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A fundamental requirement of competitive and efficient electricity markets is access to reliable data and performance metrics.

This Electricity Market Information website (EMI) is the Electricity Authority's avenue for publishing data, market performance metrics, and analytical tools to facilitate effective decision-making within the New Zealand electricity industry.

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Market insights

New report released - entry and exit in the retail market

Barriers to entry and exit impact market dynamics. Monitoring the entry and exit of firms in the retail market, therefore, enables insights to be drawn about these barriers, and market performance more generally. We've added a report that tracks entry and exit of parent companies, traders, and brands in the retail electricity market. The retail market has seen a significant number of new retailers begin operations, with 22 retail parent companies entering since the beginning of 2013 (and three exiting). This represents a net increase of 19 retailers, up 135 per cent on the 2013 numbers. Some of these companies are very small and may only operate locally, while others are challenging competitors across the whole country. Hover over the markers to see who entered or exited.

Region: New Zealand Entity: Retail parent company Market segment: All ICPs

Growth in market share of entrants

The market share trends report shows the growth (or decline) of the new entrant retailers. You may want to try zooming in to see what the smaller retailers are up to. The ability to scale retail operations rapidly is often dependent on investment in systems and processes, as well as the marketing effort. For information on how these entrants are helping create a more competitive market structure see our annual changes in market structure dashboard.

Region: New Zealand Retail entity: Parent company Market segment: All ICPs

Aggregate growth of small and medium retailers

The number of connections (installations control points) in the retail market continues to increase. This means there are more consumers for retailers to compete to supply. Over time the share of connections supplied by small and medium retailers in aggregate is growing steadily. Take a look at the share in the North Island - small and medium retailers combined now serve more than Meridian or Trustpower.

Region: New Zealand Retail entity: Parent company Market segment: All ICPs

New report released - consumer choice, 2017

Consumer choice of electricity supplier continues to grow across the country as new retailers enter and retail brands are established to reach niche consumers. At the end of 2017, there were 48 retail brands supplying consumers in New Zealand. Auckland consumers have the greatest choice with 35 brands available. Hover over your network region to see how many brands are supplying consumers there.

Date: 31 Dec 2017 Region type: Network reporting region Market segment: All ICPs Retail entity: Brands Show: Total

New report released - consumer choice, 2013

Contrast the previous report view with this one from 2013 when there were only 25 retail brands supplying consumers with a maximum choice in any region of 20. More information on how these measures have changed through time is available in the increasing consumer choice dashboard.

Date: 31 Dec 2013 Region type: Network reporting region Market segment: All ICPs Retail entity: Brands Show: Total

New report released - consumer choice league table

This report provides an alternate view of consumer choice focusing on the changes that occur within a year. The West Coast region recorded a 70 per cent increase in maximum available choice, up from just 10 in 2016 to 17 in 2017. Hover over the bars and markers for more information on consumer choice and how this is changing.

Region type: Regional council Market segment: All ICPs Retail entity: Brands Show: Maximum choice
Trending reports
Market share snapshot

Category  - Retail 794 this week

Market share trends

Category  - Retail 620 this week

Switching breakdown

Category  - Retail 602 this week

Wholesale energy prices

Category  - Wholesale 553 this week

Switching summary

Category  - Retail 388 this week

Trending reports
Market share snapshot

Category  - Retail 794 this week

Market share trends

Category  - Retail 620 this week

Switching breakdown

Category  - Retail 602 this week

Wholesale energy prices

Category  - Wholesale 553 this week

Switching summary

Category  - Retail 388 this week