Meridian Energy - the jewel in the Government's portfolio of crown assets - may be worth nearly $2 billion less than it was valued at a year ago when it is finally listed.
In its 2012 statement of corporate intent released in September last year Meridian Energy estimated its commercial value to the Crown to be $6.579 billion as of June 30 based on an independent valuation by accounting firm PwC.
That valuation included a 20 per cent premium for full control of the company which cannot be counted in its float value because the Government only intends to sell up to 49 per cent. Taking account of the premium knocks $1.32 billion off the value.
Meridian also wrote off a further $476 million last week after renegotiating its contract for the Tiwai Point aluminium smelter, putting the value at $4.788 billion.
Phillip Anderson, an analyst at Devon Funds Management, said that based on where rival energy companies Contact Energy and Mighty River Power were trading at, the equity value of Meridian was about $4.675 billion.