results of lca on hybrid satellite broadband network and...

Results of LCA on Hybrid Satellite Broadband Network and comparison with pother Broadband Delivery Technologies

Keith Dickerson, Climate Associates Ltd3rd 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 lifec cle of h brid satellite sol tions ith alternati elifecycle of hybrid satellite solutions with alternative 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:gy y

• Providing reasoned guidance to designers on best practice for energy saving.

(Ideally) to show that satellite compares favourably with(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


Network Elements

Satellite

IUG ING

DSL

3/4G

Content Provider

IUG: Intelligent User Gateway


ING: Intelligent Network Gateway

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• Number of terminals operating per year– Addressable market and take rate

• Conversion factor for electricity 2020‐2035y– kgCO2e per Watt

• BATS and alternative system network elementsEl i i i f i ll i di l– Electricity consumption, manufacture, installation, disposal

• Emissions of vehicles used for installationEach Inventory includes references to 88 different external

BATS – Broadband Access via Integrated Terrestrial & Satellite Systems

Each Inventory includes references to 88 different external sources

Screen shot of the EU model showing key Input parameters-market


Screen shot of LCA modelshowing embedded comment


Screen shot of the EU model showing key Input parameters-BATS System


Addressable Market for 30Mbit/s Services in 2020


Market profile used for the EU GHG emissions model

• Satellite service uptake is 3.7% of householdsModulated by market peak uptake of 50% for BATS subscribers– Modulated by market peak uptake of 50% for BATS subscribers

– Same addressable market assumed for alternative systems

60,0%

40,0%

50,0%

Remote Very rural Rural Suburban Urban

20 0%

30,0%

10,0%

20,0%


0,0%2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035

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

Emissions of Network Elements


in kg CO2e

Comparison of different technologies


Initial assessment of GHG Emissions from different broadband access technologies

kg of CO2ekg of CO2eLinear scale


Satellite Modem State Transitions


EU GHG emissions over the life cycle with satellite modem power-down mode

kg of CO2ekg of CO2eLinear scale


Conclusions

From an energy efficiency perspective, hybrid satellite systems can deliver broadband services on a comparable basis with terrestrial (fixed or mobile)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


results of lca on hybrid satellite broadband network and...

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