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.
Tuesday 25 January 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 8587MW, and this is from the current total of 69 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 – 288MW (11.10AM)
Daily Maximum – 2346MW (9.10PM)
Average Wind Generation – 1324MW
Total Generated Power – 31.77GWH
Percentage Supplied By Wind Power At The Low Point For The Day – 0.94%
Percentage Supplied By Wind Power At Peak Power For The Day – 2261MW of 28720MW – 7.10PM – 7.87% (Mid afternoon Peak with rooftop solar added was 32890MW at 2.50PM)
Average Percentage Of Overall Total Power Generation – %
Daily Operational Capacity Factor – 15.42%
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
Wind generation was again well down on what it was on the day before this, and that daily average of 1324MW gave wind generation a daily operational Capacity Factor of 15.42%, and that was fifteen percent lower than the year round average, so the whole fleet of wind Nameplate in Australia of 8587MW was operating at less than HALF of the already low year round average. That low point for the day of 288MW meant that at that time, wind was operating at just 3.5% of it’s total Nameplate, and that’s just plain pitiful really. Note that this is barely a week since it was operating at its highest level for Months, proving yet again, that wind power generation is so variable, that it just cannot be relied on to deliver the required power on ANY level. That low point was just 14 hours from the earlier high the evening before this,meaning that in those 14 hours wind generation lost 2450 MW of its power generation, the equivalent of NINE of those large scale coal fired Units, when, if even one of those falls off line, it indicates the unreliability of coal fired power, and here we have the loss of what is NINE of those coal fired Units. On a day when wind generation was so low, this accentuates the difference between the low for the day and the high, and here on this day, that gap came in at 2058MW, and that indicates a swing of 88% in wind generation from that low to the high. For ten consecutive hours, wind generation was lower than 1000MW, so under 12% for that extended time. In South Australia, there is a total Nameplate of 2142MW, and at the low point for that State, every one of those 22 wind plants in that State were generating a total of just ….. 6MW, SIX MegaWatts, and that is at a Capacity Factor of 0.35%, just one third of one percent, so, in effect with more than one thousand individual wind plants, only THREE of them actually had their blaqdes turning around and generating power. Okay, you wind supporters, you tell me how you run a Country on that.
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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