The US company which designed the under-performing Kusile power station reportedly received R12 billion from Eskom.
Some experts have accused Kusile of being poorly designed, resulting in power outages which have contributed to South Africa's energy problems.
Additionally, there were reportedly irregularities in Eskom's Kusile contract. For example, the power utility reportedly signed a blank cheque for the construction, and ended up paying twice for the same services.
According to the City Press, the Special Investigating Unit is investigating Eskom's contract with the Kansas-based firm Black & Veatch, which handled the Kusile designs. Additionally, the SIU is looking into the construction of the Medupi and Ingula power plants.
In total, the construction of the three stations totaled R342 billion. However, they are still not producing enough electricity to keep up with demand.
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