n Civil Engineering = Siviele Ingenieurswese - Ingula progress update : construction and project management

Volume 21, Issue 6
  • ISSN : 1021-2000



Work on the Ingula Pumped Storage Scheme - one of the largest and most exciting projects under construction in South Africa at present - is gaining momentum now that the mining operations have been completed. Excavation of the two 91 m high by 22.4 m diameter underground surge chambers was recently completed.

Ingula, located between Ladysmith and Harrismith in the Little Drakensberg, is a 1 332 MW project for power utility Eskom. The project will increase South Africa's energy generating capacity during peak demand periods. Ingula consists of an upper and lower dam with an elevation difference of approximately 480 m, a powerhouse situated in two large underground caverns excavated in mudrock and housing four 333 MW Francis-type turbines, approximately 6.5 km of connecting tunnels/waterways, 3 km of access tunnels and a number of ventilation shafts.

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