Technical Committee (TC) Environmental Engineering (EE) Activity Report 2020

Chair: Beniamino Gorini, Nokia

Responsible for defining the equipment engineering, the bonding and grounding, the power supply interface and environmental aspects for telecommunication infrastructures and equipment.

ETSI’s Environmental Engineering Committee (TC EE) manages various engineering aspects of telecommunication equipment in different types of installation. These include climatic, thermal and other environmental conditions; physical requirements of equipment racks and cabinets; power supplies and grounding; Circular Economy (including lifecycle analysis) and energy performance measurement and assessment methods for different parts of radio access networks including data centres.

Cooperating with ETSI’s Access, Terminals, Transmission and Multiplexing (TC ATTM) and Cable (TC CABLE) Committees, TC EE develops standards to support EC Mandate M/462 on efficient energy use in fixed and mobile information and communication networks. Much of our work supports European Commission (EC) policies, regulation and legislation on eco-design aspects, where we liaise with the European Committee for Electrotechnical Standardization (CENELEC) to develop relevant standards.

In 2020 our activities continued to address three key areas: measurement methods for the energy efficiency of ICT equipment with a focus on 5G; standardization terms and trends; and energy-aware networking measurement methods.

In January ETSI received a draft standardization request (M/573) on ecodesign requirements for servers and data storage products; TC EE advised acceptance of this request, and progress was consequently made during the year on a number of related deliverables in liaison with CEN/CENELEC JTC10.

Our Working Group EE 01 continuing to revise environmental test standards to clarify expected performance criteria following the application of the tests and to adapt the requirements with climate change aspects and with IEC standards.

During the year we accordingly published revisions to two sub-parts [EN 300 019-2-3, EN 300 019-2-8] of our test standard for telecommunications equipment at underground and weatherproof locations.

The work of TC EE also embraces innovative energy storage technologies for ICT equipment – for example to provide resilience in smart sustainable cities. Based on work with ITU-T SG5, our EE 02 Working Group published a Technical Specification [TS 103 553-3] offering an evaluation, roadmap and recommendations on various available ‘supercapacitor’ solutions.  

Work in EE 02 meanwhile concluded the revision of our Harmonised Standard [subsequently published in 2021 as EN 302 099] on the powering of equipment in access network, covering reverse powering handshake and 400 VDC remote powering on power cable and power back-up. We also neared completion of a new ETSI Standard [subsequently published in 2021 as ES 203 700] on sustainable power feeding solutions for 5G networks.

Our EEPS Working Group creates environmental efficiency standards for radio access networks, including ICT products that are part of network infrastructure. In 2020 this work included publication of a Technical Specification [TS 103 786] on dynamic energy performance measurement methods for 5G base stations. Network Function Virtualization will present new issues and opportunities in respect to energy consumption of telecommunication networks. We therefore published a new standard [ES 203 682] describing an enhanced Green Abstraction Layer (GAL) interface for dynamic power management in NFV environments.

Look out for in 2021 – TC EE work in progress:

EE

  • Revision to EN 303 423 on measurement of networked standby power consumption of interconnecting equipment

EE 01

  • Revision to parts/subparts of EN 300 019 on environmental conditions and environmental tests for telecommunications equipment: covering portable and non-stationary use, ground vehicle installations and ship environments
  • Revision to TS 103 586 on liquid cooling solutions for Technology ICT infrastructure equipment

EE 02

  • EN on power supply interface at input of ICT equipment; Part 4: Up to 400 V DC and AC
  • Revision to EN 300 132-3 on power supply interface at input of ICT equipment; Part 3: Up to 400 V DC
  • ES on progressive migration of ICT sites to 400 V DC sources and distribution
  • TS on innovative energy storage technology for stationary use; Part 2: new battery technologies
  • TR on transient voltages at interface A3 on 400 V DC power distributions
  • Revision to TR 101 147 on interworking between Direct Current/Isolated (DC/I) and Direct Current/Common (DC/C) electrical power systems

 EE EEPS

  • EN on energy efficiency metrics and measurement methods for data storage equipment
  • EN on metrics, methods and parameters for assessment of material and resource efficiency aspects of ICT network infrastructure goods in context of circular economy
  • EN on assessment of material efficiency of ICT network infrastructure goods (circular economy) - Part 1: general / Part 2: secure data deletion functionality / Part 3: availability of firmware and security updates to firmware / Part 4: critical raw materials / Part 5: disassembly and disassembly instructions.
  • Revision to EN 303 470 on Energy Efficiency measurement methodology and KPI/metrics for servers
  • Revision to ES 203 682 on Green Abstraction Layer (GAL); power management capabilities of the future energy telecommunication fixed network nodes – enhanced Interface for power management in NFV environments
  • Revision to ES on assessment of mobile network energy efficiency
  • ES on energy efficiency measurement methodology and metrics for servers – Graphical Processor Unit (GPU) solution based
  • TR on energy related mobile end-user performance KPI
  • TR defining to define energy-aware states of network slicing and their management