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Siemens receives order for largest turbine-generator set produced to date in Görlitz 

Siemens Energy has received an order for the largest three-cylinder steam turbinegenerator 
produced to date within the Industrial Power Business Unit. This condensing steam 
turbine-generator will in the future supply the Latvian capital Riga with district heat and 
electrical energy in the Riga TPP-2 Combined Cycle Co-Generating Facility (Riga TPP-2 
Reconstruction Project Second Unit). 

The turnkey contract has been awarded to the Turkish EPC (Engineering, Procurement, 
Construction) company Gama Power Systems Inc., which will design, supply, erect, and 
commission the cogeneration district heating plant in Riga for the Latvian utility Latvenergo 
A.S.

The picture shows Dr. Markus Tacke, CEO E O IP, Mayor Joachim Paulick, and Reza Karimiyan, Executive Managing Director Gama Power Systems (from left)

The new cogeneration district heating plant will have an overall electrical capacity of 
approximately 420 megawatt (MW) and a thermal capacity of as much as 270 MW. The Siemens condensing turbine-generator will feature three industrial steam turbines, two SST-800 machines and one SST-500 steam turbine, which will be produced at the company’s manufacturing plant in Görlitz. 

The order also includes a generator, a condensing plant, and three district heat exchangers. With a train length measuring approximately 36 meters the turbine-generator  will be the largest district heating plant built to date in Görlitz. In summer, the turbine-generator unit will provide an electrical output of 145 MW, and in winter a thermal output of 249 MW combined with an electricaloutput of 125 MW. The steam turbine-generator ordered from Siemens is also unique in terms of its complexity and flexibility. The turbine configuration and the use of in total three district heaters allow a precise adjustment of the turbine generator performance to the actual heating demand. During the summer months or during periods with low heating demand the third SST-500 steam turbine in the train can be shut down.

“For the first time, our engineering team has combined field-proven technology in a new 
design,” said Markus Tacke, CEO of the Industrial Power Business Unit of Siemens Energy. “To date, only two-cylinder industrial steam turbines have been supplied – and now we’re 
producing a train comprising three steam turbines. I’m pleased that with this order we’re 
demonstrating to our customer the innovational capabilities of our company and at the same 
time securing its faith in our flexible product solutions, which precisely meet its needs.

More: www.siemens.com/energy

Posted June 7, 2010

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