Arizona Public Service is building a solar power plant using solar troughs from Spanish solar company Abengoa. The will use more steel than the Golden Gate Bridge and take up 3 square miles.
There are several other alternatives in concentrating solar power, where heat makes steam to turn a turbine. But if you look at the pipeline of planned projects, parabolic troughs dominate, said Reese Tisdale, an analyst at Emerging Energy Research. "Parabolic troughs are the technology du jour. It is not going away."
May 26, 2008 6:00 AM PDT
Photo by: Abengoa
| Caption by: Martin LaMonicaElsa
Conversation powered by Livefyre