New Solar Power Efficiency Record – 44 Percent!

As the US sets up guidelines for siting new solar farms and plants,  the efficiency of their building blocks in converting solar energy to electricity continues to increase.  Eric Wesoff of GreentechSolar reports that Solar Junction,  a US producer of solar cells, recently created a new, compound triple junction solar cell with a record-breaking efficiency of 44 percent, verified by the federal National Renewable Energy Laboratory. Triple junction cells absorb light efficiently at 3 different light wavelengths, which, under the concentrated sunlight conditions of a thermal plant, allow them to boost solar efficiency well beyond the theoretical limit of 34% for traditional solar cells.  Company co-founder Vijit Sabnis sites several studies showing 70 percent theoretical efficiencies from a 5- or 6-junction cell. More practically, he sees 50 percent cell efficiency as being achievable in three to five years, which could boost the efficiency of the DC modules in solar farms, which convert solar energy into electricity, to 40 percent.  The hope is that these more efficient compound solar cells can improve the economics of concentrated photovoltaics.

 

Join the swelling numbers of voters TELLING Congress they’ll vote for Clean Energy candidates here: http://signon.org/sign/we-are-the-clean-99?source=c.em.cp&r_by=487176 then please – spread the word. This is how YOU can make a difference.

Source

Record 44 Percent CPV Efficiency From Startup Solar Junction
Eric Wesoff – October 15, 2012  http://www.greentechmedia.com/articles/read/Record-44-Percent-CPV-Efficiency-From-Startup-Solar-Junction/

 

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About melharte

Mel (Mary Ellen) Harte is a biologist (PhD) and climate change educator. She co-authored the free online book, COOL THE EARTH, SAVE THE ECONOMY, available at www.CoolTheEarth.US, and writes the CLIMATE CHANGE THIS WEEK column at the HuffingtonPost. Living summers in the alpine Rockies, she is on the frontlines of watching what climate change can do. Her diagnostic digital photographs of wildflowers have appeared in numerous publications.
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