Ulu Jelai is a 372MW hydro power project. It is located on Bertram river/basin in Pahang, Malaysia. According to GlobalData, who tracks and profiles over 170,000 power plants worldwide, the project is currently active. It has been developed in a single phase. The project construction commenced in 2011 and subsequently entered into commercial operation in 2016. Buy the profile here.


The project is developed and owned by Tenaga Nasional.

The hydro reservoir capacity is 2.57 million cubic meter. The gross head of the project is 374.3m. The total number of penstocks, pipes or long channels that carry water down from the hydroelectric reservoir to the turbines inside the actual power station, are 2 in number. The penstock diameter is 3.75m. The project generated 326 GWh of electricity. The project cost is $388.826m.

Development status

The project construction commenced in 2011 and subsequently entered into commercial operation in 2016.

Contractors involved

Tindakan Mewah Sdn and Webuild were selected to render engineering procurement construction services for the hydro power project.

Andritz Hydro was selected as the turbine supplier for the hydro power project. The company provided 2 units of francis turbines, each with 186MW nameplate capacity.

Andritz Hydro supplied 2 electric generators for the project. The generator capacity is 219 MVA.

For more details on Ulu Jelai, buy the profile here.

About Tenaga Nasional

Tenaga Nasional Bhd (TNB) is an electric utility. Its operations cover the electricity production and supply value chain, including generation, transmission, and distribution of energy. It develops, operates, and maintains a portfolio of power generating units. The company produces electricity using the crude oil, hydro, natural gas, coal and gas sources. TNB also supplies transformers and switchgears in Brunei, Saudi Arabia, Pakistan, Thailand, Vietnam, and Indonesia; has interests in district cooling facilities in the UAE; and provides operation and maintenance services in Saudi Arabia, Kuwait and Pakistan. It serves industrial, commercial, residential, mining, street lighting, agriculture, regenerator, and free unit customers in Malaysia, Sabah and Labuan. TNB is headquartered in Kuala Lumpur, Malaysia.


GlobalData, the leading provider of industry intelligence, provided the underlying research used to produce this article.

This information is drawn from GlobalData’s Power Intelligence Center, which provides detailed profiles of over 170,000 active, planned and under construction power plants worldwide from announcement through to operation across all technologies and countries worldwide.