Energy

The Electricity Authority says the mistake cost generators about $750,000 and purchasers nearly $2.96 million.

Coal trucks are about to stop rumbling over Buller roads, as the 134-year-old Tawhai Tunnel reopens.

It's a decision incoming president Donald Trump may find difficult to reverse.

The infrastructure investor is more than doubling its forecast as demand grows beyond expectations.

Puerto Rico has long dealt with chronic power outages as its infrastructure crumbles.

Russian gas supplies to Europe via Ukraine are set to end, bringing down the curtain on Moscow's long period of dominance of supply.

Some households in rural north Auckland have been without power for more than 24 hours after high winds brought down trees and branches onto power lines.

A Waikato University scientist says if there was more storage capacity, it could help keep power prices down during dry winter periods.

Repair teams have fixed a tripped circuit, Transpower says, after a lightning strike cut power to at least 50,000 people in the eastern and central North Island - and the power is being restored.

Genesis Energy says it could be generating electricity using biomass at its Huntly station in three to four years.

More needs to be done as consumers face higher power bills over the coming years, a spokesperson for the Electricity Authority admits.

A leading energy analyst estimates this year's power crisis cost the economy $300 million in lost exports. Audio

One of the country's biggest oil and gas producers says it has had a significant gas find in Taranaki.

How a solar power company backed by public funds and one of the world's largest asset managers went into liquidation.