An advance in the storage of concentrated solar thermal energy may reduce reduce its cost and make it more practical for wider use. Credit: Graphic by Kelvin Randhir, courtesy of the University of Florida
New approach for storage of concentrated solar thermal energy has been found, to reduce cost and make it more practical for wider use. The advance is based on thermochemical storage, in which chemical transformation is used in repeated cycles to hold heat, use it to drive turbines, and then be re-heated to continue the cycle. Most commonly this might be done over a 24 hour period, with variable levels of solar-powered electricity available at any time of day, as dictated by demand.
Conceptually, all of the energy produced could be stored indefinitely and used later when the electricity is...
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