Mighty River Power has warned would-be investors of a long-term drop in electricity prices which would hit the value of its shares should the Tiwai Point aluminium smelter close.

The Government has set a price range of $2.35 to $2.80 per share for the partial privatisation of Mighty River Power.

Almost 180 Christchurch landowners have chosen not to accept the Crown offers on their red-zoned properties.

When people like the PM talk of an orderly transition to a post-smelter environment, they are talking about the scrapping of generating capacity, writes Brian Fallow.

New Zealand's largest solar installation has been put on top of the refurbished Shed 10 on Auckland's waterfront.

Angry Christchurch red zone property owners are launching a legal battle to force Gerry Brownlee to change his mind over compensation, but he says it is "wishful thinking".

Prime Minister John Key says it will be "bleak" for Canterbury residents who chose not to take up the Government's buy-out offer for land in the red zone.

Contact's share price dropped this morning, partly in response to uncertainty over the future of the Tiwai Point aluminium smelter.

Auckland Museum is being touted as a green example for other city organisations after it succeeded in slashing its carbon footprint by 30 per cent in just two years.

The Tiwai Pt power price stoush will probably have a small negative effect on the price of Mighty River - but it's not a showstopper say sharemarket analysts.

The Government has opened discussions with Tiwai Point aluminium smelter's ultimate owners Rio Tinto in a bid to broker a deal after talks between the smelter and Meridian Energy reportedly broke down.

Tiwai Pt aluminium smelter's owners have contradicted a report from Meridian, saying they think a power deal can be agreed on.

Potential investors in Mighty River Power, Genesis Energy and Meridian will be exposed to the financial impacts caused by any new charges linked to water or geothermal use and land resumption.

Editorial: If anything useful has been learned from the Labour Party's pursuit of Solid Energy, it is that there are severe limits to the present Government's asset sales.

More than 350 young people have signed on as building apprentices since a $2000 bonus became available last Wednesday for the first 10,000 apprentices who sign up.

The 68 boxes carried onto Parliament's forecourt this afternoon contained 393,000 signatures. It is thought to be the biggest ever petition in support of a citizen's initiated referendum.

The Government will push ahead with asset sales regardless of a referendum on the issue, Finance Minister Bill English says.

The carbon fibre Solar Impulse plane has the wingspan of a 747 but only weighs as much a Honda Prius.

Geothermal is the ultimate renewable energy source - and one reason why Mighty River Power is kicking off the government's asset sales. Energy reporter Grant Bradley visits the company's brand-new plant

Maybe you've done a backflip or two in your time, but were you ever driving a Mini Cooper at the time?

Christchurch power company Orion has asked the Commerce Commission for permission to hike prices to recover earthquake rebuild costs.

Mighty River Power says the driest summer in at least five years will affect its full-year result as it cuts back on generating power from its Waikato River dams.