Pakistan seeks design, bid documents for 960-MW Tarbela 4th Extension

Pakistan’s Water and Power Development Authority (WAPDA) invites expressions of interest from consultants for detailed engineering design and tender documents for the 960-MW Tarbela 4th Extension project on the Indus River. Responses are due January 26, 2009.

The extension project would add another powerhouse to the 3,478-MW Tarbela hydroelectric project. The new powerhouse would contain two 480-MW turbine-generators, Units 15 and 16, on the right bank of the Indus River, utilizing discharge from the existing Tunnel 4 of Tarbela Dam.

With major civil works already in place, Tarbela 4th Extension would have a net head of 320 feet, penstock diameter of 36 feet, and annual energy production of 1,900 to 2,000 gigawatt-hours.

Pakistan’s Private Power and Infrastructure Board awarded a letter of interest in 2007 to M/S Tarbela Hydro Ltd. and Associates to perform a feasibility study of Tarbela 4th Extension. (HNN 8/31/07) The board also gave formal approval for development of the project, which it estimated to cost US$500 million.

Solicitation documents may be obtained from the address below for 1,000 rupees in Pakistan or US$50 for foreign bidders, including delivery charges.

Expressions of interest are due by 2:30 p.m. January 26. WAPDA plans to prepare a short list of firms to be invited to submit proposals.

For information, contact General Manager and Project Director, Tarbela Dam Project/GBHP, (92) 99-5660198; Fax: (92) 99-5660003; Internet:

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