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Mercury Review

Energy retailer and generator Mercury provides a range of residential and business services across New Zealand, stating it’s “on a mission to help Kiwis enjoy our clean, green, renewable energy in more wonderful ways”.

The Mercury brand was launched in 2016, with the merger of Mighty River Power and Mercury Energy. Mercury is listed on the NZ stock exchange and the Australian stock exchange. The New Zealand government holds a legislated 51% shareholding in Mercury.

Mercury’s generation comprises hydro and geothermal, making its power 100% renewable.

What’s on offer from Mercury?

Mercury’s electricity and gas prices vary region by region. You can search for the pricing in your region on Mercury’s website by entering your address.

Mercury’s plans break down into three bands:

Open term

  • No fixed term or break fees
  • Prices are not fixed

1 year fixed

  • $75 signing on credit
  • Lower rates
  • Fixed rates
  • Break fee applies

2 year fixed

  • receive $200 signing on credit or $250 moving/cleaning services voucher
  • Lowest rates
  • Fixed rates
  • Break fee applies

All Mercury plans offer:

  • Prompt payment discount of 10%
  • Additional 2% discount if paying by direct debit and receiving bills by email
  • Regular free power days
  • Complete fun challenges on the Mercury app, earn Mercury Dollars, then exchange them for bill credit or Airpoints Dollars
  • Earn Airpoints Dollars on your power bill
  • Special EV fuel packages
  • Add piped gas to your chosen electricity plan for a 15c Dual Fuel discount
  • Annual Price Plan Review, to ensure you’re on the correct plan for your usage needs

Mercury also offers a number of solar panel packages, including a solar battery storage package. Mercury will also buy back any extra energy you generate.

Customer service

Mercury’s website addresses a number of topics via its FAQs page. Consumers can also contact Mercury by phone or email.

Account management

Mercury customers can monitor and manage their accounts online or via the Mercury app. They can:

  • Pay their bill
  • Check their account balance and payment due date
  • Track their usage
  • Update their account details
  • Set up credit card payments
  • Review their bills
  • Change to online billing

Customers have a number of options when it comes to making bill payments with Mercury, comprising:

  • Direct debit
  • Online via My Account
  • Phone
  • Internet or telephone banking
  • Automatic payment
  • In person at NZ Post shops

Note: Details are correct at June 16, 2022.


You should always compare features and providers before signing up for an electricity plan. Fortunately, Canstar Blue rates power companies on a range of features, including customer satisfaction and value for money. Click below to see how Mercury performs.

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