(1) What are the specific reasons for the delay in the Medupi Power Station project; (2) when is the Medupi Power Station expected to start producing electricity; (3) what (a) are the penalty clauses relating to the boiler contract and (b) amount will a certain company (name furnished) be expected to pay Eskom in compensation for not completing their contract in time; (4) whether penalties will be levied; if not, why not; if so, when?