on a range of global decision scenarios modeled by the International Energy Agency, it will grow so slowly that it will actually lose market share, rising to between 4,590 TWh/yr and 9% market share (“Baseline 2050” scenario) to 5,505 TWh/yr and 13% market share by 2050 (“BLUE hiOil&Gas” scenario). Table 2.5,
152 C. Goodall,
153 As of 2006, Germany, the United States, and Spain were leading the world in wind power with 22,247, 16,818, and 15,145 megawatts installed capacity, respectively. India and China had 8,000 and 6,050 megawatts, respectively. The United States is now installing more turbines per year than any other country. Table 10.1,
154 Technological advances, increased manufacturing capacity, and bigger turbines have helped to lower the cost of wind energy at least fourfold since the 1980s. Efficiency has steadily increased and the turbines themselves have become larger and taller, with mass-produced rotors growing from less than 20 meters in 1985 to >100 meters today, roughly the length of an American football field. While not yet price-competitive with coal or gas-fired power plants, wind-powered electricity is getting close.
155 Based on a range of global decision scenarios modeled by the International Energy Agency, global electricity production from wind power will rise from 111 TWh/yr and 1% market share in 2005 to at least 1,208 TWh/yr and 2% market share by 2050 (“Baseline 2050” scenario, with no new incentives), and could rise as high as 6,743 TWh/yr and 17% market share (“BLUE noCCS” scenario, with aggressive incentives and no established carbon sequestration technology). Table 2.5,
156 The Shockley-Queisser limit.
157 N. S. Lewis, “Toward Cost-Effective Solar Energy Use,”
158 See note 118.
159 M. Lavelle, “Big Solar Project Planned for Arizona Desert,”
160 For more information visit the Trans-Mediterranean Renewable Energy Cooperation (TREC) home page, www.desertec.org.
161 See D. J. C. Mackay,
162 CSP plants, because they use the traditional turbine method for electricity generation, can also be designed to burn natural gas or coal during nights and cloudy days.
163 A newer concept, called compressed-air storage, is to pump air, rather than water, into a tank or sealed underground cavern.
164 www.google.org/recharge/index.html (accessed March 10, 2009).
165 Especially in thin-film photovoltaics and cheap catalysts, e.g., M. W. Kanan, D. G. Nocera, “In Situ Formation of an Oxygen-Evolving Catalyst in Neutral Water Containing Phosphate and Co2+,”
166 N. S. Lewis, “Toward Cost-Effective Solar Energy Use,”
167 C. Goodall,
168 Based on a range of global decision scenarios modeled by the International Energy Agency, global solar electricity production will rise from 3 TWh/yr (virtually zero market share) in 2005 to 167 TWh/yr (still virtually zero market share) in 2050 (“Baseline 2050” scenario, with no new incentives), to as high as 5,297 TWh/yr and 13% market share by 2050 (“BLUE noCCS” scenario, with aggressive incentives and no established carbon sequestration technology). Table 2.5,
169 Today, some 82% of the world’s electricity is made from nonrenewable coal (40%), natural gas (20%), uranium (15%), and oil (7%). Hydropower and all other renewables combined provide just 18%. Depending on our choices, they could rise to capture as much as 64% market share by 2050 (in an extremely aggressive scenario) or drop slightly to 15%. The true outcome will likely lie somewhere in between these IEA model simulations, but under no imaginable scenario will we free ourselves from fossil hydrocarbon energy in the next forty years.
170
171 “Explosive Growth: LNG Expands in Australia,”
172 “BP Statistical Review of World Energy June 2009,” 45 pp., www.bp.com/statisticalreview (accessed November 28, 2009).
173 More precisely, 150 times current annual production for hard coal, and over 200 times annual production for lignite. T. Thielemann, S. Schmidt, J. P. Gerling, “Lignite and Hard Coal: Energy Suppliers for World Needs until the Year 2100—An Outlook,”
174 Equivalent to five hundred 500-megawatt coal-fired power plants. J. Deutch, E. J. Moniz, I. Green et al,
175 Fischer-Tropsch technology is one way to do this. Ibid
176 L. C. Smith, G. A. Olyphant, “Within-Storm Variations in Runoff and Sediment Export from a Rapidly Eroding Coal-Refuse Deposit,”
177 C. Gautier,
178 T. Thielemann, S. Schmidt, J. P. Gerling, “Lignite and Hard Coal: Energy Suppliers for World Needs until the Year 2100—An Outlook,”
179 J. Deutch, E. J. Moniz, I. Green et al,
180 “Trouble in Store,”
181 Iowa weather events reconstructed from personal interview with State Climatologist Harry Hillaker in Des Moines, July 16, 2008; also a written summary he prepared in December 2008; also press releases from the Iowa Department of Agriculture and Land Stewardship and the Federal Emergency Management Agency (FEMA).
182 “FEMA, Iowans Mark Six Month Anniversary of Historic Disaster,” Federal Emergency Management Agency, Press Release Number 1763-222, November 26, 2008.
183 “Iowa Department of Agriculture and Land Stewardship Officials Brief Rebuild Iowa Commission on Damage to Conservation Practices from Flooding,” press release, Iowa Department of Agriculture and Land Stewardship, July 31, 2008.
184 D. Heldt, “University of Iowa’s New Flood Damage Estimate: $743 million,”
185
186 Executive Order S-06-08, signed June 4, 2008, by Arnold Schwarzenegger, governor of the State of California.