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Abstract: . . . taking place? Has the rate of growth increased or decreased in the period 19801995 in comparison with 1965-1980? Assume an average capacity utilization factor of 75%, or 6570 hours per year of actual electricity production. 16-14. Landfill methane (see Chapter 9) can be a renewable energy source, as long as we keep supplying the garbage to the landfills. And we have been very good at that lately (see Figure 16-11). Read USA Today of 12/26/96 (“‘Pretty cool’ idea will heat Missouri school”) to find out . . . . . . attractive locations for installing wind turbines in the U.S. are in the southeastern part of the country, (b) It is expected that, over the next few decades, there will be a significant increase in the number of hydroelectric power plants in the U.S. WATER, WIND, BIOMASS AND GEOTHERMAL ENERGY 311 (c) It is expected that, over the next few decades, there will be a significant increase in the number of wind turbines in the U.S. (d) Figure 16-3 shows that in 1990 the U.S. generated less than 20% of the . . . . . . attractive locations for installing wind turbines in the U.S. are in the southeastern part of the country, (b) It is expected that, over the next few decades, there will be a significant increase in the number of hydroelectric power plants in the U.S. WATER, WIND, BIOMASS AND GEOTHERMAL ENERGY 311 (c) It is expected that, over the next few decades, there will be a significant increase in the number of wind turbines in the U.S. (d) Figure 16-3 shows that in 1990 the U.S. generated less than 20% of the world's . . . . . . to electricity. The latter currently has greater economic appeal: electricity priced at 5 cents a kilowatt-hour is equivalent to oil at roughly $85 a barrel.” (a) Show that this equivalence is indeed correct. (b) Search the Internet (using keywords biomass and electricity) to get a sense of how popular this energy option may be. 16-13. In Vital Signs 1993, published by the The Worldwatch Institute, information is provided about the growth of hydroelectric capacity in the world since 1950. Make a . . . . . . 1965-1980? Assume an average capacity utilization factor of 75%, or 6570 hours per year of actual electricity production. 16-14. Landfill methane (see Chapter 9) can be a renewable energy source, as long as we keep supplying the garbage to the landfills. And we have been very good at that lately (see Figure 16-11). Read USA Today of 12/26/96 (“‘Pretty cool’ idea will heat Missouri school”) to find out how some high-school students plan to exploit this alternative energy. . . . . . . – roughly 125,000 times the energy Americans consume each year.” (a) Are these numbers right? (b) Summarize his arguments in favor of (and against?) this “inexhaustible supply” of energy. 16-3. Find out more about the status of the “world's largest geothermal power company,” created by a merger of Magma Power Company and California Energy Company. See, for example, NYT of 10/5/94 and 12/6/94. Check the World Wide Web as well. 16-4. According to Madrid's El País of 5/10/94, the 30 MW plant at Tarifa, . . . --3000,6,250,3420,42322
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