The Commerce Commission wants to look at potential barriers to end-user uptake of ultra-fast broadband.

Soaring wholesale power prices last week have prompted complaints from 14 organisations, including ASB bank, Telecom, Vodafone and the owner of the Marsden Point oil refinery.

Scott Technology has bought a controlling stake in a local electromagnet maker and said it is looking at a rights issue to help fund the deal.

State owned Solid Energy has confirmed it wants to buy the Pike River mine, but getting it back into production would be a big job.

Mighty River Power is lifting its pre-tax earnings forecast by up to 7.5 per cent as it sees the benefits of $1 billion invested in new geothermal power stations.

Brian Cox is passionate about how we could use what now is simply wasted, as well as bits of surplus land which can be used to grow sources of energy in different forms.

Network company Vector's half year net profit has dropped 2.8 per cent to $98.5 million.