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.
Wednesday 3 August 2022
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 9854MW, and this is from the current total of 76 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 – 3929MW (1.10PM)
Daily Maximum – 7252MW (7.25AM)
Average Wind Generation – 5891MW
Total Generated Power – 141.38GWH
Percentage Supplied By Wind Power At The Low Point For The Day – 15.00%
Percentage Supplied By Wind Power At Peak Power For The Day – 6458MW of 27405MW – 6.45PM – 23.6% (Mid afternoon Peak with maximum rooftop solar added was 26360MW at 12.30PM)
Average Percentage Of Overall Total Power Generation – %
Daily Operational Capacity Factor – 59.78%
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.
- 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)
- For total power in GWH, multiply the average daily power by 24, and then divide by 1000.
- 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
I mentioned yesterday that wind might be in for a very high day of generation for this day, based upon the closeness of the Isobars with a very deep Low pressure weather system moving across that area where there are the greatest concentration of wind plants in the South of the Continent. That proved somewhat the case, as this day had the highest point in time power generation that wind generation has achieved. That was a high of 7252MW. However, as somewhat expected as this was as Nameplate has increased markedly, the highest maximum is still lower with respect to that Nameplate (Capacity Factor) and that was achieved back in May when the Nameplate was almost 1300MW lower. So, for that record to be broken, then the new maximum would need to be 7354MW, so there is still a hundred MegaWatts to go yet, and having said that, it’s probably not too far away anyway. The total generated power of 141.38GWH was lower than largest day long power generation set four days ago, and the daily average for this day was 5891MW, and that gave wind generation a daily operational Capacity Factor of 59.78%, just under double the year round average, so twenty nine percent higher than that year round average. Wind went low and then was back in a rising phase at the usual time of the evening Peak of maximum power consumption, and at that time, wind was delivering 23.6% of all the generated power from every source. With wind so high, any drop away from the record high means that there was a substantial difference between the high for the day and the low, and for this day, that gap was a very large 3323MW. With that huge Low pressure weather system moving so slowly, and the Isobars still quite tightly bunched, then tomorrow also look likely to be another day of high power generation.
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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