Sustainable Transportation
101

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Smaller Is Better

• Acceleration (F = M * A)
• Drag (Cross Sectional Area)
• Rolling Resistance (Larger for heavy cars)

80% Rule

• Own the car that meets 80% of your driving needs
• Take two cars, or a larger car, via renting or borrowing the other 20%
• Save money, above rental cost , by not paying to fuel an over-sized vehicle all the time.

High Efficiency and Alternative Fuel

• High Efficiency
• Smart Car
• Hybrid
• Diesel

• Alternative Fuel
• WVO
• Biodiesel
• Ethanol
• Electric *
• Hydrogen *

The Green Car Score

• Numerical Rating
• Top Score = 100
• Vehicles marked down relative impact on:
• Global Warming
• Fossil Fuel Depletion
• Local Air Pollution
• Commuter, Carpooler, Average

Average GCS and Fuel Cost/mile

Hummer: GCS = -195 FC = $.28/mile

20 MPG Sedan: GCS = -42 FC = $.13/mile

Toyota Prius: GCS = 30 FC = $.06/mile

Smart Car: GCS = 31 FC = $.06/mile

Biodiesel Golf: GCS = 65 FC = $.08/mile

Electric Xebra: GCS = 80 FC = $.02/mile

Hybrid vs Biodiesel

• Toyota Prius
• 46 mpg
• Fuel: Gasoline
• GCS = 30
• CO2 = 267 g/mile
• Ffuel = 415 gallons

• VW Golf Tdi
• 42 mpg
• Fuel: B99
• GCS = 65
• CO2 = 61 g/mile
• Ffuel = 150 gallons

Fossil Fuel consumed to travel 20,000 miles

VW Golf running on biodiesel is more than twice as green as Prius

¼ the impact on Global Warming and 1/3 the impact on Fossil Fuel Depletion

Electric Car vs. Electric Car

• Zap Xebra
• 1500 lb City Electric Car
• Top Speed: 40 mph Range: 30 Miles
• 80% of vehicle Trips within 10 miles of home
• 40% of trips within 5 miles of home

Washington State Electricity

• 80% Hydroelectric
• GCS = 80
• CO2 = 28 g/mile
• Ffuel = 40 Gallons Equiv

United States Avg. Electricity

• 52% Coal
• GCS = 35
• CO2 = 162 g/mile
• Ffuel = 263 Gallons Equiv

Quantity of Fossil Fuel Energy burned to move the car 20,000 miles. Value represented as a gallon of gasoline equivalent

Ethanol vs. Biodiesel

• Ethanol
• NEPR = 1.5
• Gas Engine: 20 mpg

(97% of Passenger Vehicles)

100 gal. Fossil Fuel

150 gal. Ethanol

Car Moves 3000 miles

• Biodiesel
• NEPR = 3
• Diesel Engine: (33% more efficient) 27 mpg

100 gal. Fossil Fuel

300 gal. Biodiesel

Car Moves 8000 miles

For the same car, 260% more fossil fuel input required to make the car move if it is powered by a gas engine and ethanol, compared to a diesel engine and biodiesel

Vote Yes on I-937
15% of WA electricity must come from new renewable energy sources by 20202


???Questions???

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