Roughly 20 percent of the electricity consumed worldwide is used to light homes, businesses, and other private and public spaces. Though this consumption represents a large drain on resources, it also presents a tremendous opportunity for savings. Improving the efficiency of commercially available light bulbs -- even a little -- could translate into dramatically lower energy usage if implemented widely.
Weizmann Institute scientists have identified a new mode of bond generation between oxygen atoms. This work is a step toward development of an efficient artificial catalyst for solar-driven splitting of water into oxygen and hydrogen, which is a major goal of renewable, clean energy research.
Chemists are reporting development of what they termed the first economical, eco-friendly process to convert algae oil into biodiesel fuel "" a discovery they predict could one day lead to U.S. independence from petroleum as a fuel. The study is scheduled for presentation in March at the 237th National Meeting of the American Chemical Society.
A team of scientists from Virginia Commonwealth University, the University of Uppsala in Sweden, and the Savannah River National Laboratory have identified that carbon nanostructures can be used as catalysts to store and release hydrogen, a finding that may point researchers toward developing the right material for hydrogen storage for use in cars.
In the future, natural gas derived from chunks of ice that workers collect from beneath the ocean floor and beneath the arctic permafrost may fuel cars, heat homes, and power factories. Government researchers are reporting that these so-called "gas hydrates," a frozen form of natural gas, show increasing promise as an abundant, untapped source of clean, sustainable energy. The study is scheduled for presentation in March at the national meeting of the American Chemical Society.
Kansas State University biologists are working with a researcher in Ghana to create biodiesel from the seeds of trees that are common and well adapted to the climate of northern Ghana.
The process to turn propane into industrially necessary propylene has been expensive and environmentally unfriendly. That was until scientists at U.S. Department of Energy's Argonne National Laboratory devised a greener way to take this important step in chemical catalysis.
The creation of long platinum nanowires at the University of Rochester could soon lead to the development of commercially viable fuel cells by providing significant increases in both the longevity and efficiency. Nanowire enhanced fuel cells could power many types of vehicles, helping reduce the use of petroleum fuels for transportation.
Researchers from Iowa State University, Frontline BioEnergy and Hawkeye Energy Holdings are using a $2.37 million grant from the Iowa Power Fund to develop new burner and catalyst technologies. The technologies will use gas made from biomass to efficiently produce ethanol and provide clean, renewable power for heating and drying equipment.
A team of researchers at Penn State has come up with an ingenious method of turning captured CO2 into methane using the energy of the sun.
Ethanol production used less than 5% of the nation's corn in 1990-91 but used as much as 24% in 2007-08. South Dakota, one of the top five ethanol producing states, used 60% of corn grown in that year affecting availability of corn for feed and exports.
Millions of homes in rural areas of Far Eastern countries are heated by charcoal burned on small, hibachi-style portable grills. Scientists in Japan are now reporting development of an improved "biomass charcoal combustion heater" that they say could open a new era in sustainable and ultra-high efficiency home heating.
Taking a chemical approach, researchers at the University of Wisconsin-Madison have developed a two-step method to convert the cellulose in raw biomass into a promising biofuel. The process, which is described in the Wednesday, Feb. 11 issue of the Journal of the American Chemical Society, is unprecedented in its use of untreated, inedible biomass as the starting material.
An in-depth study by Sandia National Laboratories and General Motors Corp. has found that plant and forestry waste and dedicated energy crops could sustainably replace nearly a third of gasoline use by the year 2030.
The ultrafine coal particles that are the residue of the coal cleaning process have been discarded into hundreds of impoundments. Now, a dewatering technology developed at Virginia Tech has succeeded in reducing the moisture content of ultrafine coal to less than 20 percent.
Firing bolts of lightning at expensive electrical equipment is all in a day's work at NEETRAC "" the National Electric Energy Testing Research and Applications Center. The goal for the lightning research and other testing done by the center is to improve reliability for the nation's electric energy transmission and distribution system.
Solarmer Energy Inc. is developing plastic solar cells for portable electronic devices that will incorporate technology invented at the University of Chicago. The company is on track to complete a commercial-grade prototype later this year.
Global yields of most biofuels crops, including corn, rapeseed and wheat, have been overestimated by 100 to 150 percent or more, suggesting many countries need to reset their expectations of agricultural biofuels to a more realistic level.
NIST researchers have developed a method to accelerate stability testing of biodiesel fuel made from soybeans and identified additives that enhance stability at high temperatures, work that could help overcome a key barrier to the practical use of biofuels.
Researchers at Rensselaer Polytechnic Institute have developed and demonstrated a new type of light emitting diode (LED) with significantly improved lighting performance and energy efficiency. The new polarization-matched LED exhibits an 18 percent increase in light output and a 22 percent increase in wall-plug efficiency.
The push for alternative energy has created a large demand for corn stover, a popular feedstock used to produce cellulosic ethanol, but utilizing these materials, rather than using it as compost, means a loss of soil organic carbon. Researchers have studied the effectiveness of alternative carbon augmentation practices and have reported positive results, as detailed in the November-December 2008 issue of Agronomy Journal.
Low-moving ocean and river currents could be a new, reliable and affordable alternative energy source. A University of Michigan engineer has made a machine that works like a fish to turn potentially destructive vibrations in fluid flows into clean, renewable power.
An Auburn University study sheds new light on just how valuable shade trees are in reducing homeowners' electricity bills during hot summer months.
With the high cost of gasoline and diesel fuel impacting costs for automobiles, trucks, buses and the overall economy, a simple device that attaches to a vehicle's fuel line near the fuel injector and creates an electrical field could boost gas efficiency as much as 20 percent.
A giant perennial grass used as a biofuels source has a much longer growing season than corn, and researchers think they've found the secret of its success. Their findings offer a promising avenue for developing cold-tolerant corn, an advance that would significantly boost per-acre yields.