Consumer prices rose less than expected in the June quarter as cheaper meat and domestic airfares offset a recovery in petrol prices

Combining solar panels and batteries would make homes fully self sufficient, but Powerwalls don't provide capacity to make it affordable.

The oil industry is fighting a generation gap.

COMMENT: The number of New Zealand households generating their own electricity from the sun climbed 77 per cent.

Switching power companies has hit a record and new figures show Kiwis could be better off if they change suppliers.

The New Zealand division of British Petroleum more than tripled net profit in 2015.

The New Zealand division of ExxonMobil narrowed its 2015 loss even as revenue dropped 15 per cent.

Helen Twose talks to three winners of this year's EECA Awards for energy efficiency.

Z Energy is confident of the savings it can make from the $785m acquisition of Chevron's Caltex and Challenge! chains.

Energy Minister Simon Bridges says the abundance of renewable electricity has made New Zealand complacent about energy productivity.

Z Energy is about to open the country's first commercial scale biofuels plant in a bid to become part of the emissions solution.

Entrants in the EECA energy awards saved or generated the equivalent of the annual energy use in New Plymouth during the past year.

Some power customers could be in for a nasty jolt if proposed changes to national electricity grid costs go ahead.

The company said earnings had been impacted by the settlement of its dispute with Customs.

The former state owned enterprise will soon be known as Mercury.

New Zealand shares fell as demand dried up ahead of a Reserve Bank update, with Meridian Energy and Vector hit hardest.

New Zealand shares were mixed. The NZX 50 Index reached a record high but more companies fell.

Z Energy will get back $9.5 million of the amount it paid last year to settle a dispute with New Zealand Customs.

Henri Eliot talks publishing a skills matrix that provides shareholders with the information needed to evaluate a board's skill set mix.

Electric vehicles are far more useful to New Zealand for reducing carbon emissions than rooftop solar power, says a new study

New Zealand could become a major exporter of gas to Asia, Energy and Resources minister Simon Bridges says.

NZ Aluminium Smelters will go to the Supreme Court in a bid to overturn earlier decisions on the payment for statutory holidays that fell on a weekend.

WATCH: On the latest extra episode of The Economy Hub, guest panelists Bernard Doyle and Aaron Quintal discuss markets rebound.

Julian Kardos, managing director of Electric Kiwi, talks five things every Kiwi should know about electricity.

An expert from Norway says if New Zealand is serious about getting motorists into electric cars the government needs to act.