Australian Daily Wind Power Generation Data – Saturday 4th April 2020

Posted on Sun 04/05/2020 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.

Saturday 4th April 2020

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 6960MW, and this is from the current total of 57 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 – 2839MW (1.25AM)

Daily Maximum – 4346MW (5.50PM)

Average Wind Generation – 3594MW

Total Generated Power – 86.25GWH

Percentage Supplied By Wind Power At The Low Point For The Day – 15.2%

Percentage Supplied By Wind Power At Peak Power For The Day – 4015MW of 24100MW – 6.35PM – 16.66%

Average Percentage Of Overall Total Power Generation – 17.1%

Daily Operational Capacity Factor – 51.64%

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

Quick, where’s the wind generation supporters jumping all over this.

Yesterday, Saturday 4th April 2020, wind generation delivered just under 87GWH of power to the grids here in Australia. That’s at an average of 3594MW per hour. Wind delivered 17% of all generated power. Keep in mind that this is on a Saturday, the day of second lowest power consumption for the week, with Sunday the lowest. Power consumption overall on this Saturday was around 6% to 7% lower than a typical working day during the previous week, during the benign Months of the year when power consumption is lower than during those big power consuming times during Summer and Winter.

I have been taking detailed records for the last four plus years now, and there has only been ONE DAY in those last four years when wind generation for the day has been higher than this, one day.

This gave wind power a daily operational Capacity Factor of 51.6%.

A little over half its total Nameplate and that’s the absolute BEST it can be. 17% of generated power on a low consumption day, and this is the absolute BEST it can be.

What an enormous waste of money it has all been.

Oh, and even on this BEST day, there was a period when wind generation fell by more than 1000MW in twenty minutes. I can guarantee you that if coal fired power did something like that, they would be howling so loudly about how unreliable coal fired power is. Incidentally, that sudden drop is becoming a little more prevalent over the last few days, and it dropped suddenly by large amounts a few times during this day, and another drop of 1000MW in 20 minutes the day before, so I don’t know what’s going on with that.

Wind, the second best day ever, and it still only manages 50%.


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.