The Future of Alternative Energy
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Residential energy use in the United States is predicted to increase 25 percent by 2025. A small but increasing share of that power will trickle in from renewable energy sources, experts say.
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By Frank J. Dinan  Two critically important energy problems face us at this early point in the 21st century, and our best approach to dealing with each of them is likely to involve technology that resembles a lawn mower much more than it does an oil well.
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In a few weeks, scientists from across the world will gather in the New Mexico desert to compete for one of the strangest and most ambitious technological competitions ever devised. Some researchers will unveil robots, powered by solar panels, which will climb long lengths of cable.
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Blog: An economic analysis of alternative fuels shows that consumer behavior and lack of infrastructure means that gasoline will run cars for decades.
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Faced with power cuts stretching into the next decade, South Africa is slowly switching its focus to alternative energy sources in a country blessed with bountiful sunshine and a lengthy coastline.
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With oil near $50 a barrel, alternatives to gasoline are attracting more attention - including fuel cells, devices that convert hydrogen into electric current with no waste products except heat and pure water.
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Pie charts compare energy sources now to goals for 2030. It had better not be pie in the sky, or the sky may be falling.
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Radical goals for 2020 boost renewable energy and cut emissions sharply.
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Concerns over exploding computer  batteries may be heating up, but alternative power sources for  portable devices like laptops, music players and cellphones  could still be up to 10 years away.
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Real Goods Solar gets ready to join the mix.
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Concerns over exploding computer   batteries may be heating up, but alternative power sources for   portable devices like laptops, music players and cellphones   could still be up to 10 years away.
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Years before most knew about green energy, Iceland was tapping into its geysers and volcanoes. With gas at $8 a gallon, renewables now provide almost all heating and electricity. And advocates can see a country free of fossil fuel use by 2050.
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It's time for radical robomediation. Let's hand the service industry to automatons rather than transforming humans into reluctant machines. Commentary by Momus.
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Ethanol is the currently the star of biofuels but new mandates will spur development of synthetic biofuels that mimic fossil fuels, says policy analyst.
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The FutureGen Alliance finally announced the site of what would be America's first utility-scale zero-emissions coal-powered electrical plant. But there are those who doubt that this magic bullet will ever work.
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DURBAN, Sep 27 (IPS) - Biofuels offer Africa the chance to supply itself  with alternative energy sources, and also to become a major  supplier of these sources for developed markets. Yet, challenges  -- from creating the relevant infrastructure to competition for  biofuel crops from food markets -- remain.
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Making ethanol from corn is expensive. Better biofuels are years away from the gas tank. But do we really have any alternative?