Solar Cells
Manufacturing of high-efficiency bi-facial tandem concentrator solar cells: February 20, 2009-August 20, 2010
U.S. Government (Paperback) Books LLC, Reference Series 2011-10-05
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Answers
I'm considering installing an on-grid full solar array for our home and was wondering about ROI of solar concentrators and solar tracking systems as opposed to a solar array simply mounted to our home's roof.
I'm aware of the costs, tax...
You might want to check out this website.
It will cost you a pretty penny to have one installed. Make sure your home roof is designed for it.
Good luck.
Solartron Energy Systems Inc. has created the SolarBeam Concentrator is the word's first affordable parabolic solar concentrator for thermal ...
I want to build a parabolic solar concentrator for the production of photovoltaic energy.
It's possible to use the normal single crystal solar cell with a concentration of 40 sun and one heat dissipation system, or I must search special...
It's possible, but you need to avoid the cell reach high temperatures, for this applications AsGa cells are much better than silicium(Si) cells, because AsGa are more efficient and are much less disturbed by high temperatures(but they need cooling...
Very high efficiency, a cell the size of a dime makes about 40w of power in direct sunlight. No water needed, and way less land than bigger, less efficient panels.
http://emcore.com/solar_photovoltaics/te...
Is there a worse technology?
This 2 axis solar tracker is expensive and with so many moving parts, would be subject to breaking down. Cleaning maintenance is harder than conventional PV arrays.
If you want 40W of...
Buy Cheap
SunPower picks up French solar company, sells bigger stake to majority stockholder
SunPower ( SPWRA ) will buy French solar provider Tenesol for $165.4 million, the San Jose solar manufacturer announced Friday, and offset the cost by selling a new offering of stock to its majority stockholder and Tenesol's parent company, Total.
SunPower, which has weathered the solar-energy storm that claimed Solyndra by offering solar panels with higher efficiency than those made in China and elsewhere, inherits a company that has operations in 18 countries, along with manufacturing facilities in France and South Africa.
Once the deal is complete, French oil giant Total -- which purchased 60 percent of SunPower earlier this year for $1.38 billion -- will extend its investment in the Silicon Valley company, purchasing a private offering of 18.6 million shares for $8.80 apiece, a 50 percent premium over SunPower's stock price at Thursday's closing. The stock sale will bring SunPower $163.7 million, nearly the same amount it will pay for Tenesol, and give Total a 66 percent stake in the San Jose company.
Building a Much Lower Cost Solar Cell | New Energy and Fuel
Jason Karp an electrical engineering Ph.D. student at the University of California, San Diego and his colleagues at the UC San Diego Jacobs School of Engineering are developing an inexpensive optical concentrator and assembly to offset the high cost of very efficient solar cells. The development should lead to solar concentrators that are less expensive and require fewer photovoltaic cells than existing solar concentrators or photovoltaic solar cell panels.
The design is an optical innovation. After the surface lenses focuses the light with a two-dimensional lens array a secondary optic, multimode slab waveguide is used as a secondary to collect and homogenize the sunlight.
Reflective facets fabricated on the backside of the waveguide act as fold mirrors to couple sunlight into the waveguide at angles, which exceed the critical angle for total internal reflection. These facets occupy a small fraction of the total waveguide surface and enable high geometric concentrations despite decoupling loss if light strikes a subsequent coupling region.
...News
IQE's 6 Inch semiconductor wafers for making high efficiency solar PV cellsEE Herald - May 12, 2010
UK based IQE plc has developed epitaxial processes for producing high efficiency, triple junction concentrator photovoltaic (CPV) solar cells withVentureBeat - May 11, 2010
After all, that's why companies like NanoSolar, Innovalight and Solyndra are all working on their own thin-film and printed solar cell solutions.
MarketWatch (press release) - May 10, 2010
For terrestrial applications, EMCORE is adapting its high-efficiency GaAs solar cells for use in solar concentrator systems. For further information aboutMarketWatch (press release) - Apr 30, 2010
"Quantum dot-polymer and other QD impregnated materials have the promise of increasing the efficiency and power generated from traditional solar cells.Nanotechwire.com - May 11, 2010
Shrink Solar's fifth generation solar concentrator has achieved higher efficiencies than previous generations of energy producing cells.