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Thailand Plant In Commercial Operation

Siemens, Marubeni hand over Wang Noi 4 Power Plant to EGAT

Posted on May 19, 2014

A consortium comprising Siemens AG, Siemens Ltd. Thailand and the Japanese partner Marubeni, has completed the Wang Noi 4 combined-cycle power plant (CCPP) in Thailand on schedule.

The owner is the state-owned utility Electricity Generating Authority of Thailand (EGAT), which took the power plant into commercial operation in April 2014. Siemens said the natural-gas fired plant features an efficiency of over 57.3% with an electrical capacity of 770 MW, making Wang Noi 4 one of the most modern power plants in Thailand in terms of environmental compatibility and efficiency.

The multi-shaft unit Wang Noi 4 is located near the Thai capital Bangkok and is an extension of an existing three-unit power plant complex. For unit 4, Siemens supplied the main components, comprising two model SGT5-4000F gas turbines, an SST5-5000 steam turbine, three SGen-1000A generators, and the SPPA-T3000 instrumentation & control system. Siemens was also in charge of commissioning of Unit 4.

Marubeni supplied the heat recovery steam generators (HRSG), the main transformers and the cooling tower. Siemens' partner in the consortium was also responsible for the civil works and erection of the plant.

Following Wang Noi 4, the Siemens and Marubeni consortium will be completing the Chana 2 CCPP, a further two single-shaft unit in the summer of 2014. The company said that power plants with its turbine generator sets – including Chon Buri IPT, Chana 1 (previously known as Songkhla), Bang Pakong 5, and Glow – are making a major contribution to environmentally friendly power generation in Thailand.