The projects represent a total investment of about $1bn by the Electricity Generating Authority of Thailand (EGAT), the owner of both facilities, and are due to complete in 2014.
The projects involve adding a new power block to the Chana Combined Cycle Power Plant (Chana 2) in Songkhla province, and a fourth combined cycle power block to the Wang Noi facility (Wang Noi 4) in Ayutthaya province.
Upon completion, the new gas-fired combined cycle power blocks at Chana 2 and Wang Noi 4 will produce 782 MW and 769 MW, respectively. The current capacity at Chana 1 and Wan Noi 1, 2 and 3 is 700 MW and 2027 MW, respectively.
Chana 2 will consist of two, single-shaft combined-cycle trains, each of about 390 MW. This arrangement, the first of its kind in Thailand, provides more flexibility for power plant operation and will improve plant efficiency, according to Black & Veatch.
Marubeni, in consortium with Siemens AG and Siemens Limited (Thailand), was awarded a lump sum engineering, procurement and construction contract for both projects.
Black & Veatch will provide Marubeni with design engineering and procurement for balance-of-plant equipment and other services including technical field assistance, supply of the heat recovery steam generators and commissioning of other Black & Veatch furnished plant equipment.
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