Myth:Electric Cars are the Next Big Thing
Presented by:Royle Juusola
Electric Cars
• Pros– Inexpensive Refueling– Quiet– No emissions at point of use
• Cons– Recharge Rates– Battery Life– Energy Density– Mass– Battery Safety
Source: Mail Online
Batteries
• 2009 DOE Energy Storage Report– Cost– Abuse Tolerance– Life– Performance
Energy Density
Petrol
Diesel oil (DERV)
Ethanol
Coal
Firewood
Natural gas
Taco Bell Bean Burrito
Nickel-cadmium Battery
NiMH
Lead-Acid Battery
Lithium-Ion
Lithium-Ion-Polymer
0 2000 4000 6000 8000 10000 12000 14000 16000
Energy Density (Wh/kg)
Data Source: MacKay, Taco Bell
Questions
• What are some disadvantages to electric cars?– Batteries
• How does the energy density of a battery compare to hydrocarbon energy sources?– Very poorly to say the least
Works Cited
• Bryce, Robert Power Hungry: The Myths of ‘Green’ Energy and the Real Fuels of the Future, New York: Public Affairs. 2010
• MacKay, J.C. Sustainable Energy – without the hot air , Cambridge: UIT Cambridge Ltd. 2009, http://www.inference.phy.cam.ac.uk/sustainable/book/tex/cft.pdf 19-March-2011
• "Full Nutrition Information: All Items." Taco Bell Calories and Nutrition Information. N.p., n.d. Web. 22 Mar. 2013.
• "Jeremy Clarkson Sparks New BBC Row over Top Gear Electric Supercar Test 'failure'"Mail Online. N.p., n.d. Web. 22 Mar. 2013.