Scope
L.1332 outlines the principles and concepts of measuring energy efficiency in a telecommunication network and its infrastructure equipment. It also provides a methodology for considering total energy consumption, including maintenance activities, by factoring in the energy required for transport activities during the maintenance phase. The recommendation considers different types of energy sources.
Summary
The recommendation defines some terms related to the energy flow and consumption in telecommunication networks, such as Alternating Current Information and Communication Technology (AC ICT) load, Direct Current ICT (DC ICT) load, high-voltage connection, load energy consumption, etc. It also explains some conventions for measuring equipment, observation period, and citation format.
The recommendation also describes energy flow in telecommunication networks with examples of energy flows from the grid to large, medium, and small telecommunication installations and how they differ regarding voltage connection, power conversion, and renewable energy sources. Site classification on their grid connection and energy consumption is also elaborated.
The recommendation also expands on the impact of maintenance activities on the energy used in network operations, especially for wide-area networks. It suggests a method to estimate the energy contribution of the travel phases of maintenance interventions and identifies some factors that influence the periodicity and distance of maintenance activities.
The recommendation further defines the metric for calculating total network infrastructure energy efficiency (NIEE) as the ratio between the ICT load energy consumption and the network’s total energy consumption.

It also explains how to measure the network’s total energy consumption by considering different energy sources, test instrument requirements, observation periods, and consumption factors.

Relevance for EXIGENCE
Relevant for requirements and scenarios, energy metrics, energy measurements and data collection.