One of the most promising technologies for making inexpensive but reasonably efficient photovoltaic cells just got much cheaper. Scientists in Canada have shown that inexpensive nickel can work just as well as gold for one of the critical electrical contacts that gather the electrical current produced by colloidal quantum dot solar cells.
Researchers in Hawaii say that the Leeward side of Hawaiian Islands may be ideal for future ocean-based renewable energy plants based on a technology referred to as Ocean Thermal Energy Conversion (OTEC), which is described in the Journal of Renewable and Sustainable Energy.
By embedding the element selenium in zinc oxide, a team at the Lawrence Berkeley National Laboratory in California has made a relatively inexpensive material that could be promising for solar power conversion by making more efficient use of the sun's energy. They describe their work in the journal Applied Physics Letters.
In the quest for efficient, cost-effective and commercially viable fuel cells, scientists at Cornell University's Energy Materials Center have discovered a catalyst and catalyst-support combination that could make fuel cells more stable, conk-out free, inexpensive and more resistant to carbon monoxide poisoning.
U.S. military operations to protect oil imports coming from the Middle East are creating larger amounts of greenhouse gas emissions than once thought, new research from the University of Nebraska-Lincoln shows.
Researchers have demonstrated a relatively simple regeneration technique that could utilize waste steam to remove carbon dioxide from solid amine materials used to capture the greenhouse gas from the flue gases of coal-burning facilities. This steam-stripping technique could produce concentrated carbon dioxide ready for sequestration.
Scientists compile field studies across U.S. to identify influences on biomass yield.
As federal legislators and regulators consider taxing utility companies for carbon emissions, a new UC Berkeley study suggests a fixed pricing structure on natural gas service that would protect consumers and satisfy utility companies.
Using ever-growing genome data, scientists with the Department of Energy's (DOE) Oak Ridge National Laboratory and the University of Tennessee are tracing the evolution of the bacterial regulatory system that controls cellular motility, potentially giving researchers a method for predicting important cellular functions that will impact both medical and biotechnology research.
Wind turbines may be one of the best renewable energy solutions, but as turbines get larger they also get noisier, become more of an eyesore, and require increasingly larger expanses of land. One solution: ocean-based wind turbines. While offshore turbines already have been constructed, they've traditionally been situated in shallow waters, where the tower extends directly into the seabed. That restricts the turbines to near-shore waters with depths no greater than 50 meters -- and precludes their use in deeper waters, where winds generally gust at higher speeds.
Making better solar cells: Cornell University researchers have discovered a simple process - employing molecules typically used in blue jean and ink dyes - for building an organic framework that could lead to economical, flexible and versatile solar cells.
A new green, bio-based method for producing a much-used fuel additive and industrial chemical that is currently made from petroleum products has been developed by Iowa State University researcher Thomas Bobik.
Two scientists in India have conceptually designed a new, cleaner motorcycle engine that uses compressed air to turn a small air turbine, generating enough power to run a motorcycle for up to 40 minutes. Their design is described in a recent issue of the Journal of Renewable and Sustainable Energy.
Researchers at Rensselaer Polytechnic Institute have developed a simple new method for producing large quantities of the promising nanomaterial graphene. The new technique works at room temperature, needs little processing, and paves the way for cost-effective mass production of graphene.
University of Maryland, Baltimore researchers discovered that cyanobacteria possess a natural light-dependent electrogenic activity. The bacteria can generate and transfer high-energy electrons--generate electricity--to the external environment under illumination.
A research team at the DOE Great Lakes Bioenergy Research Center (GLBRC) has developed a powerful new tool that promises to unlock the secrets of biomass degradation, a critical step in the development of cost-effective cellulosic biofuels. The details of this method were published online on June 11 in the journal Applied and Environmental Microbiology.
As of today (Wednesday, June 9), if all the oil from the Deepwater Horizon spill in the Gulf of Mexico had been used for fuel, it could have powered 38,000 cars, and 3,400 trucks, and 1,800 ships for a full year, according to University of Delaware Prof. James J. Corbett. He has launched a website (http://www.ceoe.udel.edu/getinvolved/oilSpill.aspx) that reports the impact of the Deepwater Horizon oil spill in terms of lost uses of the lost fuel on a daily basis.
If battery-making is an art, then University at Buffalo scientist Esther Takeuchi is among its most prolific masters, with more than 140 U.S. patents, all in energy storage. Now Takeuchi is applying to the electrical grid -- the vast, national network that delivers energy from suppliers to consumers -- her unique perspective on how to coax the best performance out of battery chemicals.
A new way to make valuable chemicals and green biofuels from solar power, bacteria and CO2 may be "truly transformative" if it works on a larger scale, says Derek Lovley, head of a group developing carbon neutral microbial electrosynthesis. It also solves a major problem of solar energy: Storage.
Scientists at the Department of Energy's Oak Ridge National Laboratory are improving strains of microorganisms used to convert cellulosic biomass into ethanol, including a recent modification that could improve the efficiency of the conversion process.
Scientists at the Nuclear Science and Technology Division of the U.S. Department of Energy's Oak Ridge National Laboratory (ORNL) are merging decades of nuclear energy and safety expertise with high-performance computing to effectively address a range of nuclear energy- and security-related challenges.
Student researchers at Northeastern University have designed an apparatus to convert plastic waste into clean energy without releasing harmful emissions.
Biofuel combustion chemistry more complex than petroleum-based fuels, say Sandia and Lawrence Livermore researchers.
Iowa State University engineers are developing new and improved poles to carry electricity across the countryside. They say the new structures -- which can bend and deflect an extreme load -- would be cheaper, easier to install, more secure and more resistant to cascading failures. That means better electrical service for everybody.
Algae--already being eyed for biofuel production--could be put to use right away to remove nitrogen and phosphorus in livestock manure runoff, according to an Agricultural Research Service (ARS) scientist.