Source: Pan Demin/Shutterstock.com
Source: Pan Demin/Shutterstock.com

The size of your power bill isn't just about how much electricity you use. The region in which you live also plays a big part. Canstar explores the differences in electricity prices around Aotearoa.

We all rely on electricity to power our lives. And whether you are watching TV, running a heat pump, or putting on a load of washing – you're adding to your electricity bill.

The overall cost of power is broken down into two main parts. You pay for the actual electricity you use, plus a fee for the upkeep of the power grid that delivers that juice into your home.

Nationally, the average power consumer (four-person family) using 22kWh per day on the cheapest low-user tariff available without a fixed-term contract, pays around 40.6c per kWh.

However, depending on where you live in the country, the price can vary, between as low as 35.71c per kWh, in Ashburton, to 50.31c in Balclutha.

Of course, you can't do much about where you live. But by comparing prices from different power providers in your region, it is possible to find better deals.

But what exactly does a good rate look like in your area? In this article, we break down the average electricity costs by kWh and line fees region to region, and provide tips on how to find a great deal.

Power prices per kWh

The per kWh price refers to the cost of the power you use. The table below shows the average regional rates for electricity across the country, listed from high to low.

Location

Price per kWh

Tauranga

29.81c

Greymouth

28.78c

Westport

27.86c

Taupo

27.81c

Kerikeri

27.65c

Blenheim

27.63c

Rotorua

27.56c

Balclutha

27.52c

Gisborne

27.17c

Richmond

26.83c

Nelson

26.71c

Whangarei

26.65c

Cambridge

26.46c

Whakatane

26.14c

Pukekohe

26.09c

Taumarunui

25.97c

Otorohanga

25.97c

Thames

25.91c

Dunedin

25.68c

Hamilton

25.58c

New Zealand average

25.41c

Auckland Central

25.40c

Auckland North Shore

25.35c

Napier

25.26c

Hawera

25.24c

Oamaru

25.09c

Ashburton

25.08c

Invercargill

25.02c

Cromwell

25.01c

Winton

24.98c

Masterton

24.85c

Wellington City

24.80c

Dannevirke

24.77c

Rangiora

24.73c

Timaru

24.73c

Waipukurau

24.72c

Queenstown

24.60c

Kaiapoi

24.35c

Whanganui

24.29c

New Plymouth

23.59c

Paraparaumu

23.49c

Christchurch

23.36c

Palmerston North

23.03c

Data: www.mbie.govt.nz Quarterly Survey of Domestic Electricity Prices to February 15, 2026.

As you can see, the rate you pay for electricity varies considerably depending on your region. While you might not think a few cents makes much difference, the costs add up over a year – especially for households using lots of electricity.

Lines vs energy component

While there's quite a variance in the cost of the electricity we consume, from 23.03c to 29.81c around the country, there's an even bigger disparity in the prices we pay for the line component of our power bills.

In Waipukurau 23.14c per kWh goes towards line component costs, whereas consumers in Nelson pay only 10.52c. That's quite a difference.

Line charges are costs relating to the infrastructure required to get electricity from where it's generated to your home. You can see the average costs below:

Location

Line fee per kWh

Waipukurau

23.14c

Balclutha

22.80c

Kerikeri

22.06c

Cromwell

21.83c

Hawera

21.29c

Masterton

21.29c

Rangiora

20.26c

Kaiapoi

20.26c

Dannevirke

19.60c

Taumarunui

18.85c

Otorohanga

18.85c

Gisborne

18.83c

Paraparaumu

18.74c

Westport

18.56c

Pukekohe

18.23c

Palmerston North

18.20c

New Plymouth

18.20c

Whanganui

18.20c

Blenheim

18.04c

Greymouth

18.01c

Oamaru

17.55c

Timaru

17.12c

Winton

17.07c

Thames

16.96c

Whangarei

16.57c

Cambridge

16.46c

Whakatane

16.20c

Queenstown

15.65c

New Zealand average

15.19c

Tauranga

14.49c

Auckland North Shore

14.30c

Napier

14.29c

Auckland Central

14.24c

Dunedin

13.96c

Rotorua

13.60c

Taupo

13.60c

Hamilton

13.53c

Christchurch

13.24c

Invercargill

12.30c

Wellington City

11.27c

Richmond

10.89c

Ashburton

10.63c

Nelson

10.52c

Data: www.mbie.govt.nz Quarterly Survey of Domestic Electricity Prices to February 15, 2026.

Why is there such a big difference in line component costs?

The cost of delivering power to your home differs depending on where you live, due to the following reasons:

  • Population density – costs are split across consumers. The more consumers to bear the line costs, the lower they will be.
  • Distance from power station – how far the power needs to travel (from the nearest power station) dictates the level of infrastructure needed, and the cost of maintaining that infrastructure.
  • Terrain – do the power lines need to traverse mountains or forests, or do they run through flat urban areas?
  • Commercial/industrial users – commercial and industrial businesses consume a lot of energy and are typically supported with significant infrastructure. A large presence/absence of them in your region can impact lines costs.
  • Competition – there are over 30 lines companies in New Zealand that are in charge of the infrastructure needed to deliver power to your home. But some regions are only serviced by one. These companies face no competition or incentives to keep their prices low.

Total costs

When you combine the two sets of prices listed above – the line charges and energy costs – you get an overall picture of electricity costs around the country. And, as you can see, there's a big difference between living in Ashburton and places such as Balclutha and Kerikeri, where power is over 14c more expensive per kWh.

We've also highlighted the big increases in power prices over the past year, up over 15% in some areas. And, unfortunately, they're likely to rise further over the next five years. For more on the price rises see below.

Region

Price per kWh Feb 25

Price per kWh Feb 26

Price increase %

Balclutha

 44.50c

 50.31c

13.1%

Kerikeri

 45.42c

49.71c

9.4%

Waipukurau

43.25c

47.86c

10.7%

Cromwell

42.85c

46.84c

9.3%

Greymouth

44.41c

46.79c

5.4%

Hawera

39.49c

46.53c

17.8%

Westport

45.45c

46.42c

2.1%

Masterton

39.48c

46.14c

16.9%

Gisborne

40.65c

46.00c

13.2%

Blenheim

41.85c

45.67c

9.1%

Rangiora

39.39c

44.99c

14.2%

Taumarunui

40.49c

44.83c

10.7%

Otorohanga

40.49c

44.83c

10.7%

Kaiapoi

39.01c

44.61c

14.4%

Dannevirke

40.45c

44.38c

9.7%

Pukekohe

39.94c

44.32c

11.0%

Tauranga

 38.87c

44.30c

14.0%

Whangarei

38.70c

43.21c

11.7%

Cambridge

36.11c

42.92c

18.9%

Thames

37.46c

 42.87c

14.4%

Oamaru

37.54c

42.64c

13.6%

Whanganui

36.34c

42.49c

16.9%

Whakatane

36.16c

42.34c

17.1%

Paraparaumu

37.60c

42.23c

12.3%

Winton

39.35c

42.05c

6.9%

Timaru

36.27c

41.85c

15.4%

New Plymouth

35.55c

41.80c

17.6%

Taupo

36.78c

41.41c

12.6%

Palmerston North

35.31c

41.23c

16.8%

Rotorua

36.44c

41.15c

13.0%

New Zealand average

35.67c

40.60c

13.8%

Queenstown

36.89c

40.25c

9.1%

Auckland North Shore

34.23c

39.66c

15.8%

Auckland Central

34.13c

39.65c

16.2%

Dunedin

35.54c

39.64c

11.5%

Napier

35.51c

39.55c

11.4%

Hamilton

33.97c

39.11c

15.2%

Richmond

34.69c

37.72c

8.7%

Invercargill

33.24c

37.32c

12.3%

Nelson

34.35c

37.22c

8.4%

Christchurch

31.93c

36.60c

14.6%

Wellington City

32.05c

36.08c

12.6%

Ashburton

32.67c

35.71c

9.3%

Data: www.mbie.govt.nz Quarterly Survey of Domestic Electricity Prices to February 15, 2026.

Rising power bills

Over the next five years, all Kiwi households will face higher power costs, for two main reasons:

  • A rise in transmission costs
  • The scrapping of the low-user electricity tariff

Rise in transmission costs

Transmission and line costs are regulated by the Commerce Commission. And due to inflation and rising levels of investment in the power network, the lines companies have been given permission to raise their prices over the next five years.

Over the past year, power customer have seen their bills increase between $11.50 to $28.75 per month. Here's a breakdown of the price increases by local lines companies:

Average price increases per month, from April 2025 - April 2026

$11.50

$17.25

$23

$28.75

Electricity Invercargill
Nelson Electricity
Orion NZ
Unison Networks
Vector Lines
Wellington Electricity

EA Networks
Firstlight Network
Horizon Energy
Network Tasman
Powerco

OtagoNet

Alpine Energy
The Lines Company
Top Energy

And over the next four years, the Commerce Commission has approved further additional annual price hikes of, on average, between $5.75 and $17.25 per month:

Average price increases per month, from April 2026 - April 2030

$5.75

$11.50

$17.25

Alpine Energy
Electricity Invercargill
Horizon Energy
Nelson Electricity
Network Tasmania
Power Co
The Lines Company
Vector Lines
Wellington Electricity

EA Networks
OtagoNet
Orion NZ
Unison Networks

Firstlight Network
Top Energy

Scrapping of the low-user electricity tariff

For many people, power bills have also increased due to the scrapping of the low-user electricity tariff.

The five-year phase-out was designed to make the electricity market fairer. But it's meant that low-user power consumers have faced annual price hikes due to higher daily charges.

The hikes have added an extra 0.30c per day to low-users' bills each year, which works out to roughly an extra $550 over five years.

The annual price rises have kicked in each 1 April, and this year marks the fifth year of the phase-out.

Currently, the low-user daily tariff is capped at $1.80 per day, up from 30c per day prior to 1 April 2022. And from April next year, the cap will be removed altogether.

Finding a better deal

Discovering exactly how much you're paying for your electricity shouldn't be tricky. Your daily fixed charge rate and your total variable usage charge should be clearly shown on your bill. Along with a small Electricity Authority levy, which goes towards running the government agency.

But it certainly pays to do your research, compare energy companies and shop around.

To find the rates of an electricity retailer, visit its website and look for a pricing section. Most retailers will require you to insert your address in order to receive a quote.

When comparing power costs between retailers, answer the following questions to ensure you secure the best rates:

  • Do the prices quoted on the power company's website include GST?
  • Have you chosen the correct user tariff for your household?
  • Does the retailer offer off-peak power discounts that you could use to your benefit?
  • Is it an open or fixed-term contract?
  • Are there any additional perks on offer, such as hours or days of free power?
  • Does the provider have an app, or offer tools, that allow you to track your power usage?
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Bruce Pitchers is Canstar's NZ Editor. An experienced finance reporter, he has three decades’ experience as a journalist and has worked for major media companies in Australia, the UK and NZ, including ACP, Are Media, Bauer Media Group, Fairfax, Pacific Magazines, News Corp and TVNZ. As a freelancer, he has worked for The Australian Financial Review, the NZ Financial Markets Authority and major banks and investment companies on both sides of the Tasman.
In his role at Canstar, he has been a regular commentator in the NZ media, including on the DrivenStuff and One Roof websites, the NZ Herald, Radio NZ, and Newstalk ZB.
Away from Canstar, Bruce creates puzzles for magazines including Woman’s Day and New Idea. He is also the co-author of the murder-mystery puzzle book 5 Minute Murder.


Important Information

For those that love the detail

This advice is general and has not taken into account your objectives, financial situation or needs. Consider whether this advice is right for you.