Saturday, December 09, 2006

Solar cell breakthrough claimed


"With funding from the Department of Energy, Boeing-Spectrolab has managed to create a solar cell with 40.7% sunlight-to-energy conversion efficiency"

The solar cell represents "the highest efficiency level any photovoltaic device has ever achieved," according to David Lillington, president of Spectrolab. That claim has been verified by the DOE's National Renewable Energy Laboratory in Golden, Colo.

Most of today's solar cells are between 12% and 18% efficient. Some of the ones used to power satellites are around 28% efficient. In 1954, 4% efficiency was state of the art.

In October, Google said it planned to install 9,200 solar photovoltaic panels at its Mountain View headquarters in 2007. Google's solar panels, made by Sharp, are 12.8% efficient. It expects to generate 30% of its peak energy usage during the summer from solar power.


Source: EETimes

http://www.eetimes.com/showArticle.jhtml?articleID=196602149

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