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Search results for “Wind Energy”

1,000+ results for "Wind Energy"

Solar energy to get boost from cutting-edge forecasts

Researchers at NCAR are creating a prototype system to forecast sunlight and resulting power every 15 minutes, enabling utilities to continuously anticipate available solar energy. The project aims to improve cloud prediction accuracy, helping utilities tap into solar energy more effectively and reducing dependence on fossil fuels.

Spotting the invisible cracks in wind turbines

Researchers developed a new analytical method to detect fatigue in wind turbines' parts while the turbine is in operation. This method distinguishes between mechanical properties and interfering noise, enabling precise detection of material fatigue or untightened screws.

SourceSpringer·JournalThe European Physical Journal B·DateFeb 12, 2013

Greener storage for green energy

A team of Harvard engineers and chemists are working on a one-year, $600,000 grant from ARPA-E to develop a new type of storage battery that uses eco-friendly small organic molecules. The technology aims to make stationary energy storage cost-effective, enabling wind and solar power to displace fossil fuels more widely.

Wind power's potential

Researchers calculated wind power potential worldwide, accounting for climate impacts and found it exceeds global energy demands. The maximum theoretical potential is over 250 terawatts globally and 80 TW over land and ocean areas.

SourceUniversity of Delaware·JournalProceedings of the National Academy of Sciences·DateSep 10, 2012

Lawrence Livermore researchers find wind power not enough to affect global climate

Large-scale high altitude wind power generation is unlikely to substantially affect climate, according to a Lawrence Livermore National Laboratory study. The researchers found that wind turbines could extract kinetic energy at a rate of at least 400 terawatts on the surface and over 1800 terawatts in high-altitude winds.

SourceDOE/Lawrence Livermore National Laboratory·JournalNature Climate Change·DateSep 10, 2012

Turbulences at a standstill

Theoretical physicist Dima Shepelyansky found that energy flows from large to small scales can be prevented under specific conditions, similar to the way electron currents are stopped in disordered solids. This discovery links chaos theory and turbulence, highlighting a phenomenon where energy threshold plays a crucial role.

SourceSpringer·JournalThe European Physical Journal B·DateJul 27, 2012

Making 'renewable' viable

Researchers from Drexel University have developed a novel electrochemical flow capacitor that combines the strengths of batteries and supercapacitors, addressing scalability issues. The technology allows for rapid charging and discharging ability, enabling efficient storage and delivery of renewable energy.

SourceDrexel University·JournalAdvanced Energy Materials·DateJul 11, 2012

Electric moon jolts the solar wind

Scientists have discovered that the moon's presence affects the solar wind, creating turbulence and changes in direction and density. Computer simulations explain this phenomenon by showing an electric field near the lunar surface generated by sunlight and solar wind flow.

SourceNASA/Goddard Space Flight Center·JournalGeophysical Research Letters·DateMay 30, 2012

Reducing cash bite of wind power

Harold H. Kung's analysis finds Investment Tax Credit to be more attractive for consumers and investors due to lower electricity prices and faster returns on investment. The study aimed to mitigate the high capital cost of wind power, benefiting both parties.

SourceNorthwestern University·JournalEnergy Policy·DateMar 29, 2012

Wind turbines that learn like humans

Researchers developed a biologically inspired control system that uses memory of past control experiences and outcomes to generate new actions. This approach shows promise for enhancing wind power conversion efficiency, outperforming traditional methods in simulations.

SourceAmerican Institute of Physics·JournalJournal of Renewable and Sustainable Energy·DateMar 27, 2012

Wind energy enhancement: UC research establishes real-world wind turbine performance metrics

University of Cincinnati researchers have developed predictive software to analyze two years' worth of operating data from a commercial wind turbine, identifying key components with high failure rates and average downtime. The study aims to establish real-world performance metrics for turbines, enabling optimal scheduling of maintenanc...

SourceUniversity of Cincinnati·JournalJournal of Renewable Energy·DateMar 26, 2012

First study to measure value of marine spatial planning

A new study shows that incorporating multiple stakeholder interests in comprehensive ocean planning reduces conflict and enhances cultural, conservation, and economic benefits. The study found that designing offshore wind farms with multiple ocean users in mind can prevent losses to incumbent fishery and whale watching sectors while ge...

SourceCommunication Partnership for Science and the Sea·JournalProceedings of the National Academy of Sciences·DateMar 5, 2012

Power generation is blowing in the wind

Researchers found that power generated at a set wind speed is higher under stable conditions and lower under strongly unsteady conditions. Wind shear plays an important role in assessing turbine efficiency. The team's study provides valuable insights for better estimating power generation, especially when including atmospheric stabilit...

SourceDOE/Lawrence Livermore National Laboratory·JournalEnvironmental Research Letters·DateJan 17, 2012

NCAR wind forecasts save millions of dollars for Xcel Energy

The NCAR wind forecasting system has improved the accuracy of wind energy forecasts by 35%, allowing Xcel Energy to harness wind more effectively and save ratepayers millions of dollars yearly. The system uses cutting-edge computer models and real-time observations to provide high-resolution forecasts, updated every 15 minutes.

New energy in search for future wind

A new study from CSIRO Australia has found that Australia's average wind speed is increasing, contrary to recent international studies showing a decrease. The research provides valuable insights into the causes of variations in near-surface wind and long-term wind speed trends over Australia.

SourceCSIRO Australia·JournalJournal of Climate·DateSep 26, 2011