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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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Wholesale prices, 2017, 2016, 2012

Wholesale energy prices were much higher in winter in 2017 than in 2016. This was due to low inflows from March to July into South Island catchments and record low inflows into the Waiau catchment that feeds Meridian's Manapouri power station. By comparison, 2012 also had low South Island inflows, although this situation occurred earlier in the year and resulted in wholesale prices reaching a similar level. More information is in the historical hydro risk curves.

Time scale: Day Show: Demand-weighted average
Trending reports
Market share snapshot

Category  - Retail 681 this week

Wholesale energy prices

Category  - Wholesale 485 this week

Market share trends

Category  - Retail 415 this week

Switching breakdown

Category  - Retail 412 this week

Installed distributed generation trends

Category  - Retail 351 this week

Trending reports
Market share snapshot

Category  - Retail 681 this week

Wholesale energy prices

Category  - Wholesale 485 this week

Market share trends

Category  - Retail 415 this week

Switching breakdown

Category  - Retail 412 this week

Installed distributed generation trends

Category  - Retail 351 this week

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