How to Power the World Without Fossil Fuels
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Mark Fischetti/Scientific American
Three times now, Mark Jacobson has gone out on the same limb. In 2009 he and co-author Mark Delucchi published a cover story in Scientific American that showed how the entire world could get all of its energy—fuel as well as electricity—from wind, water and solar sources by 2030. No coal or oil, no nuclear or natural gas. The tale sounded infeasible—except that Jacobson, from Stanford University, and Delucchi, from the University of California, Davis, calculated just how many hydroelectric dams, wave-energy systems, wind turbines, solar power plants and rooftop photovoltaic installations the world would need to run itself completely on renewable energy.
The article sparked a spirited debateon our Web site, and it also sparked a larger debate between forward-looking energy planners and those who would rather preserve the status quo. The duo went on to publish a detailed study in the journal Energy Policy that also called out numbers for a U.S. strategy.
Two weeks ago Jacobson and a larger team, including Delucchi, did it again. This time Jacobson showed in much finer detail how New York State’s residential, transportation, industrial, and heating and cooling sectors could all be powered by wind, water and sun, or “WWS,” as he calls it. His mix: 40 percent offshore wind (12,700 turbines), 10 percent onshore wind (4,020 turbines), 10 percent concentrated solar panels (387 power plants), 10 percent photovoltaic cells (828 facilities), 6 percent residential solar (five million rooftops), 12 percent government and commercial solar (500,000 rooftops), 5 percent geothermal (36 plants), 5.5 percent hydroelectric (6.6 large facilities), 1 percent tidal energy (2,600 turbines) and 0.5 percent wave energy (1,910 devices).
In the process, New York would reduce power demand by 37 percent, largely because the new energy sources are more efficient than the old ones. And because no fossil fuels would have to be purchased or burned, consumer costs would be similar to what they are today, and the state would eliminate a huge portion of its carbon dioxide emissions…
2013-04-16 19:03:45
Source: http://truthisscary.com/2013/04/how-to-power-the-world-without-fossil-fuels/
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