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.
Long-dated forward price curves dropped 24% at both Benmore and Otahuhu on Tiwai aluminum smelter exit announcements. 263 long-dated contracts were traded on 9 July, mostly maturing in 2021 and 2022. Tiwai load accounts for approximately 13 percent of national demand. NZAS has terminated its power supply contract which will end in August 2021.
The report instance below highlights the difference between Otahuhu and Benmore prices over the latest 24 weeks for September and June quarterly baseload futures contracts. Market expectations of the Otahuhu price premium over Benmore for winter quarters have increased, reaching a $35.50 premium for June 2023 quarter on 16 July ($89/MWh at Otahuhu and $53.50/MWh at Benmore). This situation follows a similar period earlier in the year where the market has been awaiting clarity on the outcome of the NZAS review. In this earlier situation, the separation was caused largely by Benmore price dropping relative to the Otahuhu price (e.g. $90/MWh to $67/MWh for the June 2023 quarter). However, the actual closure announcement has resulted in a drop in prices at both Otahuhu and Benmore. Click the heading and change the location to see settlement prices for each location.
New Zealand entered 'level 4 lockdown' in response to Covid-19's arrival and spread on 26 March, reducing alert levels to Level 1 on 9 June. The report instance below highlights how the business demand for electricity (excluding NZAS) changed through the alert levels, dropping 30 percent in April and recovering quickly as business activity returned. Drill into the report to investigate how this differed amongst regions or by business connection types (network or grid). More insights are available in the market demand overview   dashboard or NZAS demand overview   public dashboard.
On 31 March 2020, the Authority amended the Code to prohibit retailers from making contact with customers that had switched away and attempting to entice them back. The 31 March Code change prohibits this activity for a period of 180 days. This report shows trends in potential win-backs through time, based on what the trader responsible for the ICP enters into the registry. Customers are perfectly free to initiate contact with their previous retailer and may well choose to switch back. Hence, this report only provides an indicator of potential win-back behaviour. Users can investigate the impact of different win-back mechanisms and highlight how significant the activity is to each trader or parent company, relative to either switches away, or to ICPs won. For more insights, explore the report, or view a public dashboard   with a selection of report instances.
The report instance shows a daily summary of wholesale prices for 2020. An impact of the 25 March lockdown and reduced demand is apparent on prices at the end of Q1.
Transpower is undertaking major work on the HVDC during January - April 2020. This work will result in reduced capacity and some bipole outages. This chart shows the flow (MW) over the last four weeks. More information on the outages is available on Transpower's website.