Three-Dimensional Design Leads to Better Solar Cells
New Solar Panels Produced at Less Than $1 Per Watt Solar panels that cost less than $1 per watt to produce are on their way, as Colorado State University's new method for low-cost, high-efficiency solar panels looks set to begin mass production. The panels will be made by AVA Solar, and production should start towards the end of next year at a huge factory employing 500 people.The cost reduction comes from the new, continuous manufacturing process which uses cadmium telluride thin film rather than the more expensive crystalline silicon. Once manufactured, the cost to buyers could be brought down to $2 per watt, which is roughly half the current cost of solar panels. The process is also greener, with less wastage than previous systems.
HelioVolt: Solar Innovation Powering a Sustainable World
Within a few years, people in remote villages in the developing world may be able to make their own solar panels, at low cost, using otherwise worthless agricultural waste as their raw material. That’s the vision of MIT researcher Andreas Mershin, whose work appears this week in the open-access journal Scientific Reports. The work is an extension of a project begun eight years ago by Shuguang Zhang, a principal research scientist and associate director at MIT’s Center for Biomedical Engineering. Zhang was senior author of the new paper along with Michael Graetzel of Switzerland’s École Polytechnique Fédérale de Lausanne. Video: Melanie Gonick Harnessing nature’s solar cells
Photovoltaics Photovoltaic SUDI shade is an autonomous and mobile station in France that provides energy for electric vehicles using solar energy. Photovoltaics (PV) is a method of generating electrical power by converting solar radiation into direct current electricity using semiconductors that exhibit the photovoltaic effect. Photovoltaic power generation employs solar panels composed of a number of solar cells containing a photovoltaic material. Materials presently used for photovoltaics include monocrystalline silicon, polycrystalline silicon, amorphous silicon, cadmium telluride, and copper indium gallium selenide/sulfide. Due to the increased demand for renewable energy sources, the manufacturing of solar cells and photovoltaic arrays has advanced considerably in recent years.
Spin-cast quantum dot solar cell built by the Sargent Group at the University of Toronto. The metal disks on the front surface are the electrical connections to the layers below. Quantum dot solar cells are an emerging field in solar cell research that uses quantum dots as the absorbing photovoltaic material, as opposed to better-known bulk materials such as silicon, copper indium gallium selenide (CIGS) or CdTe. Quantum dots have bandgaps that are tunable across a wide range of energy levels by changing the quantum dot size. Quantum dot solar cell
Solar Power News Solar Energy Headlines Get solar news delivered by email: High-Tech Farm Aims to Reclaim Fukushima’s Contaminated Soil for Crops Inhabitat (Today) - Image © Shutterstock Construction has just begun on a futuristic farming project in Japan’s Fukushima prefecture.
Posted by Ryan Scott There are many new forms of green energy, but perhaps none as interesting as the Cool Earth Solar “Balloon.” Here’s the concept behind the design: An inflatable plastic thin-film balloon (solar concentrator) is created Upon inflation, the balloon focuses sunlight onto a photovoltaic cell held at its focal point The design produces 400 times the electricity that a solar cell would generate without the Cool Earth’s concentrator Cool Earth Solar: News Archive
Tamera - SolarVillage The physicist Jürgen Kleinwächter, our long-time friend and cooperation partner, is restructuring his business in partnership with a German industrial engineering company to focus on production of his inventions, and thereby closing his research and development workshop in Lörrach.
If you live anywhere in America other than the shores of the Pacific, you are probably sweating right now. A lot. And it's likely that the paint job and materials on your building's roof are making it worse. This Is Why We're Hot: Sun-Absorbing Black Roofs Need a Coat of White Paint - Cities
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Solar Power Rocks! Use Solar Energy to Power your Home, your Business, your LIFE!
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Government to slash subsidies for solar power
5 July 2011Last updated at 23:00 GMT By Nick Rosen Author and film-maker Zhu Gongshan's company GCL-Poly is now China's largest producer of polysilicon, the main material in solar panels There is little information in the public domain about energy company boss Zhu Gongshan - and one gets the impression he prefers it that way. While other billionaires invited me to their offices or even their homes, Zhu preferred to talk in a hotel suite hired solely for the occasion. Zhu, 53, is one of the Party Traditionalists, and is not secretive so much as modest - a trait much prized among a certain type of successful businessman in China today. His company GCL-Poly is now China's largest producer of polysilicon, the main material in solar panels, yet despite his $2 billion (£1.24 billion) fortune Zhu seemed uninterested in the luxury brands which motivate so many of the newly-successful Chinese. China's super-rich: Zhu Gongshan
Solar-power-plant company Ausra has released a paper claiming that solar-thermal electric technology can provide 90 percent of U.S. grid electricity, with enough left over to power a fleet of plug-in electric vehicles. The company estimates that such a changeover would eliminate 40 percent of the country’s greenhouse gas emissions with a land footprint of 9,600 square miles, about the size of Vermont (thanks, Kent). The key to the scenario, however, is developing the ability to store energy for 16 hours, thus creating a stable power source through cloudy periods and the night, a feat that has so far eluded engineers. Solar Company Says Its Tech Can Power 90 Percent of Grid and Cars | Wired Science
There are several solar power plants in the Mojave Desert which supply power to the electricity grid. Insolation (solar radiation) in the Mojave Desert is among the best available in the United States, and some significant population centers are located in the area. These plants can generally be built in a few years because solar plants are built almost entirely with modular, readily available materials. Solar Energy Generating Systems (SEGS) is the name given to nine solar power plants in the Mojave Desert which were built in the 1980s, the first commercial solar plant. These plants have a combined capacity of 354 megawatts (MW) making them the largest solar power installation in the world. Solar power plants in the Mojave Desert
Solar Panels Integrate Into Building Facade In Helsinki, Norway, Ruukki reports that it has developed what is believed to be the first photovoltaic system to be fully integrated into the facade of a building. This patented solar power system does not depend on the sun’s warmth, only its radiation (a key factor in cold climates). Ruuki designed this solar panel for applications in conjunction with commercial buildings, providing juice for the building’s needs and feeding excess back onto the grid. The company reports that this new technology is ”the most cost-effective way on the market to make a fully-glazed facade that generates energy from the sun.” image via Ruukki