GREEN REVOLUTION: WIND POWER

submitted by: nsf
Kathryn Johnson, an electrical engineer at the Colorado School of Mines, studies large utility-scale wind turbines. Kathryn’s research aims to make the turbines more efficient in order to capture as much of the wind’s energy as possible. We also visited NSF’s National Center for Atmospheric Research, where scientists are working with local utility companies to create an advanced wind energy prediction system. Using data from sensors mounted on each turbine, the system generates a...

GREEN REVOLUTION: SOLAR POWER

submitted by: nsf
Arizona gets plenty of sunlight, and researchers there are working hard to turn that energy into electricity we can use. At Arizona State University, graduate student Brad Brennan makes and tests new materials that will allow us to build smaller, cheaper, flexible photovoltaic solar cells that can go almost anywhere. Brittany Lynn, a student at the University of Arizona, has been testing solar cells with different surfaces to see how surface shape affects the energy production of the cells.

GREEN REVOLUTION: MICROBES

submitted by: nsf
In Bruce Logan's lab at Penn State Univeristy, researchers are working on developing microbial fuel cells (MFC) that can generate electricity I while accomplishing wastewater treatment. In a project supported by NSF, they are researching methods to increase power generation from MFCs while at the same time recovering more of the energy as electricity. Through their research projects, Logan’s team has already proven that they can produce electricity from ordinary domestic wastewater, as...

GREEN REVOLUTION: HYDROGEN

submitted by: nsf
Host Lisa Van Pay meets with NSF-funded scientists Yang-Shao Horn and Yogi Surendranath at the Massachusetts Institute of Technology as they take on the hydrogen energy challenge. Hydrogen bonds are an extremely efficient way to store energy, and scientists would like to capture this energy to power all sorts of things—from cars to laptops. Unlike other fuel sources, hydrogen can’t be harvested easily, so we have to make it. From the importance of developing an effective catalyst to...

GREEN REVOLUTION: GREEN ROOFS

submitted by: nsf
A green roof can certainly make a building look nicer, but can it measurable lower energyrequirements and improve water management? Engineer Jelena Srebric and horticulturist Rob Berghage are working on a project to measure and model how a green roof affects the way buildings use energy and water. In the lab, Tyler Meek does weather experiments indoors to determine the effects of light, wind and water on the roof. Paulo Tabares Velasco works to make a mathematical model to predict what will...

Can Renewables Provide Big Energy in America's Electric Future?

submitted by: RASEIBoulder
Renewable energy sources currently provide about only about 10% of the nation’s electricity, with most of that coming from large hydro sources. Renewable energy sources are scattered around the country, with much of the best wind and solar resources located in remote locations. These sources also may have a big footprint compared to conventional sources. Finally, solar and wind are often described as intermittent due to their variable and uncertain output. As a consequence, it is often...

Liquid Crystal Based Variable Light Attenuation for Switchable Solar Heat Gain Coefficient Application

submitted by: RASEIBoulder
Energy loss through the windows remains a dominant obstacle in obtaining zero-energy buildings. In particular, for mixed climate environments, the solar heat gain coefficient of a window must be switchable to control the amount of solar heating in the winter and summer seasons. Furthermore, it is desirable for the system not to consume energy from the grid and operate in an autonomous way. Finally, the system must be scalable and cost effective to retrofit existing windows. In this talk, we...

Feasibility Of Predominant Wind And Solar Energy Over The 48 United States

submitted by: RASEIBoulder
It is widely believed that wind and solar power are too variable in time to supply a large percentage of energy needs. This perception is based on wind and solar energy production over small domains, but is it true for a large domain? A study was conducted to determine the resource availability of wind and solar energy over the 48 US states. A meteorological assimilation model was used to estimate hourly wind and solar resources for three years – 2006 through 2008. Geographic data were...

Mary Neu delivers "Los Alamos National Laboratory Overview"

submitted by: JGI

Mary Neu, Associate Director for Chemistry, Life and Earth Sciences at Los Alamos National Laboratory, delivers opening remarks at the "Sequencing, Finishing, Analysis in the Future" meeting in Santa Fe, NM on June 2, 2010.

Urban Power USA

submitted by: Garajan

Presentation about an innovative, low cost wind turbine using alternative aerodynamic principles to create electricity in urban, ocean, and other low or high wind environments.