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Sandia, Stirling Energy Systems set new world record for solar-to-grid conversion efficiency
02-13-2008 · EurekAlert!Sandia National Laboratories and Stirling Energy Systems have set a new solar-to-grid system conversion efficiency record by achieving a 31.25 percent net efficiency rate. The old 1984 record of 29.4 percent was toppled Jan. 31 on SES's "Serial #3" solar dish Stirling system at Sandia's National Solar Thermal Test Facility.
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Keywords: sandia, stirling, energy, systems, set, world, record, solar-to-grid, conversion, efficiency, system, solar, grid
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- Researchers develop darkest manmade material
01-22-2008 · EurekAlert!
Researchers at Rensselaer Polytechnic Institute and Rice University have created the darkest material ever made by man. The material, a thin coating comprised of low-density arrays of loosely vertically-aligned carbon nanotubes, absorbs more than 99.9 percent of light and one day could be used to boost the effectiveness and efficiency of solar energy conversion, infrared sensors and other devices. The researchers who developed the material have applied for a Guinness World Record for their efforts.
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- Audio Spot: Oak Ridge reactor sets neutron world record
11-29-2007 · Oak Ridge National Laboratory (ORNL)
The High Flux Isotope Reactor (HFIR) at the Department of Energy's Oak Ridge National Laboratory has set a world record for concentration of cold neutrons that are used to study materials.
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- Solar energy conversion offers a solution to help mitigate global warming
03-06-2007 · EurekAlert!
Solar energy has the power to reduce greenhouse gases and provide increased energy efficiency, says a scientist at the US Department of Energy's Argonne National Laboratory, in a report (view it online) published in the March issue of Physics Today. Last month, The Intergovernmental Panel on Climate Change (IPCC) of the United Nations released a report confirming global warming is upon us and attributing the growing threat to the man-made burning of fossil fuels.
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- Philips patents TU Eindhoven's energy return system
01-24-2008 · EurekAlert!
An increasing number of private individuals supply their excess energy, from external energy sources (windmills and solar cells), to the electricity grid and only take energy from the grid when necessary. Dutch-sponsored researcher Haimin Tao examined how this externally generated energy can be better stored and transferred. Philips has acquired a patent for a part of the system.
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- Quantum secrets of photosynthesis revealed
04-12-2007 · EurekAlert!
The mystery of how Nature, through photosynthesis, is able to transfer solar energy through molecular systems with nearly 100-percent efficiency appears to have been solved. A study led by researchers with the U.S. Department of Energy's Lawrence Berkeley National Laboratory and the University of California at Berkeley reports that the answer lies in quantum mechanical effects.
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- Plastic solar cell efficiency breaks record at Wake Forest Nanotechnology Center
04-19-2007 · EurekAlert!
Researchers at Wake Forest University's Center for Nanotechnology and Molecular Materials have doubled the efficiency of organic or flexible, plastic solar cells in just two years. The new record set at Wake Forest is more than 6 percent efficiency.
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- Sandia invention to make parabolic trough solar collector systems more energy efficient
05-15-2007 · EurekAlert!
A mirror alignment measurement device invented by a Sandia National Laboratories researcher may soon make one of the most popular solar collector systems, parabolic troughs, more affordable and energy efficient.
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- Solar cells can take the heat
01-09-2008 · EurekAlert!
Michael Grдtzel and his a team of researchers at the Ecole Polytechnique Federale de Lausanne in Switzerland have fabricated a solvent-free dye-sensitized solar cell based on a binary ionic liquid electrolyte. These devices show a light-conversion efficiency of 7.6 percent under simulated sunlight conditions, which sets a new record for a solvent-free device.
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- Alarming acceleration in CO2 emissions worldwide
05-21-2007 · EurekAlert!
Between 2000 and 2004, worldwide CO2 emissions increased at a rate that is over three times the rate during all of the 1990s. The accelerating growth rate is largely due to the increasing energy intensity of economic activity and the carbon intensity of the energy system, with increases in population and in per-capita gross domestic product. The increases in energy and carbon intensity constitute a reversal of a long-term trend toward greater energy efficiency and reduced carbon intensities.
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- Working Toward New Energy With Electrochemistry
08-20-2007 · Brookhaven National Laboratory
In an effort to develop alternative energy sources such as fuel cells and solar fuel from "artificial" photosynthesis, scientists at the U.S. Department of Energy's Brookhaven National Laboratory are taking a detailed look at electrons - the particles that set almost all chemical processes in motion.
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