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Saturday, May 31, 2014

Control methane now, greenhouse gas expert warns




Solar Energy News -- ScienceDaily





Control methane now, greenhouse gas expert warns



As the shale gas boom continues, the atmosphere receives more methane, adding to Earth’s greenhouse gas problem. A greenhouse gas expert and ecology and environmental biology professor fears that we may not be many years away from an environmental tipping point – and disaster. “Society needs to wean itself from the addiction to fossil fuels as quickly as possible,” he said. “But to replace some fossil fuels – coal, oil – with another, like natural gas, will not suffice as an approach to take on global warming. Rather, we should embrace the technologies of the 21st century and convert our energy systems to ones that rely on wind, solar and water power.”






ENERGY NEWS

Friday, May 30, 2014

Major advances in dye sensitized solar cells




Solar Energy News -- ScienceDaily





Major advances in dye sensitized solar cells



Two groups of researchers have recently advanced the field of solar cells with a cheaper and efficient replacement for platinum and better synthesis of zinc oxide. Working on dye-sensitized solar cells -- researchers in Malaysia have achieved an efficiency of 1.12%, at a fraction of the cost compared to those used by platinum devices.






ENERGY NEWS

Thursday, May 29, 2014

Managing renewable energy intelligently




Solar Energy News -- ScienceDaily





Managing renewable energy intelligently



Although more and more of our electrical energy is coming from sources where supply is variable – whether from wind turbines, solar parks or biomass facilities – grid structures, industry and private households alike are not yet prepared to deal with the inevitable fluctuations. Smart energy management systems are the way to put robust supply networks in place and to ensure that renewables are harnessed as efficiently as possible.






ENERGY NEWS

Wednesday, May 28, 2014

Hybrid energy transfer system mimics process responsible for photosynthesis




Solar Energy News -- ScienceDaily





Hybrid energy transfer system mimics process responsible for photosynthesis



Scientists have developed a new hybrid energy transfer system, which mimics the processes responsible for photosynthesis. From photosynthesis to respiration, the processes of light absorption and its transfer into energy represent elementary and essential reactions that occur in any biological living system. In a new study, researchers demonstrate an alternate non-radiative, intermolecular energy transfer that exploits the intermediating role of light confined in an optical cavity.






ENERGY NEWS

Tuesday, May 27, 2014

New way to filter light: May provide first directional selectivity for light waves




Solar Energy News -- ScienceDaily





New way to filter light: May provide first directional selectivity for light waves



Light waves can be defined by three fundamental characteristics: their color (or wavelength), polarization, and direction. While it has long been possible to selectively filter light according to its color or polarization, selectivity based on the direction of propagation has remained elusive. But now, for the first time, researchers have produced a system that allows light of any color to pass through only if it is coming from one specific angle; the technique reflects all light coming from other directions.






ENERGY NEWS

Attention California Homeowners


Here's something every California homeowner should know: you could get approved for low interest financing for energy efficiency and renewable energy upgrades, with no upfront costs, through the HERO program from PACE financing. Should you qualify, what would all this mean for you, long term? It would mean lower utility bills, a reduced carbon footprint, and long term savings that are a lot higher than you are probably thinking. You may not realize this, because it's not like you can see green fumes coming out of your home or anything, but all the electricity you use emits ozone damaging CO2 from the power plant and into the atmosphere, and contributes to global warming.

Let's take a look at PACE and HERO. PACE stands for Property Assessed Clean Energy financing, and it's, well, it's exactly what it sounds like. Participating municipal governments offer bonds to investors who set up loans for homeowners to finance the work done on their homes. Efficiency upgrades covered by PACE financing include air sealing and insulation to minimize wasted air conditioning, and solar panel installation. The program allows homeowners the option to lease their solar panels, so they only pay for the benefits of solar that they enjoy while still living in their home. Should a homeowner who has chosen the lease option sell their home, the new homeowner can either elect to take over payments or decline and have the solar panels taken off the grid.

PACE has now rolled out a financing program called the Home Energy Renovation Opportunity, or HERO for short. The HERO program is repaid directly through your property tax bill, in installments twice per year. Over 150,000 products are eligible for financing through HERO. Here's what's really unique about the HERO program: similar to your mortgage, the interest you pay is tax deductible. You still have to pay for the portion of the principle due with your statement, but your interest is a write-off. You deduct what you paid in interest from your stated annual income when you file your taxes. Also, it can be used in conjunction with rebate programs like Energy Upgrade California to save you even more money!

Mr. Ruben Contreras, the subject of this case study, saw his electric bill plummeted from $200 per month down to $1.21 per month after installing solar through The Hero Program. That's a projected savings of about $90,000 over the next 25 years. He was so elated with his savings that he recommended the program to his parents as well. If you want a more energy efficient home at no up front cost to you, check with your local government office to see if PACE and HERO can help in your area, and don't forget to get approved for additional savings through any rebate programs available. There's a lot of money available to you so don't be lazy, go out and claim it!

The programs only work with contractors who are verified and registered in its database. Zero Energy is one such contractor in Southern California, and they have helped hundreds of homeowners see real savings and feel more comfortable in their homes with help from these programs.
ENERGY NEWS

Monday, May 26, 2014

New understanding could result in more efficient organic solar cells




Solar Energy News -- ScienceDaily





New understanding could result in more efficient organic solar cells



The goal of making cheap organic solar cells may have gotten a little more approachable with a new understanding of the basic science of charge separation presented in a new paper. The research suggests design rules for making more efficient solar cells in the future.






ENERGY NEWS

Sunday, May 25, 2014

Win-win situation: Growing crops on photovoltaic farms




Solar Energy News -- ScienceDaily





Win-win situation: Growing crops on photovoltaic farms



A new model for solar farms that 'co-locates' crops and solar panels could result in a harvest of valuable biofuel plants along with solar energy. This co-location approach could prove especially useful in sunny, arid regions such as the southwestern United States where water is scarce, researchers said.






ENERGY NEWS

Saturday, May 24, 2014

Artificial photosynthesis: Key intermediate steps in artificial photosynthesis reaction identified




Solar Energy News -- ScienceDaily





Artificial photosynthesis: Key intermediate steps in artificial photosynthesis reaction identified



The first direct, temporally resolved observations of intermediate steps in water oxidation using cobalt oxide, an Earth-abundant solid catalyst, revealed kinetic bottlenecks whose elimination would help boost the efficiency of artificial photosynthesis systems.






ENERGY NEWS

Friday, May 23, 2014

House windows that double as solar panels? Shiny quantum dots brighten future of solar cells




Solar Energy News -- ScienceDaily





House windows that double as solar panels? Shiny quantum dots brighten future of solar cells



A house window that doubles as a solar panel could be on the horizon, thanks to recent quantum-dot work. Scientists have demonstrated that superior light-emitting properties of quantum dots can be applied in solar energy by helping more efficiently harvest sunlight.






ENERGY NEWS

Thursday, May 22, 2014

Planting the 'seeds' of solar technology in the home




Solar Energy News -- ScienceDaily





Planting the 'seeds' of solar technology in the home



In an effort to better understand what persuades people to buy photovoltaic (PV) systems for their homes, researchers are gathering data on consumer motivations that can feed sophisticated computer models and thus lead to greater use of solar energy.






ENERGY NEWS

Wednesday, May 21, 2014

Synthesized 'solar' jet fuel: Renewable kerosene from sunlight, water and carbon dioxide




Solar Energy News -- ScienceDaily





Synthesized 'solar' jet fuel: Renewable kerosene from sunlight, water and carbon dioxide



With the first ever production of synthesized "solar" jet fuel, the EU-funded SOLAR-JET project has successfully demonstrated the entire production chain for renewable kerosene obtained directly from sunlight, water and carbon dioxide, therein potentially revolutionizing the future of aviation. This process has also the potential to produce any other type of fuel for transport applications, such as diesel, gasoline or pure hydrogen in a more sustainable way.






ENERGY NEWS

Tuesday, May 20, 2014

Atomic switcheroo explains origins of thin-film solar cell mystery




Solar Energy News -- ScienceDaily





Atomic switcheroo explains origins of thin-film solar cell mystery



Treating cadmium-telluride (CdTe) solar cell materials with cadmium-chloride improves their efficiency, but researchers have not fully understood why.






ENERGY NEWS

Monday, May 19, 2014

Future computers that are normally off




Solar Energy News -- ScienceDaily





Future computers that are normally off



Researchers have broadly envisioned the future of spin-transfer torque magnetoresistive random access memory (STT-MRAM), and they have now described how it will radically alter computer architectures and consumer electronics.






ENERGY NEWS

Sunday, May 18, 2014

Self-powered wireless light detectors




Solar Energy News -- ScienceDaily





Self-powered wireless light detectors



A low-power photodetection system can harness enough energy to power an autonomous sensor and monitoring network.






ENERGY NEWS

Saturday, May 17, 2014

Promising news for producing fuels through artificial photosynthesis




Solar Energy News -- ScienceDaily





Promising news for producing fuels through artificial photosynthesis



There's promising news from the front on efforts to produce fuels through artificial photosynthesis. A new study shows that nearly 90 percent of the electrons generated by a hybrid material designed to store solar energy in hydrogen are being stored in the target hydrogen molecules.






ENERGY NEWS

Friday, May 16, 2014

Energy breakthrough uses sun to create solar energy materials




Solar Energy News -- ScienceDaily





Energy breakthrough uses sun to create solar energy materials



Researchers have discovered a way to tap the sun not only as a source of power, but also to directly produce the solar energy materials that make this possible. This breakthrough could make the sun almost a 'one-stop shop' that produces both the materials for solar devices and the eternal energy to power them.






ENERGY NEWS

Thursday, May 15, 2014

Taking the lead out of a promising solar cell: Environmentally friendly solar cell pushes forward the 'next big thing in photovoltaics'




Solar Energy News -- ScienceDaily





Taking the lead out of a promising solar cell: Environmentally friendly solar cell pushes forward the 'next big thing in photovoltaics'



Researchers have developed a solar cell with good efficiency that uses tin instead of lead perovskite as the harvester of light. The low-cost, environmentally friendly solar cell can be made easily using 'bench' chemistry -- no fancy equipment or hazardous materials. Perovskite solar cells are being touted as the 'next big thing in photovoltaics.' Lead perovskite has achieved 15 percent efficiency, and tin perovskite should be able to match -- and possibly surpass -- that.






ENERGY NEWS

Wednesday, May 14, 2014

Nanoelectronics key to advances in renewable energy




Solar Energy News -- ScienceDaily





Nanoelectronics key to advances in renewable energy



An electrical engineer explains why advances in nanoelectronics will shape the future of renewable energy technologies.






ENERGY NEWS

Tuesday, May 13, 2014

One good tern deserves another: Low-power, remote monitoring of island birds cuts bills




Solar Energy News -- ScienceDaily





One good tern deserves another: Low-power, remote monitoring of island birds cuts bills



A new report reveals details of an energy-efficient system for monitoring wild birds that reduces power consumption without significantly compromising image quality.






ENERGY NEWS

Monday, May 12, 2014

Cheap, environmentally-friendly method for making transparent conductive films for laptops, smartphones, solar cells




Solar Energy News -- ScienceDaily





Cheap, environmentally-friendly method for making transparent conductive films for laptops, smartphones, solar cells



Transparent conductive films are now an integral part of our everyday lives. Whether in smartphones, tablets, laptops, flat screens or (on a larger scale) in solar cells. Yet they are expensive and complex to manufacture. Now, researchers have succeeded in developing a method of producing such TCO films, as they are known, that is not only cheaper, but also simpler and more environmentally friendly.






ENERGY NEWS

Sunday, May 11, 2014

Higher solar-cell efficiency achieved with zinc-oxide coating




Solar Energy News -- ScienceDaily





Higher solar-cell efficiency achieved with zinc-oxide coating



Researchers have achieved 14-percent efficiency in a 9-millimeter-square solar cell made of gallium arsenide. It is the highest efficiency rating for a solar cell that size and made with that material.






ENERGY NEWS

Saturday, May 10, 2014

Quantum simulators developed to study inaccessible physical systems




Solar Energy News -- ScienceDaily





Quantum simulators developed to study inaccessible physical systems



Quantum simulators recreate the behavior on a microscopic scale of biological and quantum systems and even of particles moving at the speed of light. The exact knowledge of these systems will lead to applications ranging from more efficient photovoltaic cells to more specific drugs. Researchers are working on the design of several of these quantum simulators so they can study the dynamics of complex physical systems.






ENERGY NEWS

Friday, May 9, 2014

Rainbow-catching waveguide could revolutionize energy technologies




Solar Energy News -- ScienceDaily





Rainbow-catching waveguide could revolutionize energy technologies



By slowing and absorbing certain wavelengths of light, engineers open new possibilities in solar power, thermal energy recycling and stealth technology More efficient photovoltaic cells. Improved radar and stealth technology. A new way to recycle waste heat generated by machines into energy. All may be possible due to breakthrough photonics research.






ENERGY NEWS

Thursday, May 8, 2014

Solar-power device would use heat to enhance efficiency




Solar Energy News -- ScienceDaily





Solar-power device would use heat to enhance efficiency



A new approach to harvesting solar energy could improve efficiency by using sunlight to heat a high-temperature material whose infrared radiation would then be collected by a conventional photovoltaic cell. This technique could also make it easier to store the energy for later use, the researchers say.






ENERGY NEWS

Wednesday, May 7, 2014

Copper nanowires could become basis for new solar cells




Solar Energy News -- ScienceDaily





Copper nanowires could become basis for new solar cells



By looking at a piece of material in cross section, engineers discovered how copper sprouts grass-like nanowires that could one day be made into solar cells. The researchers worked with copper foil, a simple material similar to household aluminum foil. When most metals are heated, they form a thick metal oxide film. However, a few metals, such as copper, iron and zinc, grow grass-like structures known as nanowires, which are long, cylindrical structures a few hundred nanometers wide by many microns tall. They set out to determine how the nanowires grow.






ENERGY NEWS

Tuesday, May 6, 2014

Smart grids to help optimize utilization of power grids




Solar Energy News -- ScienceDaily





Smart grids to help optimize utilization of power grids



Germany's power grids are not yet well prepared for the current consequences of the country's Energiewende, wide fluctuations in the supply of electricity from renewable sources, which conflict with patterns of demand. Smart grids that manage electricity demand at the local -- microgrid -- level may help to reduce the transmission of electricity over long distances to balance regional over- and undersupply. In the GreenCom project, international partners from industry and research develop and evaluate such a "Smart Energy Management System".






ENERGY NEWS

Monday, May 5, 2014

Researchers improve performance of III-V nanowire solar cells on graphene




Solar Energy News -- ScienceDaily





Researchers improve performance of III-V nanowire solar cells on graphene



Researchers have achieved new levels of performance for seed-free and substrate-free arrays of nanowires from class of materials called III-V directly on graphene. These compound semiconductors hold particular promise for applications involving light, such as solar cells or lasers.






ENERGY NEWS

Sunday, May 4, 2014

Light-induced degradation in amorphous silicon thin film solar cells




Solar Energy News -- ScienceDaily





Light-induced degradation in amorphous silicon thin film solar cells



Researchers have taken a leap forward towards a deeper understanding of an undesired effect in thin film solar cells based on amorphous silicon -- one that has puzzled the scientific community for the last 40 years. The researchers were able to demonstrate that tiny voids within the silicon network are partly responsible for reducing solar cell efficiency by some 10 to 15 percent as soon as you start using them.






ENERGY NEWS

Saturday, May 3, 2014

Energy harvesting takes wing in merger of engineering and biology




Solar Energy News -- ScienceDaily





Energy harvesting takes wing in merger of engineering and biology



A bird flapping its wings or a fish’s deep dive may be pictures of nature in action, but in their elegant simplicity scientists see the complex challenges of merging technology with a biological system. The motion of animals could power small devices that allow biologists to collect information about behavior that eludes them under the limitations of current technology.






ENERGY NEWS

Friday, May 2, 2014

Understanding the functioning of a new type of solar cell




Solar Energy News -- ScienceDaily





Understanding the functioning of a new type of solar cell



Scientists have uncovered the mechanism by which novel, revolutionary solar cells based on lead iodide perovskite light-absorbing semiconductor transfer electrons along their surface. The finding shows these devices constitute a new type of solar cells and open the way to the design of photovoltaic converters with improved efficiency.






ENERGY NEWS

Thursday, May 1, 2014

Transparent, color solar cells fuse energy, beauty




Solar Energy News -- ScienceDaily





Transparent, color solar cells fuse energy, beauty



Colorful, see-through solar cells could one day be used to make stained-glass windows, decorations and even shades that turn the sun's energy into electricity.






ENERGY NEWS