Free State Institute of Architects (FSIA)
– Winner: Award for Architecture
Consulting Engineers South Africa (CESA) Aon Engineering Excellence Awards
– Commendation: Projects with a value between R50 million and R250 million
South African Institution of Civil Engineering (SAICE) Awards
– National Finalist: Technical Excellence
The challenge was to construct the power station between two existing dams without affecting their operations and stability. This required deep excavations through the Botterkloof Dam embankment in between the Botterkloof Dam and Boston A Dam spillways.
Aurecon’s solution comprised a single 4.4 MW vertical double regulated Kaplan turbine (Saxo type) with the short penstock route optimised to avoid endangering the existing structures. It’s the first use of an EPCM contractual structure under the South African REIPPP programme.
The project will contribute to the energy on the South African power grid from a renewable resource and to the local economy of Dithlabeng Municipality in terms of both employment of locals and local procurement.