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Unwiring the Planet:: Wireless Communications & Climate Change
1.
Unwiring the Planet
- Wireless Communications and Climate Change Jack Rowley, PhD, Director Research & Sustainability Dawn Haig-Thomas, Director Development Fund ITU International Symposium ICTs and Climate Change 17-18 June 2008 London, UK. © GSM Association 2008
2.
Mobile Communications –
Environmental Impacts • Global impact - about 0.1% of the total CO2 emissions. • UK impact – about 0.3% of CO2 emissions and around 1.8% of GDP. © GSM Association 2008 Sources: Forum for the Future (2006), UNEP (2008)
3.
Mobile Communications –
Environmental Impacts • Greater capacity with newer technologies – 8 fold increase. • Improved amplifier efficiency – 3 fold increase. • Modern base station can operate on 350 W. © GSM Association 2008 Source: Telefonica O2 Europe, T-Mobile, Ericsson
4.
Frequency Allocations Effect
Cell Size 10km Cell Radius (dictates number of 8.9 base stations) 5.5 3.9 4.7 2.9 100% 126% 328% 455% 675% 1230% 700 850 2100 2500 3500 5800 Frequency of operation of cellular mobile network, MHz Relative Capex, %, for network infrastructure investment © GSM Association 2008
5.
Energy Use During
Operations More than 80% of a mobile Handset Energy Use: operators energy is used by masts – About 11% energy wasted is the and switch centres. charging process. Base station energy savings: • If 10% of mobile phone users turned off their chargers after use, – Equipment efficiency and optimum the energy saved in one year could siting. power 60,000 European homes. – Reduce active cooling. – EU Code of Conduct on Efficiency – GSMA pilots of renewable energy of External Power Supplies and bio-fuels to power base stations. © GSM Association 2008
6.
Alternative Power Opportunity
Increase in Oil Price 1994-2008 About 1.6 bn people without access to grid electricity. Future mobile subscriber growth heavily dependant on off-grid. 100% diesel price increase since 2002. Source: Go-Tech Solar, wind and other green Green Power Cost Reduction Opportunities & Technology Learning Curve & 1998 - 2020 power technology costs are rapidly improving. Current deployments about 1000 sites worldwide. Source: NET Ltd © GSM Association 2008
7.
Case Study –
MTC, Namibia 90 day trial started in April 2007 involving GSMA Development Fund, Mobile Telecommunications Limited (MTC) of Namibia and Motorola. Validate the use of wind and solar as feasible and cost-effective. – 6kW turbine mounted on a 15m mast with a 5.5m rotor diameter. – 28kW solar panels mounted on a steel structure facing north. – Batteries to provide 60 hours support time and monitoring electronics. Results: – Average of 198kWh of power per week (10kWh greater than necessary). – Return on investment period of three years. – MTC could save • roughly 4,580kg CO2 annually versus grid electricity. • an additional 649.25kgs CO2 annually by removing backup Diesel Generators. © GSM Association 2008
8.
Mobile Phone Lifecycle ©
GSM Association 2008
9.
GSMA Report -
Mobile Phone Lifecycles About 900 million mobile phones sold in 2006. – 50-80% as replacement phones. – About 10% of new customers rely on a ‘used’ phone. About 20 million phones collected globally. – Only about 5% of ‘unwanted’ phones. – Perceived value is a major barrier to increased collection in all countries. – Only waste components returned in some countries. – Better engagement with informal sector needed for successful takeback in some countries. GSMA contributing to UNEP Mobile Phone Partnership Initiative to develop guidelines for environmentally sound management. © GSM Association 2008 http://www.gsmworld.com/health/wireless/lifecycle.shtml
10.
Environmental Impact of
Charger Incompatibility Gartner estimates 1.2 billion mobile phones will be sold in 2008. – Between 50% and 80% are replacement phones. • 50,000 to 82,000 tonnes of replacement chargers each year. Charger represents about 7% of the life-time energy cost of a phone. – 13.6 to 21.8 million tonnes CO2e each year in replacement chargers. Chinese government mandating single charger based on USB. – Open Mobile Terminal Platform has similar recommendation. © GSM Association 2008 Source: GSMA analysis from UNEP, Gartner, Nokia, University of Southern Queensland data.
11.
Environmental Benefits of Telecommunications
Environmental burden of a roundtrip travel between Berkeley and Chicago . – ‘Wireless teleconferencing results in 1-3 orders of magnitude lower CO2, NOx, and SO2 emissions than business travel.’ Carbon reduction opportunities through telecommunications estimated at 4.9% of Australia’s total national emissions. Monitoring applications: – Air pollution in Ghana. – Animal movements in South Africa. Sources: Toffel and Horvath, Environ. Sci. Technol. (2004). © GSM Association 2008 Report by Climate Risk for Telstra (2007).
12.
Conclusions
Mobile communications is small but significant contributor. Opportunities for companies and individuals to reduce impacts. Operators and manufacturers recognise the need to contribute. Also potential direct and indirect environmental benefits. Need a more systematic analysis for the wireless sector. © GSM Association 2008
13.
Thank You
Contact : Dr Jack Rowley Job title : Director Research & Sustainability email address : jrowley@gsm.org Website: www.gsmworld.com/health Contact : Dawn Haig-Thomas Job title : Director, GSMA Development Fund email address : dhaigthomas@gsm.org Website: www.gsmworld.com/developmentfund © GSM Association 2008
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