Contact Energy - New Zealand's biggest listed electricity company - plans to cut more than 100 jobs as part of a $40 million cost saving drive.

New Zealand shares rose on the first trading day of 2013, following gains on Wall Street, as investors drove up companies that have featured on broker lists for 2013, such as PGG Wrightson and Ryman Healthcare.

Meridian Energy is not a private enterprise but in negotiation with Rio Tinto it must act like one. If it can get a better power price elsewhere, Tiwai smelter must go.

Investment adviser Mark Lister with some shares to consider while you wait for the Mighty River float...

Full year profits at our biggest listed energy company are up 27 per cent.

What are our top CEO's getting paid? Last year pay for NZ's bosses fell for the first time in eight years. See the full list here.

Profits for the first half of the year have slumped at Contact Energy, the stock exchange's largest energy company.

One in four households switched power retailers in search of a better deal last year, according to Powershop.