A new global wind power map has quantified global wind power and may help planners place turbines in locations that can maximize power from the winds and provide widely available low-cost energy. After analyzing more than 8,000 wind speed measurements in an effort to identify the worlds wind power potential for the first time, Cristina Archer and Mark Jacobson of Stanford University suggest that wind captured at specific locations, if even partially harnessed, can generate more than enough power to satisfy the worlds energy demands. Their report will be published in May in the Journal of Geophysical Research-Atmospheres, a publication of the American Geophysical Union.
The researchers collected wind speed measurements from approximately 7,500 surface stations and another 500 balloon-launch stations to determine global wind speeds at 80 meters [300 feet] above the ground surface, which is the hub height of modern wind turbines. Using a new interpolation technique to estimate the wind speed at that elevation, the authors report that nearly 13 percent of the stations they reviewed experience winds with an average annual speed strong enough for power generation. They note that, based on their expectations of other global areas, an even greater percentage of locations would likely reach the 6.9 meters per second [15 miles per hour] wind speed considered strong enough to be economically feasible.
Such wind speeds at 80 meters, referred to as wind power Class 3, were found in every region of the world, although North America was found to have the greatest wind power potential. The researchers also found that some of the strongest winds were observed in Northern Europe, along the North Sea, while the southern tip of South America and the Australian island of Tasmania also recorded significant and sustained strong winds at the turbine blade height. In North America, the most consistent winds were found in the Great Lakes region and from ocean breezes along the eastern, western and southern coasts. Overall, the researchers calculated winds at 80 meters [300 feet] traveled over the ocean at approximately 8.6 meters per second and at nearly 4.5 meters per second over land [20 and 10 miles per hour, respectively].
Harvey Leifert | EurekAlert!
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Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!
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For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.
Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems Holding GmbH about commercial use of a multi-well tissue plate for automated and reliable tissue engineering & drug testing.
MBM ScienceBridge GmbH successfully negotiated a license agreement between University Medical Center Göttingen (UMG) and the biotech company Tissue Systems...
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Scientists from the MPI for Chemical Energy Conversion report in the first issue of the new journal JOULE.
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