of 4G/5G, as well as the rapid research and application layout of future 6G technology, the construction and application scale of communication base stations have been accelerating, which has led to a surge in energy and resource consumption. Whether through direct or indirect emissions, telecommunications operators generate a relatively large amount of greenhouse gas emissions in the process of maintaining the normal operation of base stations, with relatively diverse sources.
This draft Recommendation makes a brief introduction of base station sites, with description on classification and facilities composition which are supporting the networking business belongs to telecom operators. After that, we identify the source of greenhouse gas (GHG) emissions, which are from the telecom operators’ activity on operating base station sites, in Scope 1, 2 and 3 based on the guidance of GHG Protocol, ITU-T L.1420, ITU-T L.Suppl.57 and other relevant standards. Then, an accounting method is provided to support the assessment of the GHG emissions of Base Stations sites. This draft Recommendation identifies the relevant categories in Scope 3 to be considered in base station sites related activities from telecom operators.
The development of base station sites is booming with large-scaled application of the 5th generation (5G) mobile communication technology, relevant GHG emissions from the activities by telecom operators should be much particularly looked at. Based on study and output of this Recommendation, it may help identify the key approaches on GHG emissions reduction for base station sites in the future.
In Scope 3 of GHG emissions related to base station sites activities, we have extensively referenced content from ITU-T L Suppl.57. This is to maintain consistency in relevant accounting from an organizational perspective (of telecom operators) while conducting GHG emissions allocation specifically for the operations and activities of base stations. To maintain synergy and consistency with this standard (ITU-T L Suppl.57), and to ensure convenience and coherence in reading and using the overall content of this Recommendation, appropriate clarification, summarization, and modification have been made to the referenced content. | Consented / Determined | na |
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L.1450
| Methodologies for the assessment of the environmental impact of the information and communication technology sector | Recommendation ITU-T L.1450, which forms part of the ITU-T L.1400 series, consists of two parts:
1) Part I: The methodology for calculating the information and communication technology (ICT) sector footprint with respect to life cycle environmental impact including greenhouse gas (GHG) emissions;
2) Part II: The methodology for defining GHG emissions budget for the ICT sector considering a 2 C or lower trajectory.
Appendix IV gives an example of a partial ICT sector footprint derived in line with Part I of the Recommendation. Appendix X gives an example of the entire ICT sector footprint. | Consented / Determined | na |
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L.1472
| Requirements for the creation of an ITU database on energy consumption and GHG emissions of the ICT sector | This Recommendation provides the requirements to support the creation of an International Telecommunication Union (ITU) database on greenhouse gas (GHG) emissions of the Global information and communication technology (ICT) sector at worldwide level and at a national level. The guidance is intended to support ITU in establishing such a database. | Consented / Determined | na |
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L.1520
| Enablement indicator of information and communication technologies to other sectors and best practices to achieve Net Zero goal | This draft Recommendation defines the enablement indicators of information and communication technologies (ICT) to other sectors and provides ICT enablement evaluation methods. The application of the best practices provided in this draft Recommendation can help owners and managers of organizations to reducing the GHG emission by applying ICT, such measures could reduce other sectors' impact on climate change. | Consented / Determined | na |
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L.1801
| Guidelines for Assessing the Environmental Impact of Artificial Intelligence systems | The present document provides methodology for assessing environmental impact of AI systems. The methodology is based on Life Cycle Assessment (LCA) methodology standardized in [ITU-T L.1410/ETSI ES 203 199] and method for enabling effects for other sectors standardized in [ITU-T L.1480/ETSI ES 204 087]. The guidance in the present document focuses on AI system specific aspects which need to be taken into account in the assessment. Aggregation of AI impact on international, national or regional level is not part of the present document. | Consented / Determined | na |
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L.1510
| Environmental key performance indicators for digital infrastructure adapting to climate change | Key performance indicators (KPIs) are essential to enable infrastructure operators to measure their progress against their sustainability goals and to act where needed to ensure they remain on target. However, at present operators take different approaches to what KPIs they report, and the methodologies used to calculate the KPI values. As operators face similar green & low-carbon and sustainability challenges – and as other stakeholders – investors, end-users – will increasingly wish to understand and review the sustainability of businesses – it makes sense to review the sustainability KPIs used in the industry and to seek the development of industry agreed KPIs. This Recommendation takes up the challenge of identifying KPIs for green and sustainable digital infrastructures adapting to the challenges of climate change.
In this Recommendation, the key performance indicators on assessing the environmental impact for digital infrastructures are presented. These KPIs include greenhouse gas (GHG) emission, water usage, power supply, ecosystem, waste and indirect enablement of GHG emission reduction, etc.
For adoption and use of green and sustainable network KPIs, the following points are considered:
– Identifying key metrics and developing a unified methodology for the industry.
– Industry efforts to identify and adopt KPIs enabling more granular reporting. For example, allowing operators to drill-down on the specific issues such as energy use in each part of the network – mobile, fixed, core – and ideally, at least for internal assessment, to the level of specific geographies and sites.
– Definition and adoption of structured and evolving reporting standards to facilitate the evaluation of the KPIs in an automated manner.
This Recommendation is intended to build upon and utilize the best practices of other telco sustainability benchmarking frameworks and related KPI definitions (such as ones proposed by GSMA [b-GSMA ESG Metrics]), and also leading consulting companies [b-ABI research] [b-STL Partners] [b-GlobalPartners]. The KPIs and the review framework are presented as a first step towards in-depth analysis of the sustainability requirements. As the industry gains experience with the metrics, the KPIs and the framework are expected to ensure that it is fit for purpose. This ensures that the KPIs and framework continue to be aligned with work in other industry bodies – with the ultimate aim of ensuring a single set of industry wide agreed KPIs.
| Approved | 2025-10-22 |
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L.1396
| Monitoring and control interface for power, cooling and building environment systems in telecommunication networks – Information and communication technology equipment power, energy and environmental parameters monitoring information model | The goal of the present document is to define the measurement of electrical power and energy consumption of ICT equipment as well as environmental parameters (temperature, hygrometry) in order to improve energy monitoring and to correlate the power consumption to equipment operation activity (telecom traffic, computation, etc.). It is also to define the transfer protocol of this measurement data from site to network operation centre. Understanding power consumption provides the opportunity to reduce energy consumption of equipment and/or the network. Granularity, measurement period and accuracies are defined to meet these targets. They may depend on equipment types and location in the different segments of a network (customer termination, access, core, data-center, etc.). In addition, these measurements can be used to improve engineering and operation including more accurate dimensioning of power systems, network evolution modelling and prevision, audit on field, etc. | Approved | 2025-10-07 |
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L.1397
| Monitoring and control interface for power, cooling and building environment systems in telecommunication networks – Battery system with integrated control and monitoring information model | The exchange of information i.e. measurements, warnings & alarms, inventory & configuration data, will become key for an efficient and highly automated cooperation of different equipment at the telecom site. This exchange of information may occur on various architectural levels on-site or at even higher architectural layers between the NMS. As the telco-site responsibilities are often split between MNOs, TowerCos and ESCos (Electricity Serving Companies) the exchange of relevant information via data models and interfaces must be in the focus of standardization and it shall consider the upcoming virtualization and disaggregation at base-station and aggregation network sites. This recommendation will cover one part – Battery system with integrated control and monitoring information model - while other parts will be covered by other recommendation (under development or to be developed). | Approved | 2025-10-07 |
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L.1011
| Guidelines for the durability assessment of lithium-ion batteries | This Recommendation describes the importance of improving the durability of lithium-ion batteries at different stages of the product life cycle. Durability assessment method of lithium-ion batteries is given, including specific suggestions for improving durability in different evaluation dimensions. Finally, through the development of product durability evaluation indicators and grading, it provides specific guidance references for users to assess the durability of lithium-ion battery using this Recommendation.
| Approved | 2025-09-22 |
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L.1037
| Requirements for the collection, transportation, storage, dismantling, valorization and final disposal of waste electrical and electronic equipment | This Recommendation addresses the growing challenge of Waste Electrical and Electronic Equipment (WEEE) due to the rapid replacement and obsolescence of electrical and electronic equipment (EEE). As technological innovations accelerate, EEE products are replaced more frequently, contributing to a global surge in e-waste. The Global E-waste Monitor 2024 reports that 62 million tons of e-waste were generated in 2022, a figure expected to reach 82 million tons by 2030. Despite this growth, only a small percentage of e-waste is properly collected and recycled, particularly in developing countries. Much of the waste is dismantled in informal sectors, where unsafe practices lead to environmental and health risks.
This Recommendation provides a comprehensive framework for the collection, transportation, storage, dismantling, valorization, and final disposal of WEEE in a safe and environmentally sound manner, as well as for improving the valorization of WEEE in developing countries. It aims to improve recycling rates and resource recovery, particularly in developing countries, while supporting stakeholders in making environmentally conscious decisions and facilitating sustainable e-waste management. Additionally, the Recommendation contributes to creating a circular economy and increasing resource efficiency for EEE, particularly for ICTs, helping to harmonize global e-waste management practices. Encouraging traceability and well-defined classification systems facilitates more effective monitoring and sustainable management of e-waste.
| Approved | 2025-09-22 |
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L.1328
| Specification for waste heat reuse in telecommunication rooms and data centres | In the face of the rapid growth in the size and power density of global telecommunication rooms and data centers, the heat generated by equipment is growing dramatically, and if this part of the waste heat can be reused, it will not only improve the energy efficiency of telecommunication rooms and data centers, but also reduce the energy consumption of other industries such as heating. Therefore, guiding the use of waste heat reuse technology will become the next key breakthrough direction for energy saving and carbon reduction. Based on this, this Recommendation proposes the " Specification for waste heat reuse in telecommunication rooms and data centers ", which can effectively promote the reduction of energy loss and improve the energy efficiency. | Approved | 2025-09-22 |
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L.1491
| Measurement methodology and best practices for decarbonization of industrial park in support of net zero | This Recommendation describes the measurement methodology and best practices for decarbonization of industrial park in support of net zero. By describing the GHG emission accounting methods for industrial parks, this Recommendation identifies the assessment process and ICT tools required for net zero achievement in industrial parks. Finally, this Recommendation provides practical guidance to achieve net zero goal in industrial parks.
| Approved | 2025-09-22 |
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L.1004
| Universal fast-charging solution for mobile terminals | Recommendation ITU-T L.1004 is applicable to the universal fast-charging solution (UFCS) for mobile and wireless devices. This Recommendation defines the overall framework of the solution for mobile terminals and the role of each part. The communication flow between each part of the UFCS and the key functions in it are also described. The Recommendation specifies requirements for various aspects such as system, safety, electromagnetic compatibility, material, eco-environment and energy efficiency. The higher interoperability brings important environmental benefits including reduced electronic waste and use of materials and energy, a smaller carbon footprint through lesser use of energy and materials to produce chargers and being able to sell devices without a charger.
| Approved | 2025-07-29 |
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L.1018
| Specification for the durability assessment of mobile telecommunication terminals | Recommendation ITU-T L.1018 describes the importance of improving the durability of mobile telecommunication terminals at different stages of the product life cycle. A durability assessment method for mobile telecommunication terminals is given, including specific suggestions for improving durability in different evaluation dimensions. Finally, through the development of product durability evaluation indicators and grading, this Recommendation provides specific guidance references for users to assess the durability of mobile telecommunication terminals.
The EN 45552:2020 and EN 45553:2020 standards serve as comprehensive methodologies for assessing energy-related products for their durability and manufacturing capability, respectively. These standards have a broader scope and are considered universal benchmarks. On the other hand, Recommendation ITU-T L.1023 focuses on an assessment method for circularity scoring of information and communication technology (ICT) goods, employing different assessment dimensions compared with this Recommendation. Based on the above research, this Recommendation focuses on evaluating the durability of mobile telecommunication terminal products throughout their entire life cycle. It combines the characteristics of mobile terminal products and methods to improve durability during product design, production, use and recycling. It also evaluates the durability of mobile telecommunication terminal products based on environmental adaptability, maintenance and repair of the entire machine and spare parts, recycling and reuse, system management, data security and manufacturer operation. This evaluation content is more detailed than general international standards and differs from other standards in its evaluation dimensions and methods to meet industry's specific green development needs.
| Approved | 2025-07-29 |
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L.1025
| Assessment of material efficiency of information and communication technology network infrastructure goods – Server and data storage product secure data deletion functionality | Recommendation ITU-T L.1025 addresses the requirements on secure data deletion. It aims to give a valid and compliant method to assess if this specific requirement on data deletion has been met.
| Approved | 2025-07-29 |
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L.1080
| Assessment of material efficiency of information and communication technology network infrastructure goods – Server and data storage product availability of firmware and of security updates to firmware | Recommendation ITU-T L.1080 concerns server and data storage products, it establishes the means for the verification of compliance with the requirements for the availability of firmware and of security updates to the firmware for servers and data storage products.
| Approved | 2025-07-29 |
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L.1081
| Good practices for the sanitization of the information storage media in end-of-life information and communication technology user devices | Recommendation ITU-T L.1081 aims to provide good practices for the sanitization of the information media in end-of-life information and communication technology (ICT) user devices. For this purpose, it describes the necessary procedures and practices for implementing information storage media sanitization for waste electrical and electronic equipment at end-of-life and in reconditioning, refurbishment and recycling facilities. This Recommendation addresses end-of-life ICT user devices, implementing circular practices to return information storage media to a working condition for reuse, known as refunctionalization. This Recommendation applies to personal ICT user devices such as desktop and laptop computers, notebooks, tablets or terminals such as smartphones, and information media such as discs, solid-state drives, and universal serial bus (USB) storage.
| Approved | 2025-07-29 |