Australian Daily Wind Power Generation Data – Sunday 07 February 2021 – Plus Weekly Update

Posted on Mon 02/08/2021 by

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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.

Sunday 07 February 2021

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 8132MW, and this is from the current total of 67 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 – 1447MW (1.25PM)

Daily Maximum – 3274MW (11.55PM)

Average Wind Generation – 2380MW

Total Generated Power – 57.12GWH

Percentage Supplied By Wind Power At The Low Point For The Day – 5.6%

Percentage Supplied By Wind Power At Peak Power For The Day – 1543MW of 26250MW – 2.45PM – 5.88%

Average Percentage Of Overall Total Power Generation – 10.4%

Daily Operational Capacity Factor – 29.27%

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.

Notes

  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.

Weekly UPDATE

Generated wind power total as a Percentage of overall total generated power from every source for this last week – 10.9%

Generated wind power total as a Percentage of overall total generated power from every source for the last year (52 weeks) – 10.0%

Capacity Factor for wind power generation for the last week (7 days) – 31.67%

Capacity Factor for wind power generation for the last year (52 weeks) – 29.61%

Capacity Factor for wind power generation for the longer term (123 weeks) – 29.85%

Comments For This Day

On this day, wind generation was a little higher than it was on the day before, and that average for this day of 2380MW gave wind generation a daily operational Capacity Factor of 29.3% and that’s the same as the year round average. Wind was again going in the opposite direction to overall power consumption, wind falling as consumption rose, and again note the difference between the low and the high, and here that was again 1800MW+. You can also see that intermittence was pretty bad as well, and here on this day this lasted six and a half hours from 10AM onwards, up and down a number of times, around 20 in fact, and no sooner had it risen than it crashed again, as you can easily see. Each spike is between 200 and 400MW indicating that hundreds of individual wind towers have just shut down. Wind operators think they can get away with this because no one ever sees it, and in fact no one even knows about it, as each time it happens, it’s covered by other power sources making up for all that lost power. If news like this were to become public knowledge, then some pretty stern questions would be asked about wind power generation, and the answers may not be all that palatable.

As you can see from the weekly update, the ups and downs throughout the week meant that wind generation only had a weekly operational Capacity Factor of 31.7%, barely two percent higher than the year round average, and both of those indicators are still stuck below 30%.

*****

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.

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