• Night vision for bird- & bat-friendly offshore wind power

    The same technology that enables soldiers to see in the dark can also help protect birds and bats near offshore wind turbines.

    Night vision goggles use thermal imaging, which captures infrared light that's invisible to the human eye. Now, researchers at the Department of Energy's Pacific Northwest National Laboratory are using thermal imaging to help birds and bats near offshore wind farms. PNNL is developing software called ThermalTracker to automatically categorize birds and bats in thermal video. Birds and bats fly over offshore waters, but they're difficult to track in such remote locations.

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  • RAVAN CubeSat Measures Earth's Outgoing Energy

    An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth’s climate.

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  • Power-to-Liquid: 200 Liters of Fuel from Solar Power and the Air's Carbon Dioxide

    Production of liquid fuels from regenerative electric power is a major component of the energy turnaround. The first 200 l of synthetic fuel have now been produced from solar energy and the air’s carbon dioxide by Fischer-Tropsch synthesis under the SOLETAIR project. Here, INERATEC, a spinoff of Karlsruhe Institute of Technology (KIT), cooperates with Finnish partners. The mobile chemical pilot plant that can be used decentrally produces gasoline, diesel, and kerosene from regenerative hydrogen and carbon dioxide. It is so compact that it fits into a shipping container.

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  • Virginia Tech researchers discover potentially harmful airborne nanoparticles produced through burning of coal

    Environmental scientists led by the Virginia Tech College of Science have discovered that the burning of coal produces incredibly small particles of a highly unusual form of titanium oxide.

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  • Annual Wind Power Report Confirms Technology Advancements, Improved Project Performance, and Low Wind Energy Prices

    Wind energy pricing for land-based, utility-scale projects remains attractive to utility and commercial purchasers, according to an annual report released by the U.S. Department of Energy and prepared by the Lawrence Berkeley National Laboratory (Berkeley Lab). Prices offered by newly built wind projects in the United States are averaging around 2¢/kWh, driven lower by technology advancements and cost reductions.

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  • Distributed wind power keeps spinning, growing

    Both businesses and homeowners are increasingly using distributed wind power thanks to innovative business models and other trends, according to a new report released today.

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  • Study finds that Choice of Cool Roofing Materials can Potentially Impact Region's Air Pollution

    In a groundbreaking study released today, scientists at the South Coast Air Quality Management District and the University of Southern California have found that widespread installation of certain “cool roof” materials in the region could slightly increase ozone and fine particulate pollution levels.

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  • Vertical Axis Wind Turbines Can Offer Cheaper Electricity for Urban and Suburban Areas

    According to a prediction made by the U.S. Department of Energy, wind energy could provide 20 percent of electricity in the U.S. by the year 2030. This has motivated researchers from the University of Utah’s Department of Mechanical Engineering to investigate the performance capabilities and financial benefits of vertical axis wind turbines (VAWTs) in urban and suburban areas. 

    A VAWT is a wind turbine design where the generator is vertically oriented in the tower, rather than sitting horizontally on top. While there are many VAWT designs, the one used in this study is called the straight-blade Darrieus type or H-rotor turbine.

    According to the researchers, small VAWTs possess the ability to effectively operate in the presence of high turbulent flow, which makes them ideal energy harvesting devices in urban and suburban environments. In an article in this week’s Journal of Renewable and Sustainable Energy, from AIP Publishing, the authors present results indicating that an optimally designed VAWT system can financially compete with fossil-fuel based power plants in urban and suburban areas, and even spearhead the development of a net-zero energy building or city. 

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  • Simultaneous Design and Nanomanufacturing Speeds Up Fabrication

    Design and nanomanufacturing have collided inside of a Northwestern University laboratory.

    An interdisciplinary team of researchers has used mathematics and machine learning to design an optimal material for light management in solar cells, then fabricated the nanostructured surfaces simultaneously with a new nanomanufacturing technique.

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  • Carbon Conversion

    Chemists have figured out a new, more efficient way to create carbon-based fuels from carbon dioxide (CO2). In chemical reactions performed in the lab, a Caltech team has identified a new additive that helps selectively convert CO2 into fuels containing multiple carbon atoms—a step toward ultimately making renewable liquid fuels that are not derived from coal or oil.

    "The results were quite shocking," says Jonas Peters, Bren Professor of Chemistry at Caltech and director of the Resnick Sustainability Institute, who jointly led the research in collaboration with Theodor Agapie, professor of chemistry at Caltech. "Usually, in these types of reactions with CO2, you see a lot of by-products like methane and hydrogen. In this case, the reaction was highly selective for the more desirable fuels that contain multiple carbons—such as ethylene, ethanol, and propanol. We saw an 80 percent conversion to these multi-carbon fuel products, with only 20 percent or so going into hydrogen and methane."

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