[7] Sambu, an independent power provider (IPP), won the project in the last quarter of 2010 and construction work started in Jan 2011[8] Sambu has already successfully completed Pakistan's first IPP hydropower plant, 84MW New Bong Escape Hydropower Project, which is commercially operational since March 2013.

On its completion, Golen Gol Hydropower project will generate about 436 Mega Units (GWH) of inexpensive electricity annually to earn a revenue of about Rs 1 billion.

Being an environment friendly hydropower project, it will help reduce dependence on expensive thermal power, thereby saving foreign exchange amounting to $34 million (equivalent to Rs 3 billion) to the country.

It is being executed by Wapda on priority basis to harness indigenous hydropower resources to improve the ratio of hydel electricity in the national grid and providing relief to the consumers.

From the intake there will be a headrace channel leading to the tunnel, which will discharge the flow into the surge chamber and a combination of vertical and horizontal pressure shafts from where water flows to the surface powerhouse which is located on the left bank of Mastuj River, just downstream from the confluence of the Golen Gol and the Mastuj River.