Solar Energy News
Solar Energy Information. Read the latest news and techniques for efficient solar photovoltaic power, new solar energy systems and more.
Updated: 3 hours 29 sec ago
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.
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.
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.
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?
Consider water use in climate change policies: Energy efficient technologies can also save water at the same time
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.
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.
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.
'Big data' is playing an increasingly big role in the renewable energy industry and the transformation of the nation's electrical grid.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Lithium-ion battery-based energy storage systems have already demonstrated efficiency and reliability in commercial electric vehicles. These high standards now also have to be transferred to battery-based storage systems for private photovoltaics facilities.