Siemens completes three power plant units in South Korea

siemens natural gas power plant elp

Siemens, together with its South Korean customer POSCO Energy & Construction, have completed the Incheon LNG CCPP 7, 8, and 9 combined cycle power plant units. These units were erected at the existing site in Incheon, about 20 miles west of Seoul.

Units 7 and 8 were completed on July 30, 2014 and October 21, 2014 respectively, while unit 9 went online on January 17, 2015. This enabled the overall power plant to take up commercial operation six weeks ahead of the scheduled completion date; the first unit after a construction period of only 22 months. The plants are operated by POSCO Energy.

Equipped with the latest H-class technology and with a total installed electrical capacity of 1,262 MW and a net efficiency of 60 percent, this plant was again listed among the country's top power plants.

Each of the natural-gas-fired units has an installed gross electrical capacity of 420 MW. The plants are designed for 250 starts per year and can power up to full load in only 30 minutes. Because of extremely limited space at the existing power plant site, Siemens designed the three units such that they could all be erected in one single building.

Siemens delivered three power islands, each consisting of an SGT6-8000H gas turbine, an SST6-5000 HI-L steam turbine, an SGen6-2000H generator, a triple-pressure Benson heat recovery steam generator with SCR and the SPPA-T3000 I&C system for the overall plant.

The company was also responsible for the basic engineering and commissioned the components and the overall plant. A long-term service contract will not only guarantee a high degree of reliability, but also the profitability of the units. POSCO E&C was responsible for the auxiliary systems, civil engineering, the electrical systems and the assembly and installation work for the site.

To date, Siemens has sold 15 of the SGT6-8000H gas turbine models for eight projects in South Korea. This corresponds to an installed power generating capacity of 6.3 GW.

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