Monday, December 8, 2014

Converts Over 40% of Incoming Sunlight Into Electricity

The rapid advances, coming from around the world, in alternative energy sources would have already been here and advancing further if we hadn't allowed the special interests, fossil fuel corporations and their political tools, to control the blocking of over the past forty plus years!

UNSW researchers set world record in solar energy efficiency
December 7, 2014 - Solar researchers working at the University of New South Wales (UNSW) claim to have produced a system that converts over 40 percent of incoming sunlight into electricity, thereby taking the title of highest solar efficiency for a photovoltaic system ever reported.

The researchers first achieved their record efficiency in indoor tests in a facility in Sydney, Australia, and then had these achievements duplicated and ratified by the National Renewable Energy Laboratory (NREL) using an outdoor test facility in the United States.

"This is the highest efficiency ever reported for sunlight conversion into electricity," said UNSW Professor Professor Martin Green, Director of the Australian Centre for Advanced Photovoltaics (ACAP).

The record was achieved using a combination of technologies, including heliostat mirror "power tower" concentrators from Australian company RayGen Resources and high-efficiency photovoltaic (PV) cells from Boeing subsidiary, Spectrolab, but the key component to achieving such a high-efficiency was in the use of a specifically-designed optical bandpass filter used to reject certain components of the light spectrum whilst improving the capture of others. read more>>>

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