South Korea's POSCO Energy has awarded Siemens an order worth EUR 400 million to supply three H class single shaft units for the 420 MW POSCO plant project.
For Siemens this is the fourth order from a South Korean buyer of H class technology within 18 months, following orders for the Bugok III, Ansan and Andong combined cycle power plants.
Siemens Energy said that in total, seven of these high performance turbines were sold to South Korea.
The new POSCO Power units will be built on an existing site in the Metropolitan City of Incheon approximately 30 kilometers west of Seoul. The gas fired plant will have an installed capacity over 420 MW each and will reach a gross efficiency of over 61%. Start of commercial operation is scheduled for summer 2014.
Under the contract with POSCO Energy, Siemens will deliver three SGT6-8000H gas turbines, three SST6-5000 steam turbines, three hydrogen cooled SGen6-2000H generators, the SPPA-T3000 instrumentation and control system for the power plant, parts of the BoP equipment, as well as the basic design. Siemens is responsible for installation and commissioning of the plant.
The plant will have a single-shaft design. A synchronous self shifting clutch is installed between the generator and the steam turbine, including three integrated Benson Heat Recovery Steam Generators. A long term service contract has been signed to ensure reliable and economic operation of the three units.
Mr Jin Won Park VP of Construction Division of POSCO Energy said that "We opted for the Siemens H class technology particularly because it is associated with very high efficiency and short start-up times together with a high level of operational flexibility and availability."
The three H class single shaft power units are designed for 250 starts per year and will need only 30 minutes from a hot start to full load.
Mr Park added that "Due to the very limited space at our site we are pleased that Siemens found the right solution to integrate and optimize the new units according to our needs."
As an answer to space limitations, Siemens designed the new plant in such a way that the three units will be erected in one building.
Mr Lothar Balling head of Gas Turbine Power Plant Solutions in the Fossil Power Generation Division of Siemens Energy said the new project continues builds on the company's relationship with POSCO Energy which started with the POSCO Unit 1 project back in the 1990s.
Source - Gas to Power Journal
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