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Trolley Case Study Overview: March, 2003 CO 2 Emissions Reduction Potential for Santiago, Chile

Trolley Case Study Overview: March, 2003 CO 2 Emissions Reduction Potential for Santiago, Chile. Center for Clean Air Policy (CCAP) Cambio Climatico y Desarrollo (CC&D) International Institute for Sustainable Development (IISD) Funded by: Canadian International Development Agency (CIDA).

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Trolley Case Study Overview: March, 2003 CO 2 Emissions Reduction Potential for Santiago, Chile

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  1. Trolley Case Study Overview: March, 2003CO2 Emissions Reduction Potential for Santiago, Chile Center for Clean Air Policy (CCAP) Cambio Climatico y Desarrollo (CC&D) International Institute for Sustainable Development (IISD) Funded by: Canadian International Development Agency (CIDA)

  2. Why Consider Electric Trolleys? • Recommended by Steering Committee as a potential project in need of further analysis • Benefits vs. diesel buses • No ground-level emissions • Reduced maintenance costs & noise • Potential to reduce CO2 emissions • Santiago has access to clean source of electricity

  3. Range of Key Variables

  4. Key Operational Variables

  5. 1. Cost Comparisons • Step 1: Utilized a spreadsheet tool to compare costs of articulated diesel buses to articulated trolleys • Included capital and operating costs • Annualized all costs

  6. Annual Capital & Operating Costs

  7. 2. Energy Use • Step 2: Calculated energy use • Diesel: based on measurements in Santiago • Assumed articulated buses use 20% more energy • Trolley: based on manufacturer data (SKODA)

  8. 3. CO2 Emissions • Step 3: Calculated CO2 emissions • Electric Trolleys = estimates for Santiago’s electric emissions (SIC grid) • Assumed a range of generation mixes • Calculated emissions based on generation estimates • Diesel Buses = Used standard factor

  9. 2010 Estimated Electricity Emissions for Santiago

  10. 4. Cost per ton CO2 • Step 4: Estimated the Cost per tCO2 • Based upon a range of cost variables for trolleys & diesel buses • Framed a range of potential CO2 reductions from the use of electric trolleys

  11. Range of CO2 Benefits From Electric Trolley

  12. Range of CO2 Benefits From Electric Trolley – 100% Hydro

  13. Conclusions: Electric Trolleys • Low CO2 benefits, high costs • 100% hydro-power increases CO2 benefits, but still expensive • Air quality, health and noise benefits not quantified • Trolley technology may be more attractive to passengers than buses

  14. Fin? Source: http://www.tbus.org.uk/gallery.htm

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