All reports

This report publishes the historical electricity risk curves (ERCs) against controlled storage as presented by the system operator undertaking their security of supply forecasting function. Changes or discontinuities with the approach over time are indicated with a vertical grey line.

This report shows wholesale energy prices for the electricity spot market. Parameters allow selection of weighting type, time scale, and regional averages.

This report splits offers bid into the spot market for energy in to price bands and plots the cleared quantity against these. Users are able to adjust the bands in the offer stacks and drill down to individual nodes in the wholesale market.

This report shows the market share of connections (ICPs) by retail entities in various regions and how this has changed through time.

This report shows the market share of connections (ICPs) by retail entities in various regions at a point in time. Brand information is only available on 31 December each year from 2011.

This report shows the number of connections (ICPs), the uptake rate of ICPs, or the installed capacity by fuel type and connection capacity for installed distributed generation. All numbers are derived from what has been entered in the registry, especially the Fuel Type and Generation Capacity fields populated by distributors.

This report shows electricity generation injected into the grid. Users can drill down from a national level to individual nodes and investigate trends through time.

This report shows the electricity demand from the grid. Users can drill down from a national level to individual nodes and investigate trends through time.

This report shows prices for reserves (FIR and SIR) in the electricity spot market through time.

This report shows the number and rate that electricity connections (ICPs) have changed electricity suppliers through time and compares this regionally.

This report shows switching and distinct switching for periods of one to five years by region, market segment, and switch type. The report ranks regions and highlights changes in annual measures.

This report shows the open interest in exchange traded products for New Zealand electricity forward market. Users can express this in GWh, contracts or dollars.

This report shows differences average regional wholesale energy prices for a day, month, quarter or year on a map. Alternatively, the report can show the difference in regional prices relative to a selected difference node.

This report shows the flow (MW) and the energy transferred (MWh) across the HVDC link that connects Benmore in the South Island to Haywards in the North Island. For longer time scales, the net transfer or peak flow can be shown.

This report shows a summary of electricity connection (ICPs) switching electricity suppliers across time including wins and losses or the net result of switching activity. A monthly series is available in the data report.

This report provides insights into consumer agent requests for consumption data from retailers on behalf of consumers. Users can view a range of measures including requests made from agents, responses from retailers, the average time for responses, or responses that take longer than 5 business days to action.

This report shows the market share of connections (ICPs) by retail entities in various regions and how this has changed through time relative to the selected start date.

This report is a companion to the residential consumption trends report. The report presents the remainder of reconciled demand on a monthly basis and allows the user to differentiate business demand by connection type, either network connected or directly connected to the grid. Business demand can be shown as a proportion of regional or national demand with options to include or exclude the NZ Aluminium Smelter (NZAS).

This report shows the change in price for exchange traded instruments through time.

This report shows two measures of market concentration based on ICPs in the retail market, the Herfindahl-Hirschman Index (HHI) and concentration ratios (CRX). Parameters allow selection of individual market segments and provide the ability to show the change in any metric over the previous 12 months.

The Herfindahl-Hirschman Index (HHI) provides one measure of market concentration. This report shows the trend through time for the retail market based on the share of connections (ICPs). Parameters allow comparisons to be made amongst regions and market segments.

This report shows are range of forward price curves for exchange traded instruments in the forward market. These price curves are compared against a simple average of the daily spot price and a 7-day moving average.

This report illustrates the change in the share of total connections (ICPs) held by the largest retailer(s) in each region over time. Users can select from one to four largest retailers and explore the market concentration regionally and by market segments.

The trade volume report presents the number of New Zealand electricity futures and options contracts traded each business day on the ASX exchange. Users are able drill down into the volume data by instrument, location, commodity, duration and maturity, or expiration date.

This report shows metering types and categories broken down by retail entities or metering equipment providers (MEPs). For example, it can show the number of smart meters installed by each retailer.

This report shows the national or regional trends in residential electricity consumption for a set of statistical distribution summary measures including the average and total. Annual, monthly or seasonal trends are available by adjusting the timescale parameter.

This report shows the estimated average and total residential savings available each year if all residential consumers had switched to the cheapest available plan to them (excluding spot priced plans). The report highlights rankings and changes amongst regions.

This report shows the growth in retailers by connections they serve. Retail brand information is available for calendar years only.

This report shows retail market share by connections (ICPs) broken down by retail entity and region at a point in time and changes through time.

This report summarises the distribution of historical wholesale energy prices within a day, month, quarter or year. Alternatively, the report can summarise the difference in prices for the selected regions (or nodes) relative to the prices at a selected difference node. The report provides powerful options for comparing prices both between regions and across time.

This report calculates historical location factors for a region or node relative to a selected basis node. A location factor is simply the ratio energy prices at two different locations. They are commonly used to adjust prices from one node to what it might be at another node or in another region.

This report shows trends in the proportion of a company's generation or demand that is exposed to the physical wholesale market. The report ignores any derivative or hedge positions held by the parent companies. A measure above zero represents a long position on physical generation while a measure below zero represents a short position on physical generation.

ASX operates a voluntary market making regime to encourage liquidity in the trading of New Zealand electricity futures. Market makers sign a market maker incentive agreement with ASX and commit to undertaking a range of specified actions. This report presents the results of the market maker performance tests undertaken by ASX following the close of each trading session.

This report shows the number of connections (ICPs) switching of electricity suppliers (wins and losses) broken down by retail entity and regions across time.

This trend report provides a simple indicator of potential saves and win-back activity. Retailers are banned for 180 days from contacting customers who have decided to switch to a new retailer to entice them back or to stay. Results can highlight traders or parent companies that stand out from their peers and require further investigation to understand the underlying reasons.

This report splits offers bid into the spot market for reserves (FIR and SIR) in to price bands and plots the cleared quantity against these. Users are able to adjust the bands in the offer stacks and investigate the reserves offered in each island.

This report shows the regional growth of electricity connections or market size over time. Users can investigate the growth in connections that has occurred in various regions and market segments.

This report shows planned or scheduled electricity generation outages by generation type, participant, and island. Analysis of the generation capacity available to meet demand will be supported by the use of this report.

This report shows historical location factors for a region relative to a selected basis node. A location factor is simply the ratio energy prices at two different locations. They provide useful information when seeking to manage locational price risk and can be used to adjust prices from one node to what it might be at another node or in another region.

This summary report provides a simple indicator of potential saves and win-back activity. Retailers are banned for 180 days from contacting customers who have decided to switch to a new retailer to entice them back or to stay. Results can highlight traders or parent companies that stand out from their peers and may require further investigation to understand the underlying reasons.

This report explores the sensitivity of nodal prices to changes in load, or demand. Load is both incrementally increased and decreased in a series of experiments based on the price response schedule for each real-time trading period and the subsequent seven future trading periods. For each experiment, the resulting nodal prices are reported.

This report shows a snapshot of the number (or proportion) of electricity connections at a point in time in different regions. Users are able to investigate further by selecting different regional breakdowns and market segments.

A simple measure of vertical integration within firms operating in the wholesale electricity market has been constructed using reconciled sales and purchases and can be tracked through time.

This report shows the entry and exit of retail entities through time. Monitoring market entry and exit, or assessing barriers to entry and exit, is an important measure of competitive markets. Information is presented for retail parent companies, retail brands, and traders responsible for ICPs. The report may be extended to include other participants in the future.

This report shows wholesale dispatch energy prices for the electricity spot market.

This report shows the average and total residential electricity consumption by region and year. The report ranks regions and highlights changes in annual measures.

This report provides an alternative presentation of the stress testing summary report. Rather than show the distribution of all respondents' scores, it shows the number or percentage of respondents falling into groups with similar scores.

This data report enables certain data to be downloaded for a single node or point of connection. Simply select a node and a date range, and the data will be available for download as a CSV file. At present the only data available is wholesale energy prices.

The results for three measures of financial stress faced by firms participating in the wholesale market under two simulated stress scenarios are summarised in this report.

This report shows the price changes in exchange traded instruments on different trade dates in a single report.

This report shows wholesale dispatch reserve prices for the electricity spot market.

Unaccounted for electricity by network. Based on information, (GR-280), available from the reconciliation manager, at https://www.electricityreconciliation.co.nz/public_files

This report reflects information collected under the Retailer Financial Stress notice published under 2.16 of the Electricity Industry Participation Code 2010 (Code).

This report presents the impact on the cash flow of firms participating in the wholesale market under two simulated stress scenarios.

This report presents trading period demand values (MW) or demand weighted prices ($/MWh) for the selected date range, ranked in descending order. Values are sourced from our reconciled volumes dataset (GR010), which is updated monthly, and WITS final pricing.

TBD

This report shows switching activity as a proportion of the total ICPs in each region. It highlights regions with a lot of activity and contrasts them against others.

This report lists network supply points (NSPs) that are used in the reconciliation process and their details. Coordinates are provided along with mappings to various region types.

This report shows indexed residential price changes against the estimated indexed costs that retailers must meet to operate.

This report shows the estimated average and total residential savings available each year if all residential consumers had switched to the cheapest available plan to them (excluding spot priced plans). The report highlights the changes amongst regions.

This report shows the estimated average and total residential savings available each year if all residential consumers had switched to the cheapest available plan to them (excluding spot priced plans). The report highlights the changes amongst regions.

This report shows how generally available residential tariff types have changed over time and draws attention to the increased availability of tariffs, or pricing plans, featuring an element of demand response. The report does not show market share and nor does it show the proportion of consumers on the different types of plans. It shows the proportion of available plans grouped into one of four plan types.

ASX operates a voluntary market making regime to encourage liquidity in the trading of New Zealand electricity futures. Market makers sign a market maker incentive agreement with ASX and commit to undertaking a range of specified actions. This report presents the contracts that should be offered for a date, and any special conditions that they may be subjected to.