The burning of solid urban waste, sludge from water treatment plants, and livestock slurry could generate more than 7 percent of Spain’s electricity needs, according to a new report.
Researchers at the University of Zaragoza say incineration of these materials has the potential to produce up to 20.95 terawatt hours annually. In 2008, that would have met 7.2 percent of the nation’s electricity demand, according to the report published in the journal Renewable Energy.