ML103620060

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2010/12/28-A Solar Grand Plan - by 2050 Solar Power Could End U.S. Dependence on Foreign Oil and Slash Greenhouse Gas Emissions
ML103620060
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Issue date: 12/28/2010
From:
Scientific American
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License Renewal 2, RAS 19321, 50-346-LR
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A Solar Grand Plan: Scientific American http://www.scientificamerican.com/article.cfm?id=a-solar-grand-plan[12/27/2010 4:52:23 PM]Image: Schott AG/Commercial Handout/EPA/CorbisToday's Alternative EnergyPromising technologies to wean the world from fossil fuels, includingoffshore wind, solar, geothermal and hydrogen cars, among others

>>October 20, 2008High prices for gasoline and home heatingoil are here to stay. The U.S. is at war in the Middle East at least in part to protect itsforeign oil interests. And as China, Indiaand other nations rapidly increase their demand for fossil fuels, future fighting overenergy looms large. In the meantime, power plants that burn coal, oil and natural gas, aswell as vehicles everywhere, continue to pour millions of tons of pollutants and greenhouse gases into the atmosphereannually, threatening the planet.Well-meaning scientists, engineers,economists and politicians have proposed various steps that could slightly reducefossil-fuel use and emissions. These stepsare not enough. The U.S. needs a bold plan to free itself from fossil fuels. Our analysis convinces us that a massive switch to solarHome >>Scientific American Magazine

>>January 2008Feature Articles l More ScienceA Solar Grand PlanBy 2050 solar power could end U.S. dependence on foreignoil and slash greenhouse gas emissionsBy Ken Zweibel , James Mason and Vasilis Fthenakis

  l lDecember 16, 2007 l  l 717See Inside Share Email PrintA massive switch from coal, oil, naturalgas and nuclear power plants to solar power plants could supply 69 percent of the U.S.'s electricity and 35 percent of its total energy by 2050.A vast area of photovoltaic cells wouldIn BriefTHE PRINT EDITIONView Latest Issue

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>>SEARCH Log In or RegisterLog In to SA DigitalBlog & ColumnsEnergy & Sustainability Evolution HealthMind & Brain Space TechnologyMore Science Multimedia Magazines A Solar Grand Plan: Scientific American http://www.scientificamerican.com/article.cfm?id=a-solar-grand-plan[12/27/2010 4:52:23 PM]

power is the logical answer.Subscribe Buy This Issue Already a Digital subscriber? Sign-in NowIf your institution has site license access, enter here.have to be erected in the Southwest.Excess daytime energy would be stored as compressed air in underground caverns to be tapped during nighttime hours.Large solar concentrator power plantswould be built as well.A new direct-current powertransmission backbone would deliver solar electricity across the country.But $420 billion in subsidies from 2011to 2050 would be required to fund the infrastructure and make it cost-

competitive.-The Editors Infographic Photovoltaics Infographic Underground

Storage Infogr a Concent SolarSupplemental MaterialPost a Comment l Read Comments (717)Reprints and Permissions

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