Airbus’ five A350-900 test aircraft took to the skies for an impressive formation flight on September 29 2014. Video supplied by Airbus.

Prime Minister John Key says an inquiry is needed into whether there was sufficient back-up in place after the power cuts in Auckland yesterday - but has warned that if that inquiry finds better backup systems are required it will contribute to higher power prices. Mr Key said there would need to be an inquiry into what went wrong and the response to that. "We know there was a fire, the question is was there enough redundancy built in there." He said if that inquiry found greater contingency systems were needed, it would have a cost. Vector was a controlled monopoly and its charging and costs were set by the Commerce Commission.

Prime Minister John Key gives his thoughts on the New Zealand dollar and the Reserve Bank intervening to try and push down its value.

Peter Mence, chief executive of Argosy Property speaks to property editor Anne Gibson as part of the Meet the CEOs video series.

Tom Nickels, chief executive of Waste Management, New Zealand’s biggest refuse collector and landfill owner. After a successful stint as an NZX-listed stock, Waste Management was taken over by Australia’s Transpacific in 2006. Early this year, China’s Beijing Capital bought the company for $950 million. Beijing Capital intents to invest more than $98 million in the company, which is enjoying double digit earning growth.

The pilots' view of a formation flypast by a Swiss Airbus A330 and the Patrouille Suisse at AIR14 in Payerne. Join the nine pilots in their cockpits and enjoy the air show from an angle you’ve never seen it from before

Greenpeace protesters have disrupted a petroleum conference being held in Auckland this morning, bursting into a room while Energy Minister Simon Bridges was speaking. About half a dozen women breached tight security and lobbed high pitched noise emitting devices under the seats. They were then bundled out of the room by a team of security staff and unfurled banners disputing Statoil's exploration programme in Northland. The women were dressed in business suits and had apparently faked identification and conference credentials to get into the room.

Kiwis eager to get their hands on the new iPhone 6 and 6+ have queued overnight - and in some cases, for a week online. The highly anticipated phone was officially released in New Zealand at 12.01 this morning. Vodafone stores in Auckland, Wellington, Christchurch and Dunedin opened their doors at 12.01am for keen Apple fans. Spark (formerly Telecom) tried something different, allowing customers to pre-book their places in online queues by registering an oversized novelty "emoji" - pictures popularly used in text messages - which are printed off and hold their space in the queue.

Solid Energy has fronted up to answer claims that it has been technically feasible to re-enter the mine for almost a year.

APN, the company which owns the New Zealand Herald, is to relaunch as part of a new brand, NZME. APN, The Radio Network and GrabOne, are unifying their print, radio, digital and e-commerce brands under New Zealand Media and Entertainment.

NZ tourism has released a new video as part of a new campaign encouraging young visitors to try five extreme activities within a day. Watch adventurer Chuck Berry try them out in just one hour.

This time lapse video shows the interior of a Qatar Airways A380 superjumbo being installed

John Dalzell is chief executive of Waterfront Auckland, a council-controlled organisation whose biggest project is revitalising the western area at the Wynyard Quarter.

Fran O'Sullivan presents the 2014 Mood of the Boardroom report from New Zealand's top CEO's. Most are expecting revenue growth and bottom line profit increases. Overall, 51 per cent of respondents are feeling more optimistic about the New Zealand economy than they were last year, and 54 per cent are more positive about the prospects for their own industry.

Watch back the New Zealand Herald's Mood Of The Boardroom event, with National’s Bill English and Labour’s David Parker debating economic policy before an audience of business leaders at Auckland's Langham Hotel.

Mood of the Boardroom 2014 has been presented and Anne Gibson and Jamie Gray get CEO reaction and we hear from the two finance spokesmen David Parker and Bill English.

New Zealand Herald journalist Grant Bradley finds out how giant Royal Caribbean cruise ships are built at the Meyer Werft shipyard in Papenburg, Germany.

Air New Zealand's last jumbo jet, the Boeing 747 is about to leave New Zealand this week. This video gives us insight into the history and legacy of this mighty aircraft, and a final goodbye from the airline as it is replaced by the much newer and more efficient 787 Dreamliner

New Zealand billionaire Graeme Hart has launched his new superyacht called Ulysses in Norway.

Murray Jordan, CEO Foodstuffs, NZ’s biggest supermarket business with New World, Four Square, Pak n Save and other brands.

A behind the scenes glimpse into the making of Emirates’ 50th A380 aircraft. It takes 800 workers just 65 to 80 days to assemble, install, test, paint, furnish and deliver an Emirates Airbus A380, the iconic double-decker aircraft that first entered Emirates service in 2008. Video supplied by Emirates.

Herald aviation writer Grant Bradley flew into Auckland on the world's newest commercial big jet - the A350XWB. See part 2 of his report looking inside the plane, hearing from the pilots and Airbus technical experts.

Sarah Stuart’s ’12 Questions’ video series continues with a discussion with Associate Professor Suvi Nenonen of the University of Auckland Graduate School of Management. Dr Nenonen is a world-leading researcher in the new business strategy of ‘market shaping’.

Pop Up Now - see here how a demonstration of how working store can be 'popped up' and operational within 10 minutes.

Prime Minister John Key is on the election campaign trail and gives his update on the NZ economy.

A new geothermal and ground water laboratory recently opened at GNS Science near Taupo will be the only one of its kind in the Southern Hemisphere.

Herald aviation writer Grant Bradley flew into Auckland yesterday on the world's newest commercial big jet - the A350XWB. See inside the plane and hear from its pilots here.

TVNZ has joined Sky TV in banning Slingshot's latest ads promoting the ISP's 'Global Mode service.'

Kiwi owns Sylvia Park, ASB North Wharf, Vero Centre on Shortland St (tallest office block in NZ), Centre Place Hamilton and the rundown LynnMall shopping centre out west which it’s going to do up.