Australian Daily Wind Power Generation Data – Friday 18th October 2019

Posted on Sat 10/19/2019 by


By Anton Lang ~

This Post details the daily wind power generation data for the AEMO coverage area in Australia. For the background information, refer to the Introductory Post at this link.

Each image is shown here at a smaller size to fit on the page alongside the data for that day. If you click on each image, it will open on a new page and at a larger size so you can better see the detail.

Note also that on some days, there will be a scale change for the main wind power image, and that even though images may look similar in shape for the power generation black line on the graph when compared to other days, that scale (the total power shown on the left hand vertical axis) has been changed to show the graph at a larger size to better fit the image for that graph.

Friday 18th October 2019

Total Wind Power Generation

This image shows the total power generated across the whole day by every wind plant in this vast AEMO coverage area for Australia.

The total Nameplate for all these wind plants changes as each new wind plant comes on line delivering power to the grid. That current Nameplate is 6702MW, and this is from the current total of 55 wind plants.

Note that the shape of this wind power load curve does not follow the shape of the main load curve for total power generation, and that is seen in the image below, the solid black line across the top of the image for that graph. Wind power generates its power only when the wind is blowing, hence it does not follow the actual power generation Load Curve, which is also the the exact same shaped curve as for actual power consumption.

For this data, I have added the times for the daily minimum, and the daily maximum, to show how they do not correlate with the actual times of minimum power consumption (around 4AM each day) and maximum power consumption, the evening Peak. (at around 6.40PM in Winter and earlier during the Summer Months.)

Daily Minimum – 1866MW (12.05AM)

Daily Maximum – 3651MW (4.25PM)

Average Wind Generation – 2759MW

Total Generated Power – 66.22GWH

Percentage Supplied By Wind Power At The Low Point For The Day – 9.10%

Percentage Supplied By Wind Power At Peak Power For The Day – 12.15PM – 13.35% (at the evening peak at 6.50PM – 13.05%)

Average Percentage Of Overall Total Power Generation – 12.6%

Daily Operational Capacity Factor – 41.16%

Wind Power Generation Versus Total Power Generation

This image shows the total power generated from all the wind plants in this AEMO coverage area, and compares it to the overall total generated power from every source of power generation, which is the black line at the top of the graph. Wind power is the green coloured area, along the bottom of this graph.

While the green colour in this image looks to be a different shape to the graph above, keep in mind here that the scale is completely different, and that green coloured Wind total is the same as for the image shown above, only with the scale changed so it can fit onto the graph.


  1. Finding Wind Power Average – On the graph, there are 25 hourly time points, starting with midnight and finishing with midnight. I have added the total at each of those hourly time points together, and divided the resultant total by 25 to give an average in MegaWatts. (MW)
  2. For total power in GWH, multiply the average daily power by 24, and then divide by 1000.
  3. For the Capacity Factor, that is calculated by dividing the average wind generation by the current Nameplate and then multiplying that by 100 to give a percentage

Comments For This Day

Again, this was another of those good days for wind power, and as you can see from the graph, it rose steadily across the day, and then fell a little in the evening. Even so, the difference between the low for the day and the high was still 1800MW, so even on these good days, there is a fairly large (percentage wise) variation. The peak for the day is now looking to be more and more likely to be in the middle of the day, typical for the warmer Months and Summer in particular, and here on this day, we have that peak at 12.15 PM, while the evening peak is at the usual time of (around) that 6.50PM point in time, and that difference in peaks for this day shows that it is also increasing, and is now up to 1400MW.

These last two days have been really good days for wind power, both days with that operational Capacity Factor up and over 40%, ten percent and more higher than the year round average of 30%, and even so, note that wind power still only delivers 12% of all the generated power.


Anton Lang uses the screen name of TonyfromOz, and he writes at this site, PA Pundits International on topics related to electrical power generation, from all sources, concentrating mainly on Renewable Power, and how the two most favoured methods of renewable power generation, Wind Power and all versions of Solar Power, fail comprehensively to deliver levels of power required to replace traditional power generation. His Bio is at this link.