The financial ramifications of the delays to the Fiona Stanley Hospital remain a mystery to the Government, which still does not know its liability for contracting Serco to run the facility before it becomes fully operational.
The global services conglomerate is contracted to run FSH from April 1 next year, but complex technology and workforce planning issues have delayed the full operation of the hospital until April 2015.
Shadow health minister Roger Cook yesterday asked his Government counterpart Kim Hames how much the taxpayer would have to pay for "having this asset just sitting around idle".
Department of Health FSH commissioning executive David Russell-Weisz said it was hoped negotiations would be completed in the next two months.
Mr Cook said: "This is being done with taxpayers' money that you have hidden in some privatisation contract. This is the consequence of your privatisation policy."
He also asked whether the Government was aware Serco and G4S were accused of overcharging the British Government Â£50 million for services. Dr Hames replied that the British investigation was "not relevant to this Budget".