The contract covers the supply of four GE Frame 6B gas turbine-generators, five compressors, five steam turbines, heat recovery steam generators and related services.
The power plant will provide 140 MW of power and up to 600 tonnes per hour of steam for the ammonia and urea plant processes, which form the central part of the expansion.
The GE deal comes two months after Qafco awarded the main process package on its expansion to an Italian/Korean consortium of Snamprogetti and Hyundai Engineering & Construction in a contract worth $3.2bn.
The overall project involves the construction of a 3,500-tonne-a-day (t/d) urea train and two 2,200-t/d ammonia plants. It also includes the power plant, ship-loading facilities, an air separation unit, a desalination plant and an effluent water treatment unit.
Qafco is a 75:25 joint venture of Industries Qatar and Yara International of Norway.