Neelum Jhelum Hydro Power Project will be formally inaugurated on Friday.
Power supply from the project has been started on an experimental basis and the first unit is already providing sixty-megawatt electricity to the national grid.
The project will provide nine hundred sixty-nine megawatt electricity to the national grid.
The first unit of strategically important 969 MW Neelum Jhelum Hydropower Project, located in Azad Jammu and Kashmir, will start supplying 470 MW to the national grid.
The official told state-run media that the Prime Minister is likely to inaugurate the first unit of 969 MW Neelum Jhelum Hydropower Project.
They said that water filling in head race tunnel had already been commenced, followed by wet commissioning test in order to start generation.
The head race tunnel is a component of 52-kilometre long waterway system of the project that has been constructed underground in the high mountain areas to divert water from the water reservoir to the powerhouse of the project.
The first unit would be followed by second, third and fourth units at one-month interval respectively, they said.
The Project will provide about five billion low-cost hydel electricity to the National Grid every year. Annual benefits of the project have been estimated at Rs50 billion.