German technology firm Voith has signed a €200m contract with the Water and Power Development Authority (WAPDA) of Pakistan to supply electromechanical equipment for the Tarbela 4th Extension Hydropower Project.
Under the contract, Voith will supply three generators, three 470MW Francis turbines, the automation systems and the electrical and mechanical balance-of-plant systems for the extension project.
The contract is being financed by the World Bank.
On completion, the Tarbela dam's capacity will be increased to 4,888MW from the current power capacity of 3,478MW.
The project will be equipped in association with Voith Hydro's operating units in Shanghai, China, and Heidenheim, Germany, while the automation and electrical balance-of-plant systems will be developed and supplied by Voith Hydro in Heidenheim.
Voith Hydro in Shanghai will produce the three 470MW vertical shaft Francis turbine units and the three 522MVA generators in addition to the mechanical balance of plant systems and three butterfly valves with an inside diameter of 7.5m.
Currently, Tarbela Dam currently provides 16% of Pakistan's electricity. The extension will increase the capacity of the existing dam by 1,410MW and add 3,871GWh per year to the power grid of Pakistan.
The Pakistan Government aims to develop up to 20,000MW of hydropower and to reverse the country's energy mix to a portion of 70% coming from hydropower and only 30% from fossil fuels by 2025.