| Work item | Question | Equiv. Num. | Status | Timing | Approval process | Version | Liaison relationship | Subject / Title | Priority |
| L.1203 | Q6/5 | RES/EE-02111 | Under study | 2026 | AAP | Rev. | ETSI | Colour and marking identification of up to 400 VDC power distributionfor information and communication technology systems | Medium |
| L.1205rev | Q6/5 | RES/EE-02113 (ES 203 474) | Under study | 2026-12 | AAP | Rev. | ETSI TC EE / EE2 WG | Interfacing of renewable energy or distributed power sources to up to 400 VDC power feeding systems | Medium |
| L.1331rev | Q6/5 | RES/EE-EEPS69 | Under study | 2026 | AAP | Rev. | ETSI TC EE / EEPS (proposed by them as joint activity), 3GPP SA5, ETSI ISG NFV | Assessment of mobile network energy efficiency | Medium |
| L.Arch_AI energy | Q6/5 | | Under study | 2026 | AAP | New | - | Specification of energy supply system architecture for Artificial Intelligence computing scenarios | Medium |
| L.AZB | Q6/5 | | Under study | 2027-12 | AAP | - | IEC TC21 | Aqueous Zinc-Based Battery Systems for Base Station Applications | Medium |
| L.DLEE | Q6/5 | | Under study | 2026 | AAP | New | ISO/IEC JTC1/SC42, SG16 | Deep Learning Computation Energy Efficiency Evaluation Framework and Metrics | Medium |
| L.DSBS | Q6/5 | | Under study | 2026-12 | AAP | New | - | Application practice of Direct Current dual-cooling source air conditioner utilizing compressor and heat pipe in base station | Medium |
| L.DSEC | Q6/5 | | Under study | 2027 | AAP | New | ITU-T SG20 | Requirements for energy efficient management of data storage in data centres | Medium |
| L.EC&MM-IoTD | Q6/5 | | Under study | 2027-12 | AAP | New | Study Group 20 | Energy consumption metrics and measurement methodology of constrained Internet of Things sensor devices in smart grid | Medium |
| L.EE_dse | Q6/5 | | Under study | 2026 | AAP | New | ETSI EE | Energy efficiency metrics and measurement methods for data storage equipment | Medium |
| L.EE_serv | Q6/5 | REN/EE-EEPS42 | Under study | 2026 | AAP | New | ETSI EE | Energy Efficiency measurement methodology and metrics for servers | High |
| L.Energy_sav_Cloud & Edge | Q6/5 | | Under study | 2026 | AAP | New | - | Energy saving design for Data Centre considering harmonization of Cloud and Edge | Medium |
| L.FNEE | Q6/5 | DES/EE-EEPS65 | Under study | 2026 | AAP | New | - | Assessment of Fixed Network Energy Efficiency | Medium |
| L.fra_cooling | Q6/5 | | Under study | 2025 | AAP | New | - | Functional Requirements and Adoption of Cooling Technology for ICT installations | Medium |
| L.FR-ESC | Q6/5 | | Under study | 2026 | AAP | New | ITU-T SG13 | Framework and Requirements of Environmentally Sustainable Computing | Low |
| L.HRES_PD&HA | Q6/5 | | Under study | 2026 | AAP | New | - | Hybrid Renewable Energy System based on solar for ICT Portable Devices and Low-Power Home Appliance | Medium |
| L.IEDL | Q6/5 | | Under study | 2026 | AAP | New | - | Energy saving strategy for deep learning computing | Medium |
| L.ITLB | Q6/5 | | Under study | 2026 | AAP | New | IEC TC 21 | Application practices of smart managements of Lithium iron phosphate battery in telecommunication rooms and data centres | Medium |
| L.liquid_DC | Q6/5 | | Under study | 2026 | AAP | New | - | High Efficiency Liquid Cooling Solutions and Practices for Data Centres to Climate Change Mitigation and Adaptation | Medium |
| L.MCI_APS | Q6/5 | RES/EE-02114 (ES 202 336-9) | Under study | 2026-12 | AAP | New | ETSI TC EE / EE2 WG | Monitoring and Control Interface for Power, Cooling and Building Environment Systems in Telecommunication Networks - Alternative Power Systems | Medium |