Japan-based Mitsubishi Heavy Industries (MHI) has received a full-turnkey order for a project to build a 1,600MW gas turbine combined-cycle (GTCC) power generation plant in Thailand.

The order was made by Gulf JP NS Company (GNS), a wholly owned subsidiary of Gulf JP Company.

The plant, to be operated by GNS in Nong Saeng district, Saraburi Province, will consist of two 800MW power generation plant trains.

The GTCC plant will primarily consist of four M701F gas turbines, two steam turbines and six generators.

MHI will manufacture the gas turbines at its Takasago Machinery Works and the steam turbines at its Nagasaki Shipyard & Machinery Works. The generators will be produced by Mitsubishi Electric Corporation.

The two units are scheduled to go online in June and December 2014, respectively.

GNS is building the Nong Saeng GTCC power plant based on the Thai government’s electric power development plan.

Civil construction work and installation at the plant site will be handled by Sino-Thai Engineering and Construction Public Company, a local construction firm.

GNS has already signed a long-term power purchase agreement with Electricity Generating Authority of Thailand (EGAT), under which the firm will supply electricity generated at the plant to EGAT for a 25 year period.

In GTCC plants, a gas turbine and steam turbine are used in combination to generate electricity in two stages, using high-temperature exhaust gas from the gas turbine to produce steam to drive the steam turbine.

This configuration allows GTCC plants to achieve higher thermal efficiency, which reduces fuel consumption and results in lower emissions of carbon dioxide.

Gulf JP Company Limited is 90% owned by a local subsidiary of Electric Power Development Co (J-POWER) of Japan and 10%owned by Gulf Holding Company, a major local power development company.