Photos: Concentrating on solar power in Hawaii

Interest in using solar-thermal power, or concentrated solar power, to generate electricity from heat is perking up.

Hawaiian start-up Sopogy is taking a novel approach by taking the basic trough design of solar-thermal power plants, and shrinking it down for commercial or relatively small-scale utility use. Its collectors concentrate sunlight onto a tube filled with a liquid to create steam to turn a turbine that makes electricity.

Photo by Sopogy