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Posts Tagged ‘alternative energy’

Wind power without the blades. Noise from wind turbine blades, inadvertent bat and bird kills and even the way wind turbines look have made installing them anything but a breeze. New York design firm Atelier DNA has an alternative concept that ditches blades in favor of stalks. Resembling thin cattails, the Windstalks generate electricity when [...]

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Nicaragua’s push to generate 94 percent of its own electricity from renewable resources by 2016 without damaging the environment has united the country. “The energy issue is an essential component for our sustainable development to assure the wellbeing and progress of the current and future generations,” says Emilio Rappaccioli, Nicaragua’s minister of energy and mines. [...]

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A new solar cell that achieves 41 percent efficiency The 41-percent efficiency rating is one of the highest recorded at this (light) concentration, and is challenged only by Stanford University spinoff Solar Junction’s multijunction GaAs cells, confirmed at 43.5 percent efficiency. The company is hoping for a DOE loan guarantee to expand production.

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Camelina-based jet fuel reduces carbon emissions from jets by about 80 percent The first transatlantic flight powered by biofuel landed Saturday at Paris-Le Bourget Airport after a seven hour flight from New Jersey. One-quarter of the fuel used to carry the Gulfstream G450 jet across the Atlantic Ocean was biofuel derived from camelina. A 50/50 [...]

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We’re just a few years from the point at which electricity from solar panels becomes cheaper than electricity generated by burning coal. The progress in solar panels has been dramatic and sustained. Solar Is Getting Cheaper, but How Far Can It Go? Here Comes the Sun California Solar Industry Booming: Report Finds State’s Solar Capacity [...]

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Brazilian wind power now cheaper than natural gas Seventy-eight wind power projects won contracts in last week’s energy auctions held by Brazil’s National Electric Power Agency, totalling 1,928MW and priced at approximately 99.5 reals (£37.4) per MWh. By comparison, the average price for power generated with natural gas is currently 103 reals (£38.7) per MWh [...]

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Turning olive waste into “ecologically perfect” fuel. Olives are being looked at as a renewable energy source, since its wood produces 2.5 times more energy than others, the smoke it releases has no negative impact on neighbors or the environment, and the ash left can be used for fertilizing gardens.

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Surface area of the Earth required to power the world with zero carbon emissions, using solar power alone

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Humans harness bacteria

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High altitude wind machines could power New York City

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Researchers are reporting they have successfully made a high quality biodiesel from spent coffee grounds. They estimate that the coffee ground biodiesel industry could generate huge profits annually using waste from US Starbucks stores alone. http://gas2.org http://arstechnica.com

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Wind could provide 20% of the nation’s energy: ”This is the equivalent of taking 140 million cars off the road”

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More about wind power: For under 2 cents a day per household, Americans could get 300 gigawatts of wind by 2030. That would: Reduce carbon dioxide emissions from electricity generation by 25 percent in 2030. Reduce natural gas use by 11 percent. Reduce cumulative water consumption associated with electricity generation by 4 trillion gallons by 2030. Support roughly [...]

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