29 Dec '12, 1pm

WHO NEEDS OFFSHORE OIL WHEN THE SUN SHINES 24/7 ? - NEW RECORD SET IN SOLAR CELL EFFICIENCY Friday, Dec. 28, 2012

WHO NEEDS OFFSHORE OIL WHEN THE SUN SHINES 24/7 ? - NEW RECORD SET IN SOLAR CELL EFFICIENCY Friday, Dec. 28, 2012

Award-Winning PV Cell Pushes Efficiency Higher December 28, 2012 Enlarge image An operator inspects a photolithography tool used to manufacture high-efficiency Solar Junction concentrator solar cells. NREL's pioneering multijunction work led to the Solar Junction SJ3 solar cell with tunable bandgaps, lattice-matched architecture, and ultra-concentrated tunnel junctions. Credit: Daniel Derkacs/Solar Junction It takes outside-the-box thinking to outsmart the solar spectrum and set a world record for solar cell efficiency. The solar spectrum has boundaries and immutable rules. No matter how much solar cell manufacturers want to bend those rules, they can't. So how can we make a solar cell that has a higher efficiency than the rules allow? That's the question scientists in the III-V Multijunction Photovoltaics Group at the U.S. Department of Energy's (DOE) National Renewable E...

Full article: http://www.nrel.gov/news/features/feature_detail.cfm/feat...

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New World Record Set for Solar Cells: 44% Efficiency

New World Record Set for Solar Cells: 44% Effic...

treehugger.com 28 Dec '12, 7pm

© Daniel Derkacs/Solar Junction The National Renewable Energy Laboratory (NREL), and their industry partner Solar Junction...

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Solar Cell Efficiency and the “Black Hole for L...

solarfeeds.com 29 Dec '12, 7pm

Researchers at Princeton University led by electrical engineer Stephen Chou, have developed what is being called a “nanost...

Solar PV Efficiency Record Broken (Now 44%), Thanks To NREL & Solar Junction

Solar PV Efficiency Record Broken (Now 44%), Th...

cleantechnica.com 30 Dec '12, 4pm

This behavior sets a fundamental limit on the efficiency of a conventional solar cell. Scientists overcome this limitation...

Award-Winning PV Cell Pushes Efficiency Higher

Award-Winning PV Cell Pushes Efficiency Higher

renewableenergyworld.com 02 Jan '13, 6pm

So how can we make a solar cell that has a higher efficiency than the rules allow? That's the question scientists in the I...

Nanomaterials that Split Sunlight Into Separate Colors Could Bring Solar Panels to 50% Efficiency

Nanomaterials that Split Sunlight Into Separate...

treehugger.com 28 Dec '12, 9pm

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ase.org 05 Jan '13, 11pm

Take Action NOW Urge Congress to reinstate home energy efficiency tax incentives that put money back into consumers’ pocke...

Charge a nickel-cadmium cell reliably and inexpensively - #Electronics #Engineering #Design

Charge a nickel-cadmium cell reliably and inexp...

edn.com 30 Dec '12, 5pm

Most NiCd cells can be charged at two significantly different charge currents: either a fast charge with a high current or...

NREL: News - Concentrated Solar Power with Ther...

nrel.gov 23 Dec '12, 2pm

News Release NR-5012 Concentrated Solar Power with Thermal Energy Storage Can Help Utilities’ Bottom Line, Study Shows Dec...

China's Oil Demand Hits Record High in November...

elsexenio.com 25 Dec '12, 8pm

Domestic Refinery Runs Also at Record High Volumes SINGAPORE, Dec. 25, 2012 /PRNewswire/ -- China's apparent oil demand* r...

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cleantechnica.com 27 Dec '12, 9pm

Energy efficiency represents the biggest potential to cut consumer costs and reduce power demand – one report has found Am...

Dismantling the Barriers to Energy Efficiency

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greenbiz.com 27 Dec '12, 5pm

Elizabeth Turnbull manages energy and environmental projects for the adidas Group Corporate Real Estate team. She builds t...

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Green Roofs Improve Solar Panel Efficiency - Ne...

Green roofs are known to extend roof life, conserve energy, and reduce stormwater runoff and air pollution; new studies sh...