Point in Time View

This is illustrated here:

Each window operates with its own point in timeAll widgets within that window will obey the point-in-time selection for the window.

There are two general options available for the time setting of a particular window:


Option 1 = “Real Time” mode

By default, a window will be in “real time” mode.

In this mode, all data displayed across all widgets in that window will update as and when new data is available.  Note that different data sets (including from different data providers) will arrive on different cadences (and are of different time steps) – hence the application will show data as close to real time as possible.

Note some specific points of interest:

AEMO dispatch data This is the most important data set for many of our clients.


Dispatch data (including dispatch prices) is published every 5 minutes, towards the start of each dispatch interval and indicating (in terms of targets) the expected output of a certain DUID (or consumption if demand) at the end of the dispatch interval.


AEMO trading data Until 1st July 2021 (when the NEM moves to 5-minute settlement), trading data is published every 30 minutes and relates to a 30-minute period.


Trading data (e.g. prices) will generally only be published about 26 minutes into a trading period.


AEMO P5 predispatch The P5 predispatch run is updated every 5 minutes, and effectively spans 11 dispatch intervals into the future (plus the current one).


AEMO P30 predispatch The P30 predispatch run is updated every 30 minutes, and extends out till 04:00 tomorrow or (from bidding “gate closure” at 12:30 each day) till 04:00 the day after tomorrow.


BOM weather observations For capital cities and other major locations, the data measurements are generally delivered every 10 minutes.


Other locations might have data on slower cadence.


ASX Energy futures data The software provides access to end of day[1] contract price, volume and open interest.


LGC registration data, from the Clean Energy Regulator Access is provided to LGC registration data, which is one data point per year per power station registered at the Clean Energy Regulator.




From mid-2016 (noted in release notes for v7.1) we upgraded the time clock within ez2view to provide clearer visibility of where your display is within a dispatch interval:

The time clock (located in the top-right of each window) uses your PC clock time and regional settings to determine which Dispatch Interval you are currently within:

The progress indicator will increment through the dispatch interval (and slightly into the next one) to help you understand how soon till you should expect new data.

Should your data updates fail for whatever reason (e.g. data supply to your InfoServer MMS via your MarketNet link to AEMO is disrupted) the time clock will revert to an alert (red) colour, to highlight this to you:

More information about the Window Clock Controller within ez2view is provided in this online help file.


Option 2 = “Time Travel” mode

Time travel has been a core part of the ez2view application since as far back as 2011 – and was a based on the principle of “Playback” established with NEMwatch around 2002.

Each window can be Time-Travelled to a separate point in the past[2].  To Time-Travel, simply click on the clock in the top-right of the relevant window and adjust the display point:

When time-travelled, it is important that the window will show the market as it appeared at that point in time (including the forecasts that existed at that time – i.e. P5 predispatch, P30 predispatch, ST PASA and MT PASA).

If there were price revisions subsequently released, these will be shown in the Time-Travelled window.

In order that someone looking over your shoulder does not mistakenly see data on the display and assume it is live (and panic, if you are reviewing a price spike), the Title Bar of each Window is coloured distinctively if not in Real Time.


Because each window can have its own time context, and you are able to have many windows open (notwithstanding that resource use increases the more widgets you have running) an automated colour-generation logic applies to ensure that Time-Travelled windows at different points in time have different colours, as above.



[1]  The software does not currently access intra-day data from ASX, but this is a possibility.  If this is of interest to us, please let us know (call +61 7 3368 4064).

[2]   Note that it is not currently possible to Time Travel into the future (e.g. in predispatch) to show the expected market conditions at that time.  However this has been logged as a possible future upgrade and is under consideration.  If you would like to contribute to our consideration of this upgrade, please let us know.