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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Tenchusatsu who wrote (835545)	2/9/2015 2:46:50 PM
From: Wharf Rat	Read Replies (3) \| Respond to of 1575576

"1,190 soccer fields of nothing but solar panels." If you covered the parking lots for those fields with panels, you wouldn't need as many fields. I've seen estimates that all our needs could be met with solar alone by putting panels on 1/4 of our roofs and parking lots. That's without even using wind, geothermal, hydro, tidal, and biomass. 2 other estimates commdiginews.com nmsea.org = Stanford Professor on Letterman: Powering Entire World on Renewable Energy No Problem Brandon Baker \| October 25, 2013 10:26 am A Stanford University professor used a late-night television appearance earlier this month to do more than just advocate renewable energy. Mark Jacobson suggested that the entire world could easily live off renewable energy. “There’s enough wind to power the entire world, for all purposes, around seven times over,” the professor of civil and environmental engineering told David Letterman. “ Solar, about 30 times over, in high-solar locations worldwide.” Jacobson said a good starting point would be in the U.S., where he believes the world’s largest untapped resource of offshore wind energy exists on the East Coast. Jacobson, the director of Stanford’s Atmosphere/Energy program, told the audience that he is working on “science-based plans to eliminate global warming” because 2.5 million to 4 million deaths take place each year due to air pollution. Early on, Letterman posed one of the most pressing questions regarding a shift to renewables: “How do we motivate the fossil fuel people—the gas, and oil people—of this country to stop what they are doing? … They’re not going to give up this multi-billion dollar industry.” Jacobson responded, “We really do need policies put in place. Right now, the fossil fuel industry gets a lot of subsidies. Wind and solar also get subsidies, but not quite as much in aggregate. “Policies need to be shifted toward wind, solar, geothermal and electric cars.” Watch the attached to video to learn about Jacobson’s plan and why he believes “everything’s going to be OK.” ecowatch.com

To: Tenchusatsu who wrote (835545)	2/9/2015 2:53:29 PM
From: J_F_Shepard	Respond to of 1575576

Technology may eventually find a way to increase that efficiency to 20% or even 30%, but that's it. Do you remember how long ago Moore's Law ran out of gas???? New Solar Cell Efficiency Record Set At 46% December 3rd, 2014 by Guest Contributor Originally published on RenewEconomy. A new world record for the conversion of sunlight into electricity has been established in Europe, after a multi-junction solar cell developed through a French-German collaboration achieved 46 per cent efficiency – up from 43.6%. The record was achieved using a four-junction cell, developed by Soitec and CEA-Leti in France, together with the Fraunhofer Institute for Solar Energy Systems ISE in Germany as one of a new generation of multi-junction solar cells, developed specifically for concentrator PV plants, and expected to have an efficiency potential as high as 50 per cent under concentrated sunlight. Each of the cell’s four sub-cells converts precisely one quarter of the incoming photons into electricity, thanks to precise tuning of the composition and thicknesses of each layer inside the cell structure. The new record of 46 per cent efficiency – the cooperation’s second world record in a year – has been confirmed by the Japanese National Institute of Advanced Industrial Science and Technology, one of the leading centres for independent verification of solar cell performance results under standard-testing conditions. “We are very proud of this new world record,” said Jocelyne Wasselin, vice president of solar cell product development at French semicomductor company Soitec. “It confirms we made the right technology choice when we decided to develop this four-junction solar cell and clearly indicates that we can demonstrate 50 per cent efficiency in the near future. “To produce this new generation of solar cells, we have already installed a line in France. It uses our bonding and layer-transfer technologies and already employs more than 25 engineers and technicians,” added Wasselin.