Tarbela Hydropower project IV extension

[ghazi52]

Tarbela 4th extension project 1st unit to start generation on Feb 25

As many as 91.88 percent work has been completed on the Tarbela 4th extension power project so far and its first unit (470 MW) will start generation on February 25. Talking to APP, Tarbela project director Shoail Khan said, “Over all physical work on the project has reached at 91.88 percent so far.” Dry testing would be conducted on January 25 while wet testing would start on January 26, he said. He said that the 2nd unit (470 MW) would start generation by April 25, followed by third unit (470 MW) on May 30, he said. He said that the project would cost $920 million and additional 1410 MW cheaper hydel electricity would be generated. Sohail Khan said that the World Bank had provided $840 million for the project while Water and Power Development Authority arranged the remaining $80 million. He said that three units of 470 MW each were being installed at the power house which would enhance the total electricity generation to 4888 MW from the existing 3478 MW.

Dilating upon the benefits of the project, he said that the project having three units of 470MW each would produce 3,840GWh of cheap hydropower at a time when electricity needs would be at peak in hot and humid weather.

Annual benefits of the project have been estimated at around Rs30.7 billion. The project will pay back its cost in just three years.

 

[ghazi52]

1410 MW Tarbela 4th Extension HydroPower Project Under Construction.
It will be commissioned in February 2018 with its first unit going into operation,while the second unit of the project will come on line by end April 2018 and the third unit by end May 2018.

 

[ghazi52]

Electrical & Mechanical Equipment Installed at Tarbela 4th Extension hydro power project by German Firm Voith Hydro.

 

[ghazi52]

Tail-race pond is full and ready for commissioning. Tarbela 4th hydropower .

Great moment. 470 MW machine virgin mechanical run carried out successfully. GM (P)T, CE/PD, T-4 deserve big applause...
Tarbela 4th Extension hydropower project..

https://www.facebook.com/

 

[ghazi52]

Tarbela 4th extension project starts power production

LAHORE: The Water and Power Development Authority (Wapda) achieved another landmark for energy security as the Tarbela 4th extension project started electricity generation on Monday.

The first generating unit has started providing electricity to the national grid. Wapda Chairman Muzammil Hussain visited the site to mark the development.

Highlighting significance of the project in economic and social development of the country, Hussain announced that the prime minister would formally inaugurate the Tarbela 4th extension project in the second week of March.

 

[ghazi52]

Tarbela 4th Extension Hydropower Project started electricity generation

The first generating unit (470 MW), put into operation has started providing electricity to the National Grid The second unit is scheduled to be commissioned by the end of April, while the third unit is scheduled to start electricity generation by the end of May, this year.

 

[My-Analogous]

Tarbela 4th Extension Hydropower Project started electricity generation

The first generating unit (470 MW), put into operation has started providing electricity to the National Grid The second unit is scheduled to be commissioned by the end of April, while the third unit is scheduled to start electricity generation by the end of May, this year.

So soon Pakistan will get 1410MW cheap energy from it. Good work and it save billions in a year

 

[ghazi52]

 

[ghazi52]

1410 MW Tarbela 4th Extension HydroPower Project.

The construction work on 1410 MW Tarbela 4th extension hydropower project is in full swing at Tarbela dam. The first unit of 470 MW of 4th Extension Power Project of Tarbela was inaugurated on 10th March 2018.
The project is being constructed on tunnel No 4 of Tarbela Dam with three proposed units with an installed capacity of 470 MW each. The second unit of the project is scheduled to be commissioned in May 2018 and the third unit by the end of June 2018.

 

[Samlee]

Good

 

[ghazi52]

Tarbela Dam T-4 Unit ... Hydro Project ...

A best video of the Tarbela Dam (Tunnel-4 UNIT 17) is now Running for tests.

https://www.facebook.com/

 

[ziaulislam]

Given delay they will miss this season high flow..meaning pretty much it will work from next year

 

[Bilal.]

Given delay they will miss this season high flow..meaning pretty much it will work from next year

Any update on extension V, it was supposed to start after extension IV.

 

[ziaulislam]

Any update on extension V, it was supposed to start after extension IV.

financing is an issue.. WAPDA needs 500 million dollars, but cant get the funds form govt... 300 m dollars have been arranged from WB by WAPDA

originally it was supposed to be austrian govt financing the project if no comptitive bidding done but govt opted competitve bidding(right decision as cost can be 20% higher wihtout one)

V could have started anytime after 2017 if funding wasa rranged

 

[ghazi52]

Second unit of Tarbela 4th Extension resumes power generation


LAHORE: The second unit of Tarbela 4th Extension Hydropower Project resumed its operation on Friday after engineers removed the fault with its draft tube gates.

Last week, the first unit of the project was put back into power generation after the engineers lifted the draft tube gates that were stuck when silt was piled up because of unprecedented slide of water levels to the dead level and issues with valves on the penstock.

According to an official, the project is required to undergo testing for another 570 days of defect liability period (DLP) with total responsibility of the contractor for its repair, maintenance and replacement. “Tarbela produces more than 3,400MW energy through its 14 units commissioned on its first three tunnels. The project of three units of 470MW each was planned in 2012-13 on 4th tunnel called Tarbela 4th Extension to add 1,410MW to the national grid. A coordinated construction schedule was planned to make full use of flood season of 2018. The first unit was inaugurated on March 10, 2018,” explained a source.

He said that taking full consideration of hydrological data of the last 10 years, the wet commissioning of the first unit was carried out between Feb 20 and March 10. Wet commissioning is about uninterrupted tests, including mechanical speed, balancing of generator and load rejections. Fortunately, there were sufficient water levels and during wet commissioning, the unit remained at different loads till maximum load of 303MW as per water head.

Unprecedented changes in hydrological behaviour, climate change and huge deposits of silt in Tarbela led to lower water levels. Later, the unit was completely flushed, cleaned and shut down on March 11. However, sequel to water levels raise in June, the unit restarted and ran optimally without any trouble, producing 173 million units till July 5.

The official said that following another unprecedented slide of water below the dead level, the unit was again shut down.

He said the movement of pivot of silt delta and a crack in one of the valves (purely a technical issue) led to jamming of draft tube gates. The project is now under testing and the defect liability period. Valves have been replaced. Both the stuck gates had been raised without compromising technical regimes, he added.

A press release issued by a spokesperson for Wapda says that first and second units are adding 300MW and 470MW to the national grid.

“The third unit of the project is also complete and expected to start power generation by the end of this month,” it adds.