Ghazi-Barotha Hydropower Project

Pakistan / Punjab / Attock /
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The 1450 MW Ghazi-Barotha Hydropower Project is run-of-river project in Pakistan located on River Indus about 2 hour drive from Islamabad. About 1,600 cubic meter water per second is diverted from the river near Ghazi Town about 7 km downstream of Tarbela Dam (3,478MW). It then runs through an open power channel 100 meter wide 9 meter deep and 52 km long down to the village of Barotha where the power complex is located. In the reach from Ghazi to Barotha, the Indus River drops by 76 meters over a distance of 63 km. After passing through the powerhouse, diverted water is returned to the Indus. In addition to these main works, transmission lines stretch 340 km.
The World Bank classed it "A" for adequate attention to environmental and social issues. The project took about 10 years and $2.2 billion to complete.

The Ghazi-Barotha Hydropower Project is a major run-of-river power project designed to meet the acute power shortage in Pakistan. The main project elements include a barrage located on the Indus River, a power channel (designed to divert water from the barrage) and a power complex. Alternative locations for these elements were evaluated based on technical, economic, environmental and social constraints by an interdisciplinary project team and reviewed by an external environmental and resettlement panel.

Initial assessment of five barrage sites identified by the project consultants resulted in two options being selected for detailed evaluation. The preferred option has less storage capacity than the main alternative, but was preferable in terms of environmental impact.

The most economical alignment for the power channel would have necessitated resettlement of an estimated 40,000 people. Moving the alignment to less densely populated areas, although technically more complex and financially less attractive, reduced the resettlement requirement to approximately 900 people. Additional modifications further reduced the impact on archaeological sites and graveyards.

Five power complex sites were initially studied, and three remained for detailed evaluation. Topographical factors determined the preferred option, as the environmental implications were broadly similar in each case. Sub-elements of the power complex, such as access roads, head pond capacity and embankments, were chosen based on environmental and technical considerations.

Finally, four alternative alignments were evaluated for the 500 kV transmission line connections to the main grid station. The selected routes had minimal environmental and socio-cultural impacts. Detailed design focused on choosing alignment and tower locations with minimal impacts on dwellings, agricultural land and archaeological sites.
www.power-technology.com/projects/ghazi/
en.wikipedia.org/wiki/Indus_River
en.wikipedia.org/wiki/Tarbela_Dam


by Sani (03465960258)
Wikipedia article: https://en.wikipedia.org/wiki/Ghazi-Barotha_Hydropower_Project
Nearby cities:
Coordinates:   33°47'19"N   72°16'7"E

Comments

  • The Ghazi Barotha Dam (Urdu: غازى بروتھا بند ) is NOT a dam but a 'run of the river' project. It is located on the Indus River in Pakistan. The Ghazi Barotha Hydroelectric project is located approximately 100km from Islamabad. The project involved the construction of a partial river diversion at Ghazi Barotha, 7 km downstream from the Tarbela Dam. The barrage diverts water into a 52km concrete-lined channel and delivers it to the 1,450MW powerhouse at Barotha, which is further downstream, near the confluence of the Indus and Haro rivers. In this reach, the Indus River drops by 76 meters over a distance of 63km. After passing through the powerhouse, diverted water is returned to the Indus. In addition to these main works, transmission lines stretch 340km.
  • The ghazi Brotha power project is an ideal project. This will be agreat contrebution in the developmint of our aria it is realy a great project
  • When was it made?
  • 1976
This article was last modified 8 years ago