The Electricity Authority has published a series of proposals on more efficient ways to charge for the national grid.

Mining giant Rio Tinto has pulled its support for any expansion of Kakadu's Ranger uranium mine after its operator put the project on ice.

Despite speculation about its future in NZ, Origin Energy says it's committed to its investment in Contact Energy.

A few things you can do to make your lithium-ion batteries last longer, whether in an electric car or a smartphone.

The boss of a Z Energy rival says its planned acquisition of Caltex operator Chevron NZ could impact competition in the fuel market.

Vector says a potential buyer has expressed interest in its gas transmission business.

The sale of Caltex is another example of the exodus of multi-national oil companies from the New Zealand market.

Z Energy shares have soared 21 per cent on news it has bought the Caltex chain of gas stations.

Contact Energy shares jumped more than 14 per cent after announcing it will increase returns to shareholders.

Is the Govt really getting double the amount of dividends from its sold down power companies?

Producer input and output prices fell in the first quarter, reflecting lower fuel costs and weakness in prices of meat and dairy products.

Infrastructure investor Infratil says it'll be taking a more wary approach to potential new acquisitions.

New Zealand shares rose yesterday, paced by Genesis Energy, Contact Energy and Mighty River Power in a relief rally as Meridian Energy's instalment came due.

As video streaming services surge in popularity, Kiwis are consuming far more internet data than ever before.

Foreign Minister Murray McCully has taken Shane Jones, David Shearer and Winston Peters with him for his trip to the Cook Islands, where he is holding talks.

Vector chief executive Simon Mackenzie believes Tesla's new batteries will help transform the energy sector.

Z Energy says work has slowed on its $20 million biodiesel plant but it will be finished in the next nine months.

The mood was grim as Solid Energy employees filed out of the NBS Theatre in Westport today, just minutes after finding out the company was cutting 151 jobs, plus up to 15 contracting jobs - from its Stockton mine. The company is cutting 151 jobs, but some of the losses will be made up of unfilled vacancies, meaning 113 current staff will lose their jobs. This cuts the number of staff at the mine from 397 to 246. It follows Solid's decision to cut 185 jobs a year ago.

The West Coast mining industry has been dealt a heavy blow today, with 113 jobs to go at Solid Energy's Stockton mine.

Z Energy posted a 10 per cent increase in full-year operating earnings, as fuel and refining margins improved and the service station chain sold more fuel.

Job losses on the West Coast have been foreshadowed ahead of meeting between Solid Energy managers and workers at the Stockton Mine tomorrow.

Vector has formed a partnership with Tesla to bring its revolutionary home and business batteries to New Zealand.

King Country Energy, the biggest electricity retailer in the region, is pushing ahead with plans to move its listing to the NZX from the Unlisted platform, saying new rules could force the Unlisted....

Scientists have found around 766 individual methane gas flares off the coast of Gisborne - a “major advance” for science and a first for New Zealand.

A top US Government official visiting the country has praised New Zealand as a “great model” for other countries working to boost their renewable energy generation.

Genesis Energy shares are down after the company cut its forecast for annual earnings after losing electricity and gas customers amid increased competition.

Solid Energy shelled out $4 million for redundancies between July and December last year, mostly for workers from the Stockton opencast mine.