Pakistan seeks civil work, equipment for 1,410-MW Tarbela 4th Extension

ISLAMABAD, Pakistan 7/6/12 (PennWell) — Pakistan’s Water and Power Development Authority (WAPDA) invites applications for pre-qualification for civil works and electro-mechanical equipment for the 1,410-MW Tarbela 4th Extension hydropower project. Responses to separate solicitations are due July 27 and August 22.

The extension project would add another powerhouse to the 3,478-MW Tarbela hydroelectric project on the Indus River. The new powerhouse would contain three 470-MW turbine-generators utilizing discharge from the existing irrigation Tunnel 4 of Tarbela Dam.

The World Bank said in March it approved a US$400 million loan for construction of Tarbela 4th Extension. In 2010, WAPDA named a joint venture of Mott MacDonald and Coyne et Bellier to be design engineer of the project

WAPDA invites applications for pre-qualification by July 27 for civil works including modification of intakes of Tunnels 3 and 4; design, supply, installation, and testing of a penstock; and construction of the powerhouse. WAPDA expects to invite bids from pre-qualified firms in October or November.

In a separate solicitation, WAPDA invites applications for pre-qualification by August 22 for design, supply, installation, commissioning, and testing of electro-mechanical equipment. Equipment includes three vertical-shaft Francis turbines and 470 MW generators, main inlet and relief valves, generator transformers, 500-kilovolt SF6 circuit breakers, switchgear, control instrumentation, supervisory control and data acquisition (SCADA) systems, and other associated powerhouse equipment. WAPDA expects to invite bids from pre-qualified firms in December.

Complete sets of pre-qualification documents for both solicitations, in English, may be obtained from WAPDA’s Internet site at or from the address below.

For information, contact Water and Power Development Authority (WAPDA), Chief Engineer/Project Director, Tarbela 4th Extension Hydropower Project, WAPDA, Tarbela, Ghazi, Haripur, Khyber Pakhtunkhwa, Pakistan; (92) 99-5660562-64; Fax: (92) 99-5660003; E-mail:; Internet:


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