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Siemens to supply steam turbine for solar thermal power plant in California 

By Gerald Ondrey |

Siemens Energy (Erlangen, Germany; www.siemens.com/energy) has been awarded an order to supply the largest ever fully solar-powered steam turbine-generator set for the first commercial solar-tower power plant project to break ground in the U.S. The purchaser is BrightSource Energy, Inc., a developer of utility-scale solar power plants. The 123-megawatt (MW) steam turbine-generator set will be operated at BrightSource’s Ivanpah Solar Complex in Southern California’s Mojave Desert.    Siemens will supply a reheat SST-900 industrial steam turbine, which was specially adapted to meet solar technology requirements, for BrightSource’s first 100-MW plant at its Ivanpah Solar Power Complex. This type of turbine offers very high efficiency under varying operating conditions. With maximum steam data similar to conventional fossil-fired plants, the SST-900 design also allows for flexible operation with load swings and frequent starting and stopping. The units are shipped fully assembled to shorten the installation time. The turbine will be manufactured in Sweden, and the generator in Germany, and both are scheduled to be delivered to the site in early 2011. The plant is expected to be operational and supplying clean…
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