Tesla Motors' new stationary-storage unit making battery packs will help founder Elon Musk expand beyond electric vehicles.

Transport Minister Simon Bridges wants to increase the use of electric and hybrid cars in new Zealand

A growing consensus is emerging from the likes of BP, the International Energy Agency, shale wildcatters and even the Saudis.

The Dunedin City Council's group debt has dropped by more than $25 million on the back of stronger results by its companies, new figures show.

Japan's push to keep power flowing after it shuttered its nuclear program may best be illustrated by 73 million light bulbs.

In the midst of the price swoon, many executives and workers remain confident the oil-sands industry will pull through.

Mighty River Power's $69 million writedown on two failed geothermal developments overseas is a lesson for Contact Energy, says an analyst.

Kiwi energy company Powershop is expanding its Australian market before targeting Europe and Asia next year.

Meridian Energy has raised its dividend and says it intends to return $625 million of capital to shareholders over the next five years.

Dunedin residents are angry after they lost power for eight hours a week earlier than expected - saying the power company's attitude to the mistake was 'cavalier'.

New Zealand Oil & Gas, the exploration company, turned in a loss in its first half after the global drop in oil prices.

Meridian Energy, which generates about 30 per cent of the country's electricity, lifted first-half earnings 21 per cent.

Contact Energy could be heading for a showdown with minority shareholders over what to do with a $1 billion pot of cash.

New Zealand shares fell yesterday, led by Contact Energy after it flagged plans to invest offshore. Genesis Energy and Meridian Energy declined as enthusiasm for the sector cooled.

New Zealand Oil & Gas is fulfilling analysts' predictions that falling oil prices would prompt mergers and acquisitions by mounting a full takeover bid for Cue Energy, just two months after....

The CBOE Crude Oil Volatility Index climbed to 63.14 on February 5, the highest level in almost six years.

A growing portion of China's toilet waste is converted into fertiliser and biogas.

Meridian Energy is replacing two of its transformers at its Manapouri power station after finding a fault with cooling units.

Mighty River Power and Meridian Energy will keep the price they charge for electricity on hold this year for the third year in a row.

Oil bulls finally caught a break as prices capped their first weekly advance since November.

Oil advanced after the International Energy Agency lowered forecasts for supplies from outside Opec and an industry report showed US companies had reduced drilling activity.

Hydro lake levels are falling and wholesale power prices rising as drought threatens in parts of the country.

Kiwis should have more disposable cash as petrol prices fall around the country, but consumer groups say the amount we fork out at the pumps should be lower still.