Toward home-brewed electricity with 'personalized solar energy'

December 16, 2009
A rooftop solar panel converts sunlight to electricity. In a new study, an expert describes progress toward an efficient and inexpensive method for storing and distributing solar energy in the home. Credit: Wikimedia Commons

New scientific discoveries are moving society toward the era of "personalized solar energy," in which the focus of electricity production shifts from huge central generating stations to individuals in their own homes and communities. That's the topic of a report by an international expert on solar energy published in the ACS' Inorganic Chemistry. It describes a long-awaited, inexpensive method for solar energy storage that could help power homes and plug-in cars in the future while helping keep the environment clean.

Daniel Nocera explains that the global energy need will double by mid-century and triple by 2100 due to rising standards of living world population growth. Personalized solar energy - the capture and storage of solar energy at the individual or home level - could meet that demand in a sustainable way, especially in poorer areas of the world.

The report describes development of a practical, inexpensive storage system for achieving personalized solar energy. At its heart is an innovative catalyst that splits water molecules into oxygen and hydrogen that become fuel for producing electricity in a fuel cell. The new oxygen-evolving catalyst works like , the method plants use to make energy, producing from sunlight and water.

"Because energy use scales with wealth, point-of-use will put individuals, in the smallest village in the nonlegacy world and in the largest city of the legacy world, on a more level playing field," the report states.

Explore further: U.S. announces solar energy initiative

More information: "Chemistry of Personalized Solar Energy", Inorganic Chemistry, pubs.acs.org/stoken/presspac/presspac/full/10.1021/ic901328v

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vominos
not rated yet Dec 23, 2009
it will be nice when the technology is cheaper and the average joe can outfit his home with panels

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