29 - 11/5/10 Lecture 29 - Energy: Renewable Energy Finish...

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11/5/10 1 Lecture 29 - Energy: Renewable Energy • Finish fossil fuels • Solar and wind power • Nuclear power Alternatives to foreign sources of fossil fuels • 1. Use less energy = efficiency & conservation. • 2. Find new domestic sources (e.g., Arctic National Wildlife Refuge) • 3. Shift to wind, biofuels, solar, etc. • 4. Nuclear power. “Stabilization wedges” (from Ch. 9) Each of these actions can contribute a "wedge;" a reduction of 1 billion tons in 2058. If all were implemented, we would approach net zero carbon emissions. Energy conservation • Benefits now: energy-efficient appliances, wiring, lights, heat pumps, window design, smart grid technology, etc. – Conventional power plants take 6-10 years to build. – Nuclear power plants take 10+ yrs. – Drilling in Arctic NWR will take 6+ years. “Passive houses” use 90% less energy for heating, cooling
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11/5/10 2 Energy conservation • Utilization Efficiencies – Most potential energy in fuel is lost as waste heat. Typical American family energy budget This is why conservation programs emphasize energy efficient vehicles – Gas mileage: • US has "CAFE" standards (Corporate
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This note was uploaded on 04/06/2011 for the course FNR 103 taught by Professor Staff during the Fall '08 term at Purdue University-West Lafayette.

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29 - 11/5/10 Lecture 29 - Energy: Renewable Energy Finish...

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