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Thermal solar power gets hot

03 July 2008 | Market Watch: News From Around The Web | Source: Business Week

With the arrival of summer, children can sometimes be seen playing with magnifying glasses, delighting in their seemingly magical ability to light small piles of leaves on fire. This year, a utility-size version of the same idea--concentrating the sun's rays to create intense heat--is attracting growing interest and investment from electric utilities seeking to boost their capacity to generate power from renewable energy sources.

More states are requiring utilities to supply a portion of electricity from renewables--and in some cases, solar power specifically. As a result, electric utilities in the southwestern states (where the sun is strongest) of California, Arizona, Texas, Utah, Nevada, Colorado, and New Mexico are signing agreements to buy electricity from developers of solar power stations. These collect sunlight by lenses or mirrors and focused it to create heat that can be used to generate electricity.   

 

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