Retail market

For most New Zealand electricity customers, there's a lot of retailers and brands to buy electricity from.

About the retail market

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Our role

What we do

We're responsible for the rules and processes behind the accuracy of metering, meter reading and switching power companies.

We work to reduce barriers to new retailers entering the market to increase competition and give households and businesses more choice across New Zealand.

We're not responsible for regulating retailers' prices or for investigating complaints about retailers or distributors.

Electricity registry

New participant?

Find out how to register and participate in the electricity industry.

More about the retail market

Learn about how different parts of the retail market operate and interact, our responsibilities and industry participants' obligations. This section includes general information, as well as more technical information for industry participants.

Audits and certifications

All industry participants are required to provide us with audit information. This provides assurance that buyers are correctly invoiced for purchases and that sellers comply with legislation.

Learn more


We're responsible for electricity metering standards and requirements. We approve test houses to calibrate, certify, install and maintain metering installations in accordance with the Code.

Learn more


Reconciliation is the process of how electricity flowing in the power system is accurately allocated to buyers and sellers for invoicing. The reconciliation process is set out in Parts 10 and 15 of the Code.

Learn more

Retailers' obligations

Retailers must comply with their industry obligations as set out in the Code. We have industry guidelines to support retailers to implement best practice.

Learn more

Tools and resources for industry

We have many tools for participants in the electricity industry to track breaches, submit reports, access data and financial resources.

  • Participant register

    A register of all participants in New Zealand's electricity industry. Use this register to apply to become an industry participant and for a participant identifier.

    View register
  • Electricity registry

    For industry participants to manage reconciliation, invoicing and consumer switching processes. It holds information on all the installation connection points in New Zealand.

  • Information exchange

    Regular and/or large volumes of information can be efficiently exchanged between industry participants using the electricity information exchange protocols.

  • Your meter

    Finds all of the information on home and business connections on the electricity network.

    Your meter
  • Compliance portal

    Use this portal to report an alleged breach, view breach reports and decisions.

  • Trading conduct reports

    Learn what's happening in the wholesale market and see if any trading periods have been highlighted for further analysis.

  • Industry guidelines

    Electricity regulation is complex and technical. Find industry-specific best practice guidance here.

  • Consumer data

    Learn how to access connection, consumption and tariff information.

    Learn more

Electricity Industry Participation Code 2010

The rules for all industry participants.

Report a breach

Industry participants are obliged by law to report all Code breaches.

The place to go for all electricity data

Access electricity data, market performance metrics and analytical tools.
Visit EMI website