News tagged with power efficiency
Related topics: power consumption
LED's efficiency exceeds 100%
(PhysOrg.com) -- For the first time, researchers have demonstrated that an LED can emit more optical power than the electrical power it consumes. Although scientifically intriguing, the results won’t ...
Mar 05, 2012 |
4.4 / 5 (65) |
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Magnesium: Alternative Power Source
(PhysOrg.com) -- There is enough magnesium to meet the world's energy needs for the next 300,000 years, says Dr. Takashi Yabe of the Tokyo Institute of Technology.
Technology / Energy & Green Tech
Apr 23, 2010 |
4.3 / 5 (40) |
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Near-threshold computing could enable up to 100x reduction in power consumption
(PhysOrg.com) -- While electronic devices have greatly improved in many regards, such as in storage capacity, graphics, and overall performance, etc., they still have a weight hanging around their neck: they’re ...
Feb 17, 2010 |
4.2 / 5 (37) |
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Study predicts nanoscience will greatly increase efficiency of next-generation solar cells
As the fastest growing energy technology in the world, solar energy continues to account for more and more of the world’s energy supply. Currently, most commercial photovoltaic power comes from bulk semiconductor materials. ...
Nanotechnology / Nanomaterials
Aug 13, 2010 |
4.5 / 5 (26) |
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Discovery of a 'dark state' could increase maximum theoretical efficiency of solar cells from 31 to 44 percent
The efficiency of conventional solar cells could be significantly increased, according to new research on the mechanisms of solar energy conversion led by chemist Xiaoyang Zhu at The University of Texas at Austin.
Dec 15, 2011 |
4.8 / 5 (23) |
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The sun is a star when it comes to sustainable energy
At a national scientific meeting last week where biofuels - principally ethanol - were uniformly trashed as an environmental train wreck, one bright, carbon-free light gleamed in our energy future: the sun.
Technology / Energy & Green Tech
Feb 25, 2009 |
4.2 / 5 (25) |
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Solar power goes viral: Modified virus improves solar-cell efficiency by one-third
(PhysOrg.com) -- Researchers at MIT have found a way to make significant improvements to the power-conversion efficiency of solar cells by enlisting the services of tiny viruses to perform detailed assembly ...
Nanotechnology / Nanomaterials
Apr 25, 2011 |
4.8 / 5 (21) |
6
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US energy use chart shows we waste more than half of our energy
(PhysOrg.com) -- This flow chart of the estimated US energy use in 2009, assembled by the Lawrence Livermore National Laboratory (LLNL), paints a pretty sobering picture of our energy situation. To begin with, ...
Technology / Energy & Green Tech
Apr 09, 2011 |
3.5 / 5 (27) |
101
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Hot Electrons Could Double Solar Cell Power Efficiency
Scientists have experimentally verified a theory suggesting that hot electrons could double the output of solar cells. The researchers, from Boston College, have built solar cells that successfully use hot ...
Dec 18, 2009 |
4.3 / 5 (19) |
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Big Blue dreams of a big green battery
Spike Narayan watched a Tesla electric sports car rocket from zero to 60 mph (100 kph) in less than four seconds and knew batteries would be the next big thing.
Technology / Energy & Green Tech
Aug 28, 2009 |
4.3 / 5 (17) |
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Double solar world record
(PhysOrg.com) -- A world record double by UNSW solar cell researchers promises to make solar power more affordable, with world-beating new technology delivering substantial efficiency gains at minimal extra ...
Technology / Energy & Green Tech
Jul 07, 2011 |
4.2 / 5 (15) |
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New kind of solar cell could capture significantly more energy than current cells
New solar cells could increase the maximum efficiency of solar panels by over 25%, according to scientists from the University of Cambridge.
Feb 08, 2012 |
4.3 / 5 (14) |
14
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Elusive 'hot' electrons captured in ultra-thin solar cells
Boston College researchers have observed the "hot electron" effect in a solar cell for the first time and successfully harvested the elusive charges using ultra-thin solar cells, opening a potential avenue to improved solar ...
Dec 11, 2009 |
4.5 / 5 (13) |
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Intel's single-chip cloud computer
(PhysOrg.com) -- Intel Labs has recently shown off a 48-core prototype chip it calls a "single-chip cloud computer" or SCC.
Feb 11, 2010 |
4.5 / 5 (13) |
6
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Researchers shine light on compact fluorescent bulb problems
Long touted as an energy-saving alternative for home lighting, compact fluorescent lightbulbs (CFLs) now have the potential to be even more efficient, as well as dimmable, thanks to research at Queen's University.
Apr 07, 2009 |
4.1 / 5 (14) |
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