Labour deputy leader Grant Robertson has denied the party's plan to set up a single purchaser for power is intended to spook investors in the Mighty River Power float.
Last week, Labour and the Greens announced they intend to set up a single purchaser of electricity, called New Zealand Power, which would then pass on savings to consumers.
The announcement forced the Government to temporarily halt the sale of Mighy River shares to update the offer document.
Share sales resumed as of midnight on Monday, though people have until 1 May to withdraw their application.
Mr Robertson told Radio New Zealand's Morning Report programme on Tuesday that the timing of the policy announcement was designed to give New Zealanders 18 months' notice of moves to relieve power prices in the event of a change of government after the 2014 election.
The National Government is not changing its estimate of how much money the partial sale of the state-owned energy company would raise.
Finance Minister Bill English told Morning Report the estimate for the revenue remains at $5 billion to $7 billion.
PM insists share float still on track
Prime Minister John Key said the Mighty River Power share float is still on track, despite the temporary suspension of the share offer.
Mr Key said that if the Opposition had announced their policies earlier, they would have been referred to in the original Mighty River Power prospectus, but the suspension of the share offer makes no difference to the sales programme.
The Labour Party said it wanted to put out a robust and costed policy before the share offer opened, while the Green Party said it doesn't think it could have released its policy any earlier.
