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anonymous

Duke Energy plans for ninth wind farm in Wyoming - 0 views

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    Nearly 100 MW of turbines are expected to come from General Electric, leaving the utility and energy developer looking for more suppliers to meet a scheduled late-2010 commercial launch.
Skeptical Debunker

Bloom Energy Promises Cheap, Emissions-Free Power From a Small Box | Popular Science - 0 views

  • The Bloom Box idea came from K.R. Sridhar, a former NASA rocket scientist who once built a similar box device to generate oxygen on Mars for future colonists. Sridhar simply turned the concept on its head by pumping oxygen into the box, along with fuel. The oxygen and fuel combine within a new type of fuel cell to create the chemical reaction that makes electricity. There's also no need for power lines coming in from an outside source, and Sridhar envisions the box eventually providing energy wirelessly to homes and businesses. That could do away with traditional power plants and the power grid. Such transformative power may only come about if the Bloom Box fuel cells can work reliably and efficiently -- other fuel cell technologies have proven notoriously finicky. Sridhar makes his fuel cells based on cheap sand-based ceramics, coated with special green and black "inks" that allow for the chemical reaction which makes electricity. One of the simple disks can power a light bulb, and a stack of 64 disks with cheap metal plates in between them can supposedly power a Starbucks. And unlike fuel cells that require pure hydrogen, the Bloom Box can use fuels ranging from natural gas to bio-gas.
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    A boxy power plant that could one day produce efficient, inexpensive, clean energy in every home might sound like a pipe dream, but it's the very real product of a Silicon Valley startup called Bloom Energy. Twenty large corporations that include Google, FedEx, Walmart and eBay have already purchased and begun testing the Bloom Boxes. 60 Minutes recently got a sneak peek at this possibly game-changing energy device.
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    Here's SOME of the "rubs". How long will the device's last and what are the maintenance costs (if any)? What will the cost of the fuel be and how much is used? Will the manufacturing process "scale up nicely" (and easily) so that "economies of scale" will actually bring the price of a home-system down to around $3-5K? Will the price of the system, its maintenance, and fuel actually come out to be significantly less than the price of "grid delivered" electricity? Without "good enough" answers to such questions, this system may be more of a good remote generation facility than a grid replacement.
cysko cysko

[食品公司].Food.Inc._在线视频观看_土豆网视频 食品公司 Food Inc. 电影 内幕 英语 - 0 views

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    Food, Inc. is a 2008 American documentary film directed by Emmy Award-winning filmmaker Robert Kenner.[2] The film examines large-scale agricultural food production in the United States, concluding that the meat and vegetables produced by this type of economic enterprise have many hidden costs and are unhealthy and environmentally-harmful. The film is narrated by Michael Pollan and Eric Schlosser, two long-time critics of the industrial production of food.[3][4] The documentary generated extensive controversy in that it was heavily criticized by large American corporations engaged in industrial food production.[2]
Maluvia Haseltine

Light the World Using Dirt Powered Fuel Cells! | Inhabitat - 0 views

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    Microbial Powered electrical generation
Infogreen Global

Low cost solar technology - 0 views

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    Green is the most efficient "semi-transparent" colour for producing electricity, although red and purple also work well. Oxford PV predicts that manufacturing costs of its product will be around 50% less than the current lowest-cost thin film technology and expects its new mechanism will eventually match the unsubsidised cost of electricity generated from fossil fuels.
Infogreen Global

Nanoengineered batteries could enable the next generation of high-power rechargeable ... - 0 views

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    Batteries for all-electric vehicles must deliver high power densities in addition to high energy densities, Koatkar said. These vehicles today use supercapacitors to perform power-intensive functions, such as starting the vehicle and rapid acceleration, in conjunction with conventional batteries that deliver high energy density for normal cruise driving and other operations. Koratkar said the invention of nanoscoops may enable these two separate systems to be combined into a single, more efficient battery unit.
Jack Ingram

Capital investment in desalination plants to reach $87.8bn by 2016: Pike Research - 0 views

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    The increased construction of desalination plants due to the steady fall in the cost of several key technologies for seawater-to-freshwater conversion is projected to generate a cumulative capital investment of $87.8bn worldwide from 2010 to 2016, says a report from Pike Research.
Infogreen Global

New Solar Technologies to Generate Clean Electricity and Hydrogen Fuel - 0 views

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    "Sunlight in one hour could power the world for a year, but we don't tap into it for either electricity or for making solar fuels," Detty said, explaining the importance of his work. "Plants use sunlight to make their own fuels. Humans don't. We use oil. So if we want to have energy independence, it will come from solar."
Infogreen Global

Sunlight to hydrogen system works, researchers confirms - 0 views

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    The researchers envision energy-producing photoconversion systems similar to photovoltaic cells that generate hydrogen fuel, comparable to the way plants and other photosynthetic organisms convert light to energy.
Infogreen Global

B-Class F-CELL was accepted by the National Organisation Hydrogen and Fuel Cell Techn... - 0 views

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    The fuel cell generates the electrical power on board the vehicle, from a chemical reaction between oxygen and hydrogen - producing only pure water and zero emissions.
Infogreen Global

Nanotechnology has increased efficiency of organic solar cells - 0 views

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    Egbe has achieved an efficiency of four percent and is trying to find out how to improve the efficiency in general. Not only for his system, but also for other systems researchers are working on. "The efficiency of organic solar cells has already reached eight percent and commercial products are on the market," he said.
Infogreen Global

New gearless wind turbine for low to moderate wind speeds - 0 views

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    This type of generator is characterized by its simple, robust design, requiring no excitation power, slip rings or excitation control systems. This results in high efficiency even at low loads.
Infogreen Global

Electric Buses a New Attraction in Seoul City - 0 views

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    A growing number of people who have had a chance to ride on the buses have posted photos and comments on the electric buses on blogs and SNS services such as Twitter on their own. As a result, the city said Namsan Electric Buses have generated a desire to experience them first-hand among people planning to visit Namsan.
Infogreen Global

How to generate electricity from fresh water and salty ocean water - 0 views

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    Initially, the battery is filled with freshwater and a small electric current is applied to charge it up. The freshwater is then drained and replaced with seawater. Because seawater is salty, containing 60 to 100 times more ions than freshwater, it increases the electrical potential, or voltage, between the two electrodes. That makes it possible to reap far more electricity than the amount used to charge the battery.
Alex Parker

The 10 biggest clean energy developments of 2013 - 2 views

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    The year 2013 witnessed some significant milestones in renewable power generation and transmission, inculding the opening of some of the world's biggest wind, solar and bio-gasification plants. Power-technology.com picks the ten biggest clean energy developments from 2013.
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    The year 2013 witnessed some significant milestones in renewable power generation and transmission, inculding the opening of some of the world's biggest wind, solar and bio-gasification plants. Power-technology.com picks the ten biggest clean energy developments from 2013. The London Array, the world's biggest offshore wind farm, at 630MW installed capacity was opened in July 2013.
Alex Parker

UK nuclear waste - where it's generated, contained, transported and stored - 1 views

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    It will be decades before the UK Government builds a long-term storage for the country's radioactive nuclear waste; but where is this waste produced, contained, transported and stored in the interim, and just how much of it is there? Via an interactive map, Future Power Technology, provides the answers to these questions.
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