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 19 June 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 – 2381MW (12.10AM)
Daily Maximum – 5505MW (11.40PM)
Average Wind Generation – 3934MW
Total Generated Power – 94.41GWH
Percentage Supplied By Wind Power At The Low Point For The Day – 10.7%
Percentage Supplied By Wind Power At Peak Power For The Day – 4770MW of 28155MW – 5.50PM – 16.94% (Mid afternoon Peak with maximum rooftop solar added was 24615MW at 12.00PM)
Average Percentage Of Overall Total Power Generation – %
Daily Operational Capacity Factor – 39.92%
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.
Generated wind power total as a Percentage of overall total generated power from every source for this last week – 10.6%
Generated wind power total as a Percentage of overall total generated power from every source for the last year (52 weeks) – 11.9%
Capacity Factor for wind power generation for the last week (7 days) – 27.83%
Capacity Factor for wind power generation for the last year (52 weeks) – 30.91%
Capacity Factor for wind power generation for the longer term (194 weeks) – 30.10%
Nameplate change from beginning of data collection – (then) 5301MW – (now) 9854MW – (Change) +4553MW (an increase of 86%)
Comments For This Day
Wind generation increased across the day (well, most of it anyway) on this day, and the average power generation of 3934MW gave wind generation a daily operational Capacity Factor of 39.9%, and that was nine percent higher than the year round average. Wind generation was rising at the usual time of the evening Peak of maximum power consumption, and at that time, wind was delivering just under 17% of all the generated power from every source. as It did rise across the day, that meant that there was again a substantial difference between the low for the day and the high, and for this day, that gap was 3124MW.
When it came to the weekly Update, this week saw the addition of seven new wind plants to the data collection, increasing the Nameplate to 9854MW. There were a couple of high days and a couple of low days, one of those low days the second lowest wind has ever recorded for Capacity Factor, (CF) just 7%, a daily average for hourly power generation of 709MW. For the whole week, the operational Capacity Factor for the week came in at 27.8%, and that was three percent lower than the year round average. That meant that both long term CF stayed relatively the same and you can see that after the huge week of the week before this one, that second long term CF figure, for the most recent 52 weeks is now closing in on 31%.
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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