The expansion, known as A-10, will involve the addition of up to 430 MW of new gas turbine capacity and the installation of heat recovery steam generators. The client is Gulf Total Tractebel Power Company (GTTPC), which was formed in 2000 to acquire and expand the existing Taweelah A-1 on a build-own-operate (BOO) basis (MEED 11:8:00).

EPC contractors have been invited to submit two options. The first covers two 107.3-MW gas turbines, two 360-tonne-an-hour heat recovery steam generators and the balance of plant work. Option B is for four gas turbines of 107.3 MW each, two heat recovery steam generators and the balance of plant works.

Prequalifiers for the work are understood to include Canada's SNC Lavalin, US-based Black & Veatch International, Hyundai Engineering & Construction Companyand Doosan Heavy Industries & Construction, both of South Korea.

GTTPC acquired the existing 225-MW, 29-million-gallon-a-day (g/d) co-generation plant in 2000. Under the terms of the contract, it agreed to expand the plant to 1,350 MW with capacity of 84 million g/d, using Frame-9 gas turbines manufactured by the US' General Electricand multi-effect distillation units from France's Sidem.

The EPC contractor is Germany's Deutsche Babcock. The shareholders in GTTPC are Abu Dhabi Water & Electricity Authority with 60 per cent, and France's TotalFinaElfand Belgium's Tractebelwith 20 per cent each.