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South Korea Plant Goes Online

Dangjin 3 combined-cycle plant handed over; H-Class turbines form cornerstone

Posted on September 9, 2013

Siemens Energy and its partner, GS Engineering & Construction (GS E&C), have passed over the Dangjin 3 (formerly Bugok 3) combined-cycle power plant to the South Korean power utility GS EPS Co. Ltd.

The Dangjin 3 power plant is located in Dangjin-City, Chungchong Nam-do Province, approximately 120 km south of Seoul. The company said that Dangjin 3 is the most efficient fossil-fired power plant in Asia, with an efficiency of almost 61% and an electrical capacity of 415 MW.

As the head of a consortium, Siemens built the plant as a turnkey project together with GS E&C and supplied a SGT6-8000H gas turbine, a SST6-5000 steam turbine, an SGen6-2000H hydrogen-cooled generator, a Benson heat recovery steam generator, as well as parts of the electrical equipment and the SPPA-T3000 instrumentation and controls system. The company was also responsible for commissioning the power plant.

Currently, South Korea imports by sea nearly its entire demand for gas in the form of liquid natural gas, so the efficiency of gas-fired power plants plays a crucial role for the country. A rapid rise in demand for electrical energy has prompted South Korea to plan generation capacity expansion from 95 GW to more than 150 GW by 2030.

Gas-fired power plants are expected to account for approximately one-third of this amount. Siemens and its partners are currently building the Ansan, Andong, Posco and Daegu combined-cycle power plants in South Korea, and Siemens said it will equip all four plants with H-class gas turbines as well as other main components consisting of generators, steam turbines and heat recovery steam generators.