(1) Whether the original cost of R32 billion for the Medupi Power Plant was in line with the average cost per megawatt of coal fired power stations; if not, why not; if so, what are the relevant details; (2) whether Eskom insisted on a change in specifications that resulted in the cost escalating to R92 billion; if not, what are the reasons for the escalating cost; if so, what justification was put forward for this increase in cost; (3) what is the expected total cost for the Medupi Power Plant upon commissioning?