There is a good, short article posted on-line recently in the Christian Science Monitor entitled, “Arizona’s Solar Aspirations In Peril”. The article suggests that large-scale solar power plants are still far from being competitive with conventional fossil-fired plants, even in a place that sees 325 days of sunshine per year. According to the article, expiration of the federal Investment Tax Credit in 2008 is going to sink a 1 billion dollar solar project slated to elevate Arizona’s prominence as renewable energy hub.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
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