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Mohmand Hydropower Project

The 800MW Mohmand hydropower project is being constructed on the Swat River in the Mohmand district, Khyber Pakhtunkhwa province, Pakistan. The project involves the construction of a dam and an integrated powerhouse.


Project Type: Hydropower project

Location: Mohmand district, Khyber Pakhtunkhwa province, Pakistan

Capacity: 800MW

Estimated Investment: PKR309bn ($2.17bn)

Construction Started: March 2019

Expected Completion: July 2024


The construction works on the Mohmand hydropower project were started in March 2019. Credit: WAPDA.
The construction works on the Mohmand hydropower project were started in March 2019.

The 800MW Mohmand hydropower project is being constructed on the Swat River in the Mohmand district, Khyber Pakhtunkhwa province, Pakistan. The project involves the construction of a dam and an integrated powerhouse.

The water and Power Development Authority (WAPDA) of Pakistan is the implementing authority of the project. The Mohmand dam was proposed in the early-2000s, but work related to the project was started in 2017 upon completing detailed engineering and design.


The hydropower project was approved in March 2019 with an estimated investment of PKR309bn ($2.17bn). The project's groundbreaking ceremony was held in May 2019, while commissioning is scheduled for July 2024.


The Mohmand dam is expected to become a solution to flooding issues in Peshawar, Charsadda, and Naushera regions in Pakistan while irrigating 16,737 acres of land. The annual energy output of the power plant is expected to be 2,862GWh.


Mohmand hydropower project location


The Mohmand dam is being developed approximately 48km north of Peshawar at the intersection of Mohmand and Charsadda district.


WAPDA acquired 818.27 acres of land in the region for the construction of the dam in February 2019.


The site lies 5km upstream of Munda headworks in the Khyber Pakhtunkhwa province. The reservoir areas of the dam will be spread across the Mohmand, Bajaur, and other districts.


Mohmand dam details


The Mohmand hydropower project will include a 213m-high concrete-faced rock-filled dam and two 3,317m-long low-level river diversion outlets with a diameter of 15m. The dam will feature seven radial gates with a width of 15m and a height of 21m.


"The plant's power output is proposed to be transmitted to a 220kV switchyard located near the site."


The reservoir will have a storage capacity of 1,594 million cubic meters (Mcm). It is expected to provide irrigation, drinking water facilities, and electricity generation. Peshawar city will receive 13.32Mcm of water upon completion of the project.


Mohmand Dam will also irrigate 16,737 acres of cultivable area. The left bank will cultivate 9,017 acres, and the right bank will cultivate 7,720 acres.


Mohmand hydropower project make-up


The power plant's spillways will be of ogee weir design with a 539m crest level and with a capacity of 25,514 cubic meters per second (cumecs).


The headrace tunnel will be 805m-long with a diameter of 13.2m, while the penstock will be 155m-long with a diameter ranging between 5m and 10m.


A 130m-long and 40m-wide surface power station forms part of the project. It will house four Francis-type vertical shaft turbines coupled to generators rated at 200MW each.


The plant's power output is proposed to be transmitted to a 220kV switchyard located near the site.


Construction details


The Mohmand power project will mainly involve constructing permanent access roads, WAPDA camps, main civil works, irrigation tunnels, canals, and electrical and mechanical works.


Major civil works include the construction of the dam, spillways, and diversion tunnels. Associated development works include building roads, project offices, accommodation, a community center, schools, a mosque, and a shopping center.


Financing


Water and irrigation-related construction are estimated to cost PKR114.28bn ($805m), funded by Pakistan's federal public sector development program.

The remaining PKR195.27 ($1.37bn) will be obtained from WAPDA's equity and local and foreign bank investments.


Contractors involved


A joint venture of China Gezhouba group (CGGC) and Descon Engineering was awarded the engineering, procurement, and construction contract by WAPDA.

The contract includes access roads, irrigation facilities, dams, ancillary works, and the design and installation of electromechanical equipment and hydraulic metal structures.

The Mohmand hydropower project will irrigate 16,737 acres of land. Credit: WAPDA.
The Mohmand hydropower project will irrigate 16,737 acres of land. Source: WAPDA.
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