Hydro power plants updates

[ziaulislam]

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View attachment 967543

Ghazi Barotha HydroPower​

With generation capacity of 1450 MW and an average energy output of 6600 GWh, Ghazi Barotha Hydropower Project is located on the Indus river downstream of Tarbela Dam in District Attock (Punjab) 92.7 KM from Islamabad. The project was completed during the fiscal year 2003-2004. This is a major run of river and environmentally sustainable project designed to meet the acute shortage of peak power demand in the country. Ghazi Barotha Hydropower Project holds the record for the biggest concrete lined channel in the world and is a large, renewable and emission free source of energy.

The Barrage​

The Barrage is located 7 km downstream of Tarbela Dam and provides a pond which re-regulates the daily discharge from Tarbela by diverting the flow into the Power Channel. The principal features include 20 No. standard bays, 8 No. under sluices and 8 No. head regulator bays in addition to rim embankments, fuse plug and dividing island.

The Barrage can pass the design flood of 18,700 cumecs, equivalent to the flood of record, through the standard bays and under sluices at the normal pond level of El. 340 m. The fuse plug has been provided to pass the extreme flood up to the capacity of Tarbela’s spillway and tunnels equaling 46,200 cumecs.

Barrage​	Metric Units​	British Units​
Normal pond level	340 m SPD	1115.5 ft
Max. (Survival) pond level	341.5m SPD	1120.4 ft
Min Pond Storage level	334.5 m SPD	1097.4 ft
Live storage capacity	50 MCM	40535.70 Acre ft
Design flood discharge capacity	18750 cumecs	662,200 cusecs
Survival flood capacity	46,200 cumecs	1,631,600 cusecs
Standard Bays	20 (18.3 x 8.3 m)	8 (60 x 11.5 ft)
Head regulator	8 (18.3 x 7.5 m)	8(60 x 25 ft)

Power Channel​

Ghazi Barotha Hydropower Project holds the record for the biggest concrete lined channel in the world. The channel is 51.90 km long with a concrete lining and design flow of up to 1600 cumecs at a water depth of 9 m. It has a bottom width of 58.4 m.

The Power Channel has a nearly contour alignment with hills on the left side and the land naturally draining towards the Indus River on the right side. It intercepts fifty three nullahs (natural drains) of which twenty-seven major nullahs have been passed over the Power Channel by providing super passages.

In addition to the thirty four road bridges, there are 12 pedestrian crossings over the Power Channel while the main railway line joining Rawalpindi to Peshawar also crosses the power channel. This may be the last riveted bridge of its type, constructed in Pakistan.

Main Features:​

Design flow	1,600 cumecs
Longitudinal slope	1:9600
Length	51,906 m
Full supply depth	9 m
Bed width	58.4 m
Side slope	IV: 2H
Lining thickness	135 mm

Power Complex​

The Power Complex is located near the confluence of the Indus and Haro rivers. It comprises a forebay, a siphon spillway , two head ponds, a power in take structure, penstocks, a power house with five 290 MW each turbo generators and a tail race channel.

The two head ponds with a combined live storage capacity of approximately 25.5 million cubic meters is sufficient for daily requirement of 4 hours peak generation. In May and June, when there is reduced power generation from Tarbela and Mangla power houses, Ghazi Barotha Hydropower Project provides peak production of 1450 MW.

No. of Generating Units	5
Rated Capacity per Unit	290 MW
Total installed Capacity	1450 MW
Generation voltage	18 KV
Rated Head (Ft.)	69 Meters

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Project Implementation of Ghazi Barotha HydroPower Project​

Ghazi Barotha Hydropower Project with a generation capacity of 1450 MW and an average energy output of 6600 GWh is a large, renewable and emission free source of energy towards WAPDA's vision 2025 goals.

The shortage of electrical power at affordable cost has long been identified as one of the main hurdles to the industrial and economic growth of Pakistan. The demand for electricity is growing rapidly and requires a considerable increase in the rate at which new generating capacity is introduced. Presently demand is met through a mix of thermal and hydroelectric plants.

The percentage of thermal power generation has continued to increase in recent years, with a noticeable impact on unit cost of generation. WAPDA has continually sought to maximize the country's capacity for Hydropower generation and reduce the dependence upon thermal power generation.

In the Feasibility Report, the time for Project implementation of Civil and M&E contracts was estimated as 63 months starting from 01 April 1993. With the approval of PC-1 of Preparatory works including land acquisition, relocation, resettlement, and construction of colonies and other infrastructure for Project were commenced in 1995.

The implementation of the Project ultimately came to fruition with the inauguration ceremony of the commissioning of Unit No.1 and Unit No.2 on 19 August 2003 by the President of Pakistan.

The work on the commissioning of other units continued and Unit no.5 was commissioned in April 2004. The construction of the North Head pond was completed in December 2004, thus completing the implementation of the Project works.

What a non sensical expensive project

At this cost they could have built three munda dams at that time

But again it's all about water profits seeing the power plant is in punjab

Even though most affected area is in kp

Another non sensical project is Nj

 

[ghazi52]

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River diversion works are in full swing at Diamer Basha Dam


The river diversion work is an important milestone which have to achieve in dry season for the construction of the Main Dam weir. The works are in progress with full force and are expected to be completed by the end of this month.
The diversion system consists of Diversion Canal and Diversion Tunnels (1&2) which are about 2000m (912m & 1041m). Due to the larger cross-sectional area of horseshoe-shaped tunnels (220m²), the excavation was divided into layers.

On completion, the project will irrigate 1.23 million acres of land and generate 18 billion units of green, clean, and low-cost hydel electricity per annum. A sum of Rs.78.5 billion is being spent on the resettlement of affectees and CBMs in health, education, and infrastructure development.

 

[ghazi52]

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Under Construction 84-MW Gorkin Matiltan Hydropower Project Swat

https://www.facebook.com/video.php?v=1085232639558218

 

[ghazi52]

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Diamer Basha Dam is all set to achieve a major milestone as River Indus will stand diverted for the Project by end of this month
Diamer Basha Dam is scheduled for completion in 2028. It will store 8.1 MAF water and generate 4500 MW clean, green and affordable electricity.

 

[ghazi52]

 

[ghazi52]

 

[ghazi52]

Under Construction Balakot Hydropower Project – 300MW

Located on the Kunhar River in Mansehra, Khyber Pakhtunkhwa, this project is set to provide clean, renewable energy to power thousands of homes and industries.

Capacity: 300MW

Location: Kunhar River, Mansehra, KP

Type: Run-of-the-river hydropower

Funding: Supported by the Asian Development Bank (ADB)

This project will not only reduce Pakistan’s reliance on imported fuels but also create thousands of jobs and boost local infrastructure. Plus, it's a big step towards a greener and more sustainable future!

 

[ghazi52]

Construction Continues on All Key Sites

Mohmand Dam is scheduled for Completion in 2026-27

February 24, 2025: Following diversion of River Swat in August last year, the construction work on all key sites of Mohmand Dam is progressing ahead at a good pace; while the Project is expected to be completed in 2026-27.

Chairman WAPDA Engr Lt Gen Sajjad Ghani (Retd) visited Mohmand Dam Project and reviewed in detail the construction activities on Spillway, Upstream and Downstream Coffer Dams, Diversion Tunnels, Power House and Power Intake.

GM/PD along with the Consultants and the Contractors briefed the Chairman about the targets and the achievements on different work fronts of the Project.

It was briefed that concreting on the Spillway is progressing ahead of schedule. Downstream Coffer Dam has reached the design height, while Upstream Coffer Dam will attain its maximum elevation of 414 meter above mean sea level in April this year.

Excavation for construction of the Main Dam pit and side slopes stripping is also in progress.

Excavation works for construction of the Power Tunnel, Penstocks and Manifold/Shaft Access Tunnels are also underway. Likewise, excavation for the Irrigation Tunnels and rock support works are also going on; while construction work on the left side Main Canal is also continuing.

Later, the Chairman also presided over a progress review meeting at the Project Office. Detailed deliberations were made during the meeting on various issues including quarry development, large scale triaxial machine testing, electrical and mechanical (E&M) design and manufacturing etc.

Addressing the meeting, the Chairman underlined the significance of quarry development for construction of the Main Dam.

He urged upon the Contractors to review the plan and deploy additional resources for much needed quarry development.

He also directed the Project Management, the Consultants and the Contractors to adhere to the timelines for completion of the Project without compromising on the quality standard of works.

It is important to note that WAPDA is constructing Mohmand Dam Project across River Swat in Mohmand District of Khyber Pakhtunkhwa. It is the 5th highest concrete-face-rock-fill dam in the world.

With a gross water storage capacity of 1.29 MAF, Mohmand Dam will irrigate 18,233 acres of new land in Mohmand and Charsadda, besides supplementing irrigation supplies to 160,000 acres of existing land.

Installed power capacity of the Project stands at 800 MW with annual energy generation of 2.86 billion units.

The Project will also provide 300 million gallons water per day to Peshawar for drinking purpose.

 

[ghazi52]

Mohmand Dam Project:

Construction Highlights on the Key Sites of Main Dam’s Foundation, Spillway, Upstream Coffer Dam and Power House.

The Dam will be completed in 2027.

Water Storage: 1.29 MAF;

Power Generation: 800 MW