Summary

Supplement 26 to ITU-T L-series Recommendations presents a case study of the application of Recommendation ITU-T L.1410 to the assessment of the greenhouse gas (GHG) emissions of a hybrid satellite and terrestrial broadband system over its life cycle. The goal of this assessment was to calculate the additional emissions of a hybrid satellite system assuming that an existing broadband system is present, which does not meet the European Digital Agenda rate of 30 Mb/s. The GHG emissions model that was developed for the assessment was then used to identify those parts of the Broadband Access via integrated Terrestrial and Satellite (BATS) system that would contribute the most to the GHG emissions, so that attention could be focused on mitigating those emissions. The network is the subject of research and development and is aimed at providing 30 Mb/s broadband services to rural or remote households in Europe. The proposed system lifetime is 2020–2035. The work was funded under the European Union 7th Framework Programme. This study was completed in 2014 by BATS project partners.