Below is an overview of the main features of the first three phases of the project.
Phase IA Phase IB Phase II Phase III
Name Katse Dam Mohale Dam Mashai Dam Tsoelike Dam
Dam height (m) 155 153 182 155
Power generation* (MW)
(installed capacity)
110 N/A 166 N/A
Water transfer capacity* (m³/s) 16.9 10.1 28.0 8.6
Transfer tunnels Yes Yes Yes No
The Orange River (Afrikaans/Dutch: Oranjerivier), Gariep River, Groote River or Senqu River is the longest river in South Africa. It rises in the Drakensberg mountains in Lesotho, flowing westwards through South Africa to the Atlantic Ocean. The river forms part of the international borders between South Africa and Namibia and between South Africa and Lesotho, as well as several provincial borders within South Africa. Although the river does not pass through any major cities, it plays an important role in the South African economy by providing water for irrigation, as well as hydroelectric power. The river was named by Robert Jacob Gordon after the Dutch Royal House
Below is an overview of the main features of the first three phases of the project.
