Super-efficient solar-energy technology: ‘Solar steam’ so effective it can make steam from icy cold water
Super-efficient solar-energy technology: ‘Solar steam’ so effective it can make steam from icy cold water



The solar steam device developed at Rice University has an overall energy efficiency of 24 percent, far surpassing that of photovoltaic solar panels. It may first be used in sanitation and water-purification applications in the developing world. (Credit: Jeff Fitlow/Rice University



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