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GreenEnergy
How to power California with wind, water and sun - http://www.sciencedaily.com/release...
How to power California with wind, water and sun
New research outlines the path to a possible future for California in which renewable energy creates a healthier environment, generates jobs and stabilizes energy prices.
GreenEnergy
Spinach could lead to alternative energy more powerful than Popeye - http://www.sciencedaily.com/release...
Spinach could lead to alternative energy more powerful than Popeye
Spinach gave Popeye super strength, but it also holds the promise of a different power for a group of scientists: the ability to convert sunlight into a clean, efficient alternative fuel. Physicists are using spinach to study the proteins involved in photosynthesis, the process by which plants convert the sun's energy into carbohydrates used to power cellular processes. Artificial photosynthesis could allow for the conversion of solar energy into renewable, environmentally friendly hydrogen-based fuels.
GreenEnergy
Self-cooling solar cells boost power, last longer - http://www.sciencedaily.com/release...
Self-cooling solar cells boost power, last longer
Scientists may have overcome one of the major hurdles in developing high-efficiency, long-lasting solar cells -- keeping them cool, even in the blistering heat of the noonday sun. By adding a specially patterned layer of silica glass to the surface of ordinary solar cells, a team of researchers has found a way to let solar cells cool themselves by shepherding away unwanted thermal radiation.
GreenEnergy
Seals forage at offshore wind farms - http://www.sciencedaily.com/release...
Seals forage at offshore wind farms
By using sophisticated GPS tracking to monitor seals' every movement, researchers have shown for the first time that some individual seals are repeatedly drawn to offshore wind farms and pipelines. Those human-made structures probably serve as artificial reefs and attractive hunting grounds, according to a study.
GreenEnergy
Cheap, highly efficient solar cells: A new stable and cost-cutting type of perovskite solar cell - http://www.sciencedaily.com/release...
Cheap, highly efficient solar cells: A new stable and cost-cutting type of perovskite solar cell
Scientists have made a very efficient perovskite solar cell that does not require a hole-conducting layer. The novel photovoltaic achieved energy conversion efficiency of 12.8 percent and was stable for over 1000 hours under full sunlight. The innovation is expected to significantly reduce the cost of these promising solar cells.
GreenEnergy
Fires are major cause of wind farm failure, according to new research - http://www.sciencedaily.com/release...
Fire is the second leading cause of accidents in wind turbines, after blade failure, according to research. Wind farming is one of the leading industries in the renewable energy sector. However, the industry faces a number of challenges, such as opposition by wind farm lobbyists. Today's research suggests that incidents of wind turbines catching fire are a big problem that is not currently being fully reported.
GreenEnergy
Deep within spinach leaves, vibrations enhance efficiency of photosynthesis - http://www.sciencedaily.com/release...
Deep within spinach leaves, vibrations enhance efficiency of photosynthesis
Biophysics researchers have used short pulses of light to peer into the mechanics of photosynthesis and illuminate the role that molecule vibrations play in the energy conversion process that powers life on our planet.
GreenEnergy
Solar energy gets a boost: 'Singlet fission' can increase solar cell efficiency by as much as 30 percent - http://www.sciencedaily.com/release...
Solar energy gets a boost: 'Singlet fission' can increase solar cell efficiency by as much as 30 percent
Scientists have reviewed chemists' work on "singlet fission," a process in which a single photon generates a pair of excited states. This conversion process has the potential to boost solar cell efficiency by as much as 30 percent.
GreenEnergy
Solar cells: Powered by nanoholes - http://www.sciencedaily.com/release...
Increasing the cost-effectiveness of photovoltaic devices is critical to making these renewable energy sources competitive with traditional fossil fuels. One possibility is to use hybrid solar cells that combine silicon nanowires with low-cost, photoresponsive polymers. A simple and inexpensive fabrication procedure boosts the light-capturing capabilities of tiny holes carved into silicon wafers.
GreenEnergy
Orgainic solar modules embedded in glass last longer - http://www.sciencedaily.com/release...
Orgainic solar modules embedded in glass last longer
Organic solar modules have advantages over silicon solar cells. However, one critical problem is their shorter operating life. Researchers are working on a promising solution: they are using flexible glass as a carrier substrate that better protects the components.
GreenEnergy
Monitoring neighborhood electricity consumption over 24 hour cycle - http://www.sciencedaily.com/release...
Monitoring neighborhood electricity consumption over 24 hour cycle
With more and more households owning one or even two electric cars requiring charging overnight, how will we manage it without sacrificing our hot morning shower and fresh bread for breakfast? This is the headache now facing the electricity supply companies. But this isn’t their only problem. What use is it to those homeowners, who have installed a modest solar panel system on their roofs, when the sun is heating the pavement in the middle of the day and no one is at home to use the energy?
GreenEnergy
Consider water use in climate change policies: Energy efficient technologies can also save water at the same time - http://www.sciencedaily.com/release...
There’s more to trying to slow down climate change than just cutting greenhouse gas emissions. Technology, policies or plans that aim to do so should also take environmental factors such as water usage into account. A more integrated approach might make some options considerably more attractive than others, especially when implemented in arid countries such as Australia.
GreenEnergy
Net-zero energy test house exceeds goal; ends year with energy to spare - http://www.sciencedaily.com/release...
Net-zero energy test house exceeds goal; ends year with energy to spare
The NIST net-zero energy test house in suburban Washington, D.C., not only absorbed winter's best shot, it came out on top, reaching its one-year anniversary on July 1 with enough surplus energy to power an electric car for about 1,440 miles.
GreenEnergy
Solar panels light the way from carbon dioxide to fuel - http://www.sciencedaily.com/release...
Solar panels light the way from carbon dioxide to fuel
Researchers have devised an efficient method for harnessing sunlight to convert carbon dioxide into a potential alternative fuel known as formic acid. The transformation from carbon dioxide and water to formic acid was powered by a commercial solar panel.
GreenEnergy
Supercomputer tackles grid challenges - http://www.sciencedaily.com/release...
Supercomputer tackles grid challenges
'Big data' is playing an increasingly big role in the renewable energy industry and the transformation of the nation's electrical grid.
GreenEnergy
Scientists discover how 'plastic' solar panels work - http://www.sciencedaily.com/release...
Scientists discover how 'plastic' solar panels work
Scientists don't fully understand how 'plastic' solar panels work, which complicates the improvement of their cost efficiency, thereby blocking the wider use of the technology. However, researchers have determined how light beams excite the chemicals in solar panels, enabling them to produce charge.
GreenEnergy
Cheap and enviromentally friendly: Tofu ingredient could revolutionize solar panel manufacture - http://www.sciencedaily.com/release...
Cheap and enviromentally friendly: Tofu ingredient could revolutionize solar panel manufacture
The chemical used to make tofu and bath salts could also replace a highly toxic and expensive substance used to make solar cells, a new study has revealed. Cadmium chloride is currently a key ingredient in solar cell technology used in millions of solar panels around the world. This soluble compound is highly toxic and expensive to produce, requiring elaborate safety measures to protect workers during manufacture and then specialist disposal when panels are no longer needed.
GreenEnergy
Scientists create new battery that's cheap, clean, rechargeable ... and organic - http://www.sciencedaily.com/release...
Scientists create new battery that's cheap, clean, rechargeable ... and organic
Scientists have developed a rechargeable battery that is all organic and could be scaled up easily for use in power plants where it can make the energy grid more resilient and efficient by creating a large-scale means to store energy for use as needed. The batteries could pave the way for renewable energy sources to make up a greater share of the nation's energy generation.
GreenEnergy
Alternative energy evaluation: Net energy analysis should become a standard policy tool, scientists say - http://www.sciencedaily.com/release...
Alternative energy evaluation: Net energy analysis should become a standard policy tool, scientists say
To be viable, wind farms, power plants and other energy technologies should deliver more energy than they consume. Net energy analysis allows researchers to evaluate the long-term sustainability of a technology by comparing how much energy it produces over its lifetime with the energy required to build and maintain it, say scientists.
GreenEnergy
NOAA GOES-R satellite black wing ready for flight - http://www.sciencedaily.com/release...
NOAA GOES-R satellite black wing ready for flight
The solar array that will provide power to NOAA's GOES-R satellite has been tested, approved and shipped to a facility where it will be incorporated on the spacecraft. The five sections of the solar array come together as one to resemble a giant black wing.
GreenEnergy
New study uses blizzard to measure wind turbine airflow - http://www.sciencedaily.com/release...
New study uses blizzard to measure wind turbine airflow
A first-of-its-kind study using snow during a Minnesota blizzard is giving researchers new insight into the airflow around large wind turbines. This research is essential to improving wind energy efficiency, especially in wind farms where airflows from many large wind turbines interact with each other.
GreenEnergy
Concentrating solar power: Study shows greater potential - http://www.sciencedaily.com/release...
Concentrating solar power could supply a large fraction of the power supply in a decarbonized energy system, shows a new study of the technology and its potential practical application.
GreenEnergy
Safe water for the people in Tanzania - http://www.sciencedaily.com/release...
Hydraulic engineers and photovoltaics experts have developed a solar filtration system to produce high-quality drinking water from polluted brackish water and tested it successfully in Tanzania. The test results are currently being analyzed. The filter effectively separates undesired substances, bacteria, and viruses.
GreenEnergy
Q&A: To Solve The Water Problem, We Need To Solve Energy - http://www.popsci.com/article...
Flickr/Geeta Nambiar Within policy circles, people often bandy about the term “water-energy nexus.” Like most wonk-speak, it’s a rather complex way to express a simple relationship. Energy production requires a tremendous amount of water, almost on par with irrigated agriculture. And water production needs a lot of energy, for pumping, treating, and transportation. They’re interdependent. And therein lies the problem. We asked the U.S. Department of Energy’s Michael Knotek, the deputy under secretary for science and energy and a scientist himself, how to plan for a future in which we’ll demand a lot of both. Why worry about the water-energy nexus anyway? If you look around the world, the water-energy nexus is the first thing foreign governments talk about, particularly in developing countries. Over the next 40 years, we’re going to have a growing population and an evolving climate system. So we’ll be facing, almost in real time, a continually evolving set of challenges. That could...
GreenEnergy
Hunt for extraterrestrial life gets massive methane boost - http://www.sciencedaily.com/release...
A powerful new model to detect life on planets outside of our solar system more accurately than ever before has been developed by researchers. The new model focuses on methane, the simplest organic molecule, widely acknowledged to be a sign of potential life. The new model has been tested and verified by successfully reproducing in detail the way in which the methane in failed stars, called brown dwarfs, absorbs light.
GreenEnergy
Wind turbine payback: Environmental lifecycle assessment of 2-megawatt wind turbines - http://www.sciencedaily.com/release...
Researchers have carried out an environmental lifecycle assessment of 2-megawatt wind turbines mooted for a large wind farm in the U.S. Pacific Northwest. They conclude that in terms of cumulative energy payback, or the time to produce the amount of energy required of production and installation, a wind turbine with a working life of 20 years will offer a net benefit within five to eight months of being brought online.
GreenEnergy
Up to 6-cent per kilowatt-hour extra value with concentrated solar power - http://www.sciencedaily.com/release...
Concentrating Solar Power (CSP) projects would add additional value of 5 or 6 cents per kilowatt hour to utility-scale solar energy in California where 33 percent renewables will be mandated in six years, a new report has found.
GreenEnergy
Technology using microwave heating may impact electronics manufacturing - http://www.sciencedaily.com/release...
A continuous flow reactor can produce high-quality nanoparticles by using microwave-assisted heating -- essentially the same forces that heat up leftover food with such efficiency. This may finally make it possible for this technology to move into large scale manufacturing and usher in an electronics revolution.
GreenEnergy
Sopcawind, a multidisciplinary tool for designing wind farms - http://www.sciencedaily.com/release...
The SOPCAWIND tool is a piece of software that facilitates the design of wind farms, bearing in mind not only the aspects of energy productivity but also the possible impact the wind farm may have on the environment, radars or other telecommunications systems in the vicinity. It also assesses acoustic noise, the effect of shadow on nearby housing, and applies criteria for heritage protection or clearance from transport networks and certain facilities.
GreenEnergy
New class of nanoparticle brings cheaper, lighter solar cells outdoors - http://www.sciencedaily.com/release...
New class of nanoparticle brings cheaper, lighter solar cells outdoors
A new class of solar-sensitive nanoparticle that outshines the current state of the art has been developed and tested by researchers. This new form of solid, stable light-sensitive nanoparticles, called colloidal quantum dots, could lead to cheaper and more flexible solar cells, as well as better gas sensors, infrared lasers, infrared light emitting diodes and more.
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