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Tuesday, August 9, 2011

Making H2 from solar panel

Hybrid solar system makes rooftop hydrogen
This is the hybrid system schematic. Credit: Nico Hotz
Hybrid solar system makes rooftop hydrogen
While roofs across the world sport photovoltaic solar panels to convert sunlight into electricity, a Duke University engineer believes a novel hybrid system can wring even more useful energy out of the sun's rays.

"Instead of systems based on standard , Duke engineer Nico Hotz proposes a hybrid option in which sunlight heats a combination of water and methanol in a maze of glass tubes on a rooftop. After two , the system produces hydrogen much more efficiently than current technology without significant . The resulting hydrogen can be stored and used on demand in fuel cells."

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