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Siemens Combined-Cycle Power Plant for the Netherlands

Posted on May 26, 2009

Siemens Energy has secured an order for a combined-cycle power project in the Rotterdam harbor in the Netherlands. The purchaser is Enecogen, a partnership of the Dutch utility Eneco and the Danish utility DONG Energy. The project with an installed capacity of approximately 870 MW is scheduled to go on line in late 2011. The order volume, including a long-term maintenance agreement, is approximately US$978 million.

The project consists of two trains of the SCC5-4000F 1 S combined-cycle power plant, which through its modular concept allows easy adaptation to specific customer needs and site requirements, high operational flexibility, short start up times and high ramp rates. Siemens Energy will build the power plant as a turnkey project and supply the main components for each train including one SGT5-4000F gas turbine, one SST5-5000 steam turbine and one hydrogen-cooled generator, the entire mechanical equipment, and the electrical and I&C systems. All three main components are arranged on a single shaft. A synchronous self-shifting (SSS) clutch is installed between the generator and steam turbine to provide high operating flexibility and reliability.

“With low NOx emissions of less than 10 ppm and a plant efficiency of more than 59 percent the two gas-fired plants will be the most environmentally friendly recently built commercially in Europe,” said Lothar Balling, CEO of Energy Solution Business Europe of Siemens Fossil Division. “Since the development of this plant concept in the mid-nineties and the introduction of this plant concept in 1994 in Kings Lynn (UK), almost 80 of these single shaft trains have been sold worldwide. Today, there are 43 units in operation and further 35 units under construction especially in Europe, which demonstrates its capability to meet the European market demand.” Due to the high commitment of Siemens and its major sub-suppliers NEM (for HRSG), BAM and other Dutch civil partners this plant will be built in less than 30 months and will go online at the end of 2011. All in all this will result in an improvement of the business case for the owners of the project.

Recent orders that Siemens secured for this power plant concept in Europe include Severn Power in the UK (also recently taken over by DONG Energy), Timelkam and Mellach in Austria, Sloe in the Netherlands, Pego in Portugal, Gönyü in Hungary, Malzenice in Slovakia and further single-shaft trains in Russia.

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