20 Apr '17, 12pm

National Lab Recaptures Record for Solar Hydrogen Production

National Lab Recaptures Record for Solar Hydrogen Production

The U.S. Department of Energy's National Renewable Energy Laboratory (NREL) last week said that its scientists have recaptured the record for highest efficiency in solar hydrogen production via a photoelectrochemical (PEC) water-splitting process. The new solar-to-hydrogen efficiency record is 16.2 percent, topping a reported 14 percent efficiency in 2015 by a team made up of researchers from Helmholtz-Zentrum Berlin, TU Ilmenau, Fraunhofer ISE and the California Institute of Technology. A paper in Nature Energy , titled “Direct Solar-to-hydrogen Conversion via Inverted Metamorphic Multijunction Semiconductor Architectures ,” outlines how the new record was achieved. NREL said that the PEC cell represents a significant change from the concept device the paper’s co-author, John Turner, developed at NREL in the 1990s. According to NREL, both the old and new PEC processes emp...

Full article: http://www.renewableenergyworld.com/articles/2017/04/nati...

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