Delta and Aurora are being investigated for failing to replace dangerous power poles in Dunedin.

Vector has opened a big Tesla battery storage bank in Auckland which it says will help defer costly building of less flexible infrastructure.

An unlicensed sparkie's company carried out "potentially dangerous" electricial work at a school.

The Electricity Authority is to undertake another round of submissions on its politically charged proposals.

The initiative represents some 1,450 vehicles - a 75 per cent increase in the total number of EVs on New Zealand roads today.

Former Health Minister Tony Ryall has been appointed as the next chair of grid operator Transpower.

The "interconnector" that South Australia relies on for power is at the centre of the outage that cut power for the whole state. Here's what went wrong.

Nine years after Westpower first proposed a hydro-electricity scheme on the Waitaha River, the Department of Conservation said it had given approval in principle.

Hopefully you enjoyed yesterday's Sunday sunshine as the rest of the week is set to pack in.

Our biggest electricity retailer says lower power, gas and oil prices, along with competition, has hit its annual earnings.

Mercury, formerly known as Mighty River Power, has delivered a 2.3 percent lift in operating earnings and declared a special dividend.

The businesses which bought the most cheap, worthless carbon credits to meet their climate change commitments have been revealed in a new report.

Australia has blocked a A$10 billion deal to lease its biggest electricity grid to Chinese and Hong Kong investors because of "national security".

Around 400 properties in Hawke's Bay and Taupo have been without power since wild weather hit on Saturday morning, and it's unlikely to be restored to many for more than a week.

You probably don't know him, but Al Kahn is likely to have had an enormous influence on your life.

Auckland-based Mercury has swapped its Roman god logo for a bee.

Online electricity retailer Flick Electric has raised a further $5 million from shareholders to fund its growth.

Power prices are an ongoing worry for many people, who hold back heating their homes in a bid to cut down on the power bill, a survey shows.

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

Cheaper in the South, dearer in the North - a charging proposal for electricity transmission has been released today.

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

Genesis Energy has negotiated a high price from other generators who want to keep them as back-up.

Air New Zealand is buying electric vehicles for its ground fleet in a move that will boost the EV sector in this country.

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

Emergency services have contacted Vector to advise them of the issue which happened at around 7:30pm.

Contact's selling its Auckland power station to a property developer.

Aucklanders are cranking up the air con to cope with the rising heat and humidity this week, causing a spike in electricity usage, Transpower says.

An electricity data set shows all the recorded times animals have cut part of power grids around the world.

Former Contact Energy director Phil Pryke is an Australian prawn fisherman-turned-hippie, who washed up here in the mid-1970. Pattrick Smellie writes that he has never been far from controversy since.