Contact Energy, which last year said it would focus on reducing debt, is considering a $100 million offer of bonds it plans to list on the NZX debt market.

Mercury Energy boss Fraser Whineray is trying to make customers feel better about the power they buy.

The battle of what's being touted as a tax on the sun is heating up as an independent appeals authority prepares to review an Electricity Authority decision.

Energy Minister Judith Collins has signalled there could be announcement made next week about an inquiry into rising petrol margins.

Genesis Energy, the country's largest energy company by customer numbers, says electricity retail connections fell by 1.2 per cent.

Donald Trump took steps to advance construction of the controversial Keystone XL and Dakota Access oil pipelines.

Todd Corporation has won backing from the Western Australia government for a $6 billion iron ore mining and transport project.

Labour leader Andrew Little is proposing a new solution to recover bodies in the Pike River coal mine.

Ever met someone who just wasn't into music? They might just have a condition called specific musical anhedonia.

Many women who do the recommended amount of exercise may be harming themselves by eating too little, a survey indicates.

Transport Minister Simon Bridges has bought two electric cars, and is trying to convince other National MPs to do the same.

What is 2017 looking like for your business? I am expecting 2017 to be a year of positive change for Genesis Energy. In my first

NZ Herald Business Leader of the Year has pulled off one of the big deals of the decade and is a petrol retailer determined to fight climate change

Coalminer Bathurst Resources is being sued for US$40 million by L&M Coal Holdings.

The Pike River Mine controversy took yet another turn today with Parliament's Commerce Committee agreeing to hear submissions on the sealing of the mine.

It will be a dark and quiet night for some people in Manurewa, after a crash toppled a power pole and cut power.

New Zealand Oil & Gas says it's considering an offer to buy its 27.5 per cent interest in the Tui oilfield.

The very health and safety changes which the Pike River disaster prompted make re-entering the mine difficult, Prime Minister Bill English says.

Google has said by next year it will be purchasing as much renewable electricity as it uses across its vast operations.

The Electricity Authority says consumers will save around $300 million a year following its decision to end power station subsidies.

The head of Genesis Energy wants to move his company to being an integrated energy management business but says this could expose it to overseas competition.

A deal to cut oil production overseas is expected to make the summer road trip more expensive.

The New Zealand dollar was little changed against the greenback ahead of US non-farm payrolls tonight.

A small band of protesters stood outside Fonterra's headquarters in downtown Auckland today to demonstrate against the co-operative's extensive use of coal.

Tired of paying individual household bills? This could be a game changer.

The New Zealand dollar fell below 71 US cents after stronger-than-expected private payrolls.

Elon Musk, the man behind Tesla and SpaceX, has made a lot of enemies during his time in business.

A small island in American Samoa is making the switch from diesel generators to 100 per cent renewable energy.

WATCH: Meet the finalists of this year's Deloitte Top 200 Company of the Year Award.

Santa is not coming to Dunedin-based lines company Delta this year after chief executive Grady Cameron cancelled end-of-year function.