Energy retailer and generator Mercury provides a range of residential and business services across New Zealand.
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.
Open term
- No fixed term or break fees
- Prices are not fixed
1-year fixed
- $150 signing on credit
- Lower, fixed rates
- Break fee applies
Mercury offers a range of fibre and wireless broadband plans that can be bundled with electricity services for discounts and Samsung appliance offers, as well as multi-fuel and mobile phone bundle discounts.
All Mercury plans offer:
- Complete challenges on the Mercury app, earn Mercury Dollars, then exchange them for bill credits or rewards
- Anniversary free power days
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 09/10/25.
