Kariba South Power Station

In 1955, it was decided to dam the Zambezi River at the Kariba Gorge to supply power to Zimbabwe and Zambia. Three years later and despite many difficulties, including record breaking floods, the Zambezi River was dammed and Lake Kariba began to form.

In 1956, engineers started to mine a vast cavern that would house a power station, about 174 metres below the ground and by 1959, the first generator was commissioned. All 6 generators were in operation by 1962, with a generation capacity of 666MW. The station was uprated to 125MW per unit making the total installed capacity 750MW.

In 2014, ZPC embarked on a project to extend the existing plant by addition of two more units with a total generation capacity of 300MW. The project was successfully completed and commissioned in March 2018, thereby making Kariba South Power Station the biggest power generation plant in Zimbabwe with a total generation capacity of 1050MW.

Electricity is generated by drawing water from Lake Kariba through a short horizontal intake via a radial gate and through a vertical penstock to the turbine spiral casing. After passing through the turbine and producing power in the coupled generator, water at reduced pressure is passed through a suction cone and draft tube to the tailrace. This is discharged downstream of the dam, back into the Zambezi River.

The Zambezi River Authority (ZRA), a statutory body formed by the Zimbabwean and Zambian governments, is responsible for the allocation of water used by Zimbabwe’s Kariba South and Zambia’s Kariba North Power Stations.

Kariba South Power Station is used for frequency, tie line and automatic generation control and the station’s operational efficiency is above 90 percent. Depending on inflows into the lake, the station can generate a maximum of 5000 GW/hrs with a load factor of 80 percent.

Select an experience to begin playing.

  • {{experience.name}}
    Power Station: {{experience.station}}
Number of Experiences: {{experiences.length}}