Australian Daily Wind Power Generation Data – Sunday 27th October 2019 – Plus Weekly Update

Posted on Mon 10/28/2019 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 27th 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 – 981MW (7.10AM)

Daily Maximum – 2630MW (12.05AM)

Average Wind Generation – 1661MW

Total Generated Power – 39.86GWH

Percentage Supplied By Wind Power At The Low Point For The Day – 4.91%

Percentage Supplied By Wind Power At Peak Power For The Day – 7.15PM – 6.81%

Average Percentage Of Overall Total Power Generation – 8.0%

Daily Operational Capacity Factor – 24.78%

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 – 9.0%

Generated wind power total as a Percentage of overall total generated power from every source for the last year (52 weeks) – 8.0%

Capacity Factor for wind power generation for the last week (7 days) – 29.68%

Capacity Factor for wind power generation for the last year (52 weeks) – 29.14%

Capacity Factor for wind power generation for the longer term (56 Weeks) – 29.35%

Comments For This Day

There was a long continuation of what started the day before, when, at around 5PM, wind power was generating almost 4000MW, and then it began to fall, continuing into this day, when at 7AM, wind power dropped below 1000MW, so it lost 3000MW in 14 hours, more than three quarters of its power. The average for this day was 1661MW, and that gave wind power a daily operational Capacity Factor (CF) of 24.78%.

Of note, and typical for a weekend at this time of year, that peak moved back to around 7PM in the evening. During the week, those daily peaks have started to move more towards the early and mid afternoons, whilst on weekends power consumption at that time is a lot lower.

When it comes to how wind power performed across the whole seven day wee, we had two days when wind power had huge power generation, one day a little above average, one day a little below average and three days well below average, in fact three really poor days. However, when averaged across the week, that operational CF for the week came in at 29.68%, almost right on that year round average. Also, as a result from that those rolling CF for the full 52 week year and also in the longer term are also both around that 30% mark, emphasising the fact that the 30% figure is indeed quite an accurate one.

*****

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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