Here we go again. Another power emergency in Auckland, a city that's building a reputation for them, writes Grant Bradley.

The reason so many people lost power yesterday is because the substation at Penrose is very old and supplies a disproportionate amount of power to a large area of the city, says an energy expert.

Investors in Genesis Energy, Mighty River Power and Meridian Energy were more than $600 million richer on paper at one point yesterday after their shares were boosted by National's decisive victory.

Since 2002 our electricity market has brought us price rises of 46 per cent above inflation. Why?

Back in 1999, Sam Morgan used a new technology - the internet - to change the way buyers and sellers connected with each other in New Zealand.

Power bills have been rising relentlessly. The two sides of politics are divided on house best to rein that in - competition or regulation.

Power was cut to about 900 homes in Mt Eden during tonight’s Bledisloe Test between the All Blacks and Australia.

New Zealand producers' input and output prices fell in the second quarter of this year as dairy prices declined.

Local govts and power companies are to blame for NZ's inflation rate being much higher than it should have been for the past 10 years, writes Bernard Hickey.

Susan Edmunds asked experts for their top power-saving tips to put more money in your pocket this winter.

A new way of monitoring electricity prices - which calculates what people are actually paying for their power - shows consumers faced a 2.3 per cent hike in the past year.

Tonight will be the third cold night without power for thousands of households as more stormy conditions continue to batter the top of the North Island.

Thousands of people are still without power across the north following a severe storm which battered the country over the past two days.

Q: We have been advised by our power supplier that smart meters are being installed in our area. Can we opt out and keep our original meter?

Power companies are offering some of their best deals door-to-door as competition intensifies for electricity customers.

Keeping chickens and growing your own veges is the first step to being self-sufficient.

India's ambition to skip a generation of electricity technology starting with solar panels on telecommunications towers is being hampered by dust and urban sprawl.

Almost a week after a damaging storm, some Auckland residents were still without hot water last night while the last few houses were having their power restored.

A Titirangi resident says a live power line has been left on his driveway since Wednesday's storm, and Vector is responding sluggishly.

A Glen Eden family are fed up at being without power three days after an Auckland storm, despite numerous calls to their power company.

"I'm not responsible for the rain, surely?" An 85-year-old has been hit with a big bill after a fuse blew on the power pole outside his house.

Another legal expert has raised concerns about the ownership of solar panels fixed to homes, backing this month's warning from Auckland District Law Society vice-president Joanna Pidgeon.

Survey shows young people most mindful with energy use, while Aucklanders least prepared to go without.

Mighty River Power's next chief executive, Fraser Whineray, sees flat demand as being the biggest challenge facing the electricity generator and retailer.

There'll be no hot cup of tea or coffee for several thousand south Aucklanders getting up for work this morning.

There is not a lot to like about residential electricity prices in New Zealand.