Results of LCA on Hybrid Satellite Broadband Network and comparison with other Broadband Delivery Technologies Keith Dickerson, Climate Associates Ltd 3rd ETSI Workshop on ICT Energy Efficiency & Environmental Sustainability - 3-5 June 2015
Why am I making this presentation? To compare energy used and GHG emissions over lifecycle cle of hybrid satellite solutions with alternative e technologies: 30Mbits/s per user satellite plus low capacity terrestrial versus high capacity terrestrial alternatives To highlight aspects of satellite network design which could lead to better energy efficiency: Providing reasoned guidance to designers on best practice for energy saving. (Ideally) to show that satellite compares favourably with alternatives on energy efficiency and emissions when whole lifecycle is taken into account. BATS Broadband Access via Integrated Terrestrial & Satellite Systems 2
Overall BATS system architecture BATS Broadband Access via Integrated Terrestrial & Satellite Systems 3
Network Elements Satellite DSL ING IUG 3/4G Content Provider IUG: Intelligent User Gateway ING: Intelligent Network Gateway BATS Broadband Access via Integrated Terrestrial & Satellite Systems 4
Key Input Parameters 3 Inventories: EU, France, UK Period of study: 2020 2035 Addressable Market Number of households taking a BATS service 2020 2035 Number of terminals operating per year Addressable market and take rate Conversion factor for electricity 2020 2035 kgco 2 e per Watt BATS and alternative system network elements Electricity i consumption, manufacture, installation, i disposal Emissions of vehicles used for installation Each Inventory includes references to 88different external sources BATS Broadband Access via Integrated Terrestrial & Satellite Systems
Screen shot of the EU model showing key Input parameters-market BATS Broadband Access via Integrated Terrestrial & Satellite Systems
Screen shot of LCA model showing embedded comment BATS Broadband Access via Integrated Terrestrial & Satellite Systems 7
Screen shot of the EU model showing key Input parameters-bats System BATS Broadband Access via Integrated Terrestrial & Satellite Systems
Addressable Market for 30Mbit/s Services in 2020 BATS Broadband Access via Integrated Terrestrial & Satellite Systems 9
Market profile used for the EU GHG emissions model Satellite service uptake is 3.7% of households Modulated by market peak uptake of 50% for BATS subscribers Same addressable market assumed for alternative systems 60,0% 50,0% Remote Very rural Rural Suburban Urban 40,0% 30,0% 20,0% 0% 10,0% 0,0% 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 BATS Broadband Access via Integrated Terrestrial & Satellite Systems
Gross Power Generation by Source: EU Energy Trends to 2030 http://ec.europa.eu/energy/observatory/trends_2030/doc/trends_to_2030_update_2009.pdf BATS Broadband Access via Integrated Terrestrial & Satellite Systems 11
Emissions of Network Elements in kg CO 2 e BATS Broadband Access via Integrated Terrestrial & Satellite Systems 12
Comparison of different technologies BATS Broadband Access via Integrated Terrestrial & Satellite Systems 13
Initial assessment of GHG Emissions from different broadband access technologies kg of CO 2 e Linear scale BATS Broadband Access via Integrated Terrestrial & Satellite Systems 14
Satellite Modem State Transitions BATS Broadband Access via Integrated Terrestrial & Satellite Systems 15
EU GHG emissions over the life cycle with satellite modem power-down mode kg of CO 2 e Linear scale BATS Broadband Access via Integrated Terrestrial & Satellite Systems 16
Conclusions From an energy efficiency perspective, hybrid satellite systems can deliver broadband services on a comparable basis with terrestrial (fixed or mobile) alternatives when use of low power modes for satellite modem and IUG are incorporated into design Further work is needed to integrate the user equipment to obtain this level of energy efficiency BATS Broadband Access via Integrated Terrestrial & Satellite Systems 17