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June 10, 2011 By Chad Vander Veen
Answer: It can generate electricity at night.
The facility is, according to builder Terresol Energy, "The world’s first commercial-scale Concentrated Solar Power plant featuring central tower receiver with thermal storage capabilities"
A Concentrated Solar Power plant uses mirrors, called heliostats, to focus sunlight on a single point. Gemasolar, as the facility is known, directs the sun's rays to a point in a central tower, generating tempartures up to 1650 degrees Fahrenheit. This in turns warms molten salt tanks, which create steam to turn turbines for up to 15 hours without sunlight.
Click here to learn more about the Gemasolar facility.
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At the end of your article, there is a link: "Click here to learn more about the Gemasolar facility." When I clicked on it, it took me to a Spanish language article about the facility. My Spanish is decidedly limited, certainly not sufficient for reading a technical article. Perhaps I just missed it, but I did not see a "translation" link or any other reference to an English language version. Does one exist?
There is a british flag in the top right corner. when i clicked it the link sent me somewhere else, but pressing the back button got me to the english version.