If you picture a solar panel, it’s most likely dark blue or black, and rigid and flat. Now imagine one that’s semi-transparent, ultra-thin and bendable. Scientists are closing in on making the latter version a reality. They report in ACS Applied Materials & Interfaces the development of a see-through, bendable solar cell made entirely out of plastic. The device could help power the coming wave of flexible electronics.
“Hydraulic fracturing” (or fracking) and “environmentally friendly” often do not appear in the...
Home efficiency measures such as installing new windows or replacing insulation deliver such a...
Two of our nation's most advanced wind energy research and test facilities have joined forces to...
Electric buses are an eco-friendly alternative to diesel. With several project partners, Fraunhofer researchers have developed a concept to swiftly recharge buses while they operate routes. System testing in Dresden has been underway since November last year.
Stanford Univ. scientists have created a new carbon material that significantly boosts the performance of energy-storage technologies. Their results are featured in ACS Central Science. The new "designer carbon" is both versatile and controllable and represents a dramatic improvement over conventional activated carbon.
GE Launches the Next Evolution of Wind Energy Making Renewables More Efficient, Economic: the Digital Wind FarmMay 19, 2015 11:49 am | by GE | News | Comments
GE has announced the launch of its Digital Wind Farm, a dynamic, connected and adaptable wind energy ecosystem that pairs world-class turbines with the digital infrastructure for the wind industry. The technology boosts a wind farm’s energy production by up to 20 percent and could help generate up to an estimated $50 billion of value for the wind industry.
Electricity generation and distribution infrastructure in the Western United States must be “climate-proofed” to diminish the risk of future power shortages, according to research by two Arizona State University engineers. Expected increases in extreme heat and drought events will bring changes in precipitation, air and water temperatures, air density and humidity.
Just as alchemists always dreamed of turning common metal into gold, their 19th century physicist counterparts dreamed of efficiently turning heat into electricity, a field called thermoelectrics. Such scientists had long known that, in conducting materials, the flow of energy in the form of heat is accompanied by a flow of electrons.
Stanford Univ. scientists have solved a long-standing mystery about methanogens, unique microorganisms that transform electricity and carbon dioxide into methane. In a new study, the Stanford team demonstrates for the first time how methanogens obtain electrons from solid surfaces. The discovery could help scientists design electrodes for microbial "factories" that produce methane gas and other compounds sustainably.
Researchers from Wake Forest Univ. and the Univ. of Utah are the first to successfully fabricate halide organic-inorganic hybrid perovskite field-effect transistors and measure their electrical characteristics at room temperature. The team designed the structure of these field-effect transistors to achieve electrostatic gating of these materials and determine directly their electrical properties.
Engineering researchers have invented a novel electrical power converter system that simultaneously accepts power from a variety of energy sources and converts it for use in the electrical grid system. Innovations in this field are critical as the U.S. moves toward integration of renewable energy sources to the national power grid.
A patented passive cooling system for computer processors that's undergoing optimization could save U.S. consumers more than $6.3 billion per year in energy costs associated with running their computer cooling fans. Imagine what it could do if in global use.
In the four years following the 2008 recession, the coal industry lost more than 49,000 jobs, while the natural gas, solar and wind industries together created nearly four times that amount, according to a new Duke Univ. study. A county-by-county geographical analysis of the losses and gains shows that few new jobs were added in regions hardest hit by coal’s decline, particularly counties in southern West Virginia and eastern Kentucky.
Solar panels, wind turbines, electric vehicles and other power sources are proliferating rapidly, but their reliable integration into the existing electric grid is another story. A new study offers a comprehensive reimagining of the power grid that involves the coordinated integration of small-scale distributed energy resources. The study, asserts that the proliferation of renewable energy must happen at the periphery of the power grid.
How many researchers does it take to change a light bulb? And how many lives could they save by changing it? The answer to both questions is larger than you might expect. In the developing world, light bulbs might as well be insect magnets. The light they emit, particularly the blue wavelengths of LED lights, is attractive to a range of insects, drawing them out from the night and straight to people's homes.
The editors of R&D Magazine have announced an eligibility extension for products to be entered into the 2015 R&D 100 Awards. The 2015 R&D 100 Awards will honor products, technologies and services that have been introduced to the market between January 1, 2014 and March 31, 2015.
Green wall technology and semi-transparent solar panels have been combined to generate electrical current from a renewable source of energy both day and night. A prototype “green bus shelter” that could eventually generate enough electricity to light itself, has been built by a collaboration of university researchers and eco-companies.
Lawrence Livermore National Laboratory researchers have identified electrical charge-induced changes in the structure and bonding of graphitic carbon electrodes that may one day affect the way energy is stored. The research could lead to an improvement in the capacity and efficiency of electrical energy storage systems needed to meet the burgeoning demands of consumer, industrial and green technologies.
Generating electricity from biomass, such as urban waste and sustainably sourced forest and crop residues, is one strategy for reducing greenhouse gas emissions, because it is carbon-neutral: It produces as much carbon as the plants suck out of the atmosphere.
Efficiency is big in the tiny world of thermoelectric nanowires. Researchers at Sandia National Laboratories say better materials and manufacturing techniques for the nanowires could allow carmakers to harvest power from the heat wasted by exhaust systems or lead to more efficient devices to cool computer chips.
Windows allow brilliant natural light to stream into homes and buildings. Along with light comes heat that, in warm weather, we often counter with energy-consuming air conditioning. Now scientists are developing a new kind of "smart window" that can block out heat when the outside temperatures rise. The advance could one day help consumers better conserve energy on hot days and reduce electric bills.
One challenge in improving the efficiency of solar cells is some of the absorbed light energy is lost as heat. So scientists have been looking to design materials that can convert more of that energy into useful electricity. Now a team from Brookhaven National Laboratory and Columbia Univ. has paired up polymers that recover some of that lost energy by producing two electrical charge carriers per unit of light instead of the usual one.
Scientists at Univ. College London, in collaboration with groups at the Univ. of Bath and the Daresbury Laboratory, have uncovered the mystery of why blue light-emitting diodes (LEDs) are so difficult to make, by revealing the complex properties of their main component—gallium nitride—using sophisticated computer simulations.
People who own all-electric cars where coal generates the power may think they are helping the environment. But a new study finds their vehicles actually make the air dirtier, worsening global warming. Ethanol isn't so green, either. The study examines environmental costs for cars' entire lifecycle, including where power comes from and the environmental effects of building batteries.
Scientists are developing a new kind of “smart window” that can block out heat when the outside temperatures rise. The advance could one day help consumers better conserve energy on hot days and reduce electric bills.
The use of renewable energy in the U.S. could take a significant leap forward with improved storage technologies or more efforts to “match” different forms of alternative energy systems that provide an overall more steady flow of electricity. Historically, a major drawback to the use and cost-effectiveness of alternative energy systems has been that they are too variable. This lack of dependability is costly and inefficient.
Univ. of Utah engineers developed the first room-temperature fuel cell that uses enzymes to help jet fuel produce electricity without needing to ignite the fuel. These new fuel cells can be used to power portable electronics, off-grid power and sensors. A study of the new cells appears online in ACS Catalysis.
When Oak Ridge National Laboratory researcher Yan Xu talks about “islanding,” or isolating, from the grid, she’s discussing a fundamental benefit of microgrids—small systems powered by renewables and energy storage devices. The benefit is that microgrids can disconnect from larger utility grids and continue to provide power locally.
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