Wind Power
Looking at Atmospheric Stability to Predict Wind Power
Posted in Wind Power, Energy Efficiency, Renewable Energy, News on
Tuesday, January 24 2012
Power generated by a wind turbine largely depends on wind speed. In a wind farm in which the turbines experience the same wind speeds but different shapes, such as turbulence, to the wind profile, a turbine will produce different amounts of power. Two researchers say that this variable power can be predicted by looking at atmospheric stability.
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Superconducting Current Limiter
Posted in Power Management, Solar Power, Wind Power, Renewable Energy, Energy, News on
Friday, January 13 2012
A new superconducting current limiter based on YBCO strip conductors has been installed at a power plant. At the Boxberg power plant of the Swedish company Vattenfall, the current limiter protects the grid for own consumption that is designed for 12,000 volts and 800 amperes against damage due to short circuits and voltage peaks.
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Atlas Maps Renewable Energy Resources
Posted in Software, Biomass, Geothermal Power, Solar Power, Wind Power, Renewable Energy, Hydroelectric Power, News on
Monday, January 09 2012
A new geospatial application developed by the DOE’s National Renewable Energy Laboratory (NREL) allows users to map potential renewable energy resources in the United States. The interactive tool is called RE Atlas, and is free to use and available online.
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How Terrain and Turbine Placement Affect Wind Energy Production
Posted in Wind Power, Energy Efficiency, Renewable Energy, News on
Monday, December 12 2011
A miniature turbine measuring just 10 inches high is helping a research team led by Hui Hu - an Iowa State University associate professor of aerospace engineering - understand how hills, valleys, and the placement of turbines affect the productivity of onshore wind farms.
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Efficient IGBTs
Posted in Products, Alternative Fuels, Green Design & Manufacturing, Solar Power, Wind Power, Energy Efficiency, Energy, GDM on
Friday, October 28 2011
Powerex (Youngwood, PA) has introduced IGBTs from 300A/1200V - 800A/1200V in conventional packages, allowing users an easy upgrade path for increased system ratings and/or improved reliability due to the increased allowable operating junction temperature. Applications include motor drives, fuel cells, and wind and solar inverters.
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Novel Catalyst Helps Turn Carbon Dioxide Into Fuel
Posted in News, Alternative Fuels, Green Design & Manufacturing, Greenhouse Gases, Biomass, Energy Storage, Solar Power, Wind Power, Energy Efficiency, Renewable Energy, Energy, GDM on
Friday, October 07 2011
Artificial photosynthesis is the process of converting carbon dioxide gas into useful carbon-based chemicals - most notably fuel or other compounds usually derived from petroleum - as an alternative to extracting them from biomass. An Illinois research team has produced a catalyst that improves the process.
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Wind Inverter
Posted in Products, Solar Power, Wind Power, Energy Efficiency, Renewable Energy, Energy, GDM on
Tuesday, September 20 2011
Smart Power Systems, Inc. (Baltimore, MD) has developed a 25-kW single-phase bi-directional inverter. The SPS-Pavan 25 features minimum harmonic point tracking to reduce harmonic distortion and a unity power factor operation while drawing or supplying power into a single-phase grid.
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