Storing solar energy
One of the busiest areas of research in renewable energy is in storage, not power generation. SolarReserve has developed a molten-salt storage system that will be used in Nevada to deliver power several hours after the sun has gone down. A field of mirrors, pictured here in an artist's drawing, concentrate sunlight onto a tower to heat up the salt. The hot salt is then converted into steam to run an electricity turbine.
March 5, 2012 3:59 AM PST
Photo by: SolarReserve
| Caption by: Martin LaMonica
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