Member dashboards

We have seen a decrease in energy constrained-on amount ($) in April and May 2019 but it seems pick up again in June 2019 to present. This Dashboard gives you a glance of the top 10 daily energy constrained-on amount allocated to a single dispatch station/block and the main cause of energy constrained-on in each case.

Installed Capacity and actual Generation

This dashboard shows the daily average and maximum wholesale price maps for the last seven days. It provides a quick comparison between days while highlighting any price separation between regions.

The implied spot price for the remainder of the contract period is derived from the bid-ask spread (blue area) and trade (the red line) within the current contract periods (quarterly and monthly) at Otahuhu and Benmore.

Monthly Switch Stats

Updates of the 2020 ERCs. This follows on from the 2019 updates dashboard. Check the report notes for the black markers (more information tab after drilling into a report) to see what was driving the change to the curves in each update. Hover over the points in the charts to see how much the curves change with each update. New report instances will be added as updates occur.

Currently, generation companies receive constrained-on payments in addition to the spot price while they ramp-down generation output to meet new dispatch instructions. The presence of a high-priced offer in a trading period directly following a low-priced offer increases the likelihood of, and the amount received, via constrained-on payments. The constrained-on amounts shown in the headings are estimates. The Authority is currently consulting on removing these ramp-down constrained-on payments.

This dashboard highlights both the monthly trade volumes and open interest in quarterly base load futures products (monthly duration for open interest too). Report instances are grouped by maturity calendar year back to 2013 so it's easy to see the evolution of the market.

Updates of the 2019 ERCs. Note that from 1 Aug 2019 contingent storage was included in the methodology. Check the report notes (more information tab after drilling into a report) to see what was driving the change to the curves in each update. Hover over the points in the charts to see how much the curves change with each update.

Generation trends for the major plant over the last two years. Only selected plant within hydro schemes is included. Wind generation is shown on a weekly basis to better show the energy contribution rather than daily volatility.

Whirinaki energy offers and cleared generation over the last seven days. The offer stacks present total energy offers, they have not be adjusted to account for cleared reserve. We hope to make this adjustment to the report soon.

Stratford energy offers and cleared generation over the last seven days. The offer stacks present total energy offers, they have not be adjusted to account for cleared reserve. We hope to make this adjustment to the report soon.

Huntly energy offers and cleared generation over the last seven days. The offer stacks present total energy offers, they have not be adjusted to account for cleared reserve. We hope to make this adjustment to the report soon.

McKee energy offers and cleared generation over the last seven days. The offer stacks present total energy offers, they have not be adjusted to account for cleared reserve. We hope to make this adjustment to the report soon.