Electrical Power Data In Pictures – Supply And Consumption And Renewables – Part 6

Posted on Tue 09/06/2022 by

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By Anton Lang ~

Again be aware that this data is not from any time far into the past, as this data is current to just six days ago.

Every image you see in this Post is sized at a smaller size to best fit the page. If you click on any of the images, each one will open on a new page, and at a much larger size so you see the detail better.

The last image I showed you from the earlier Post was this one, showing the total Power generation/consumption, that black line across the top of the graph,and the four renewable sources of power generation, the four coloured and labelled sources at the bottom of the graph..

Remember I said back in Part One that this image of this day is indicative of the averages for all these five indicators, the Total Power, and those four Renewable sources of power generation. While those five indicators were exactly calculated from the year long totals for all five, it was impossible to find one day in the year where all five were that exact number, so here, I have had to settle for one day when all indicators were as close as they could be to those exact averages.

The exact numbers were as follows:

Total Generated Power – 568GWH

Solar (Rooftop) – 48GWh

Solar (Utility) – 28GWh

Wind – 69GWh

Hydro – 45GWh

The numbers for this selected day, 7 September 2021 were as follows

Total Generated Power – 562GWH (1.1% lower than the average)

Solar (Rooftop) – 52GWh (8.3% higher than the average)

Solar (Utility) – 30GWh (7.1% higher than the average)

Wind – 64GWh (7.3% lower than the average)

Hydro – 48GWh (6.6% higher than the average)

Now, They might seem well and truly out of whack, but they were in fact, the closest ones I could find. Three of those Renewable Indicators in fact were higher than the exact average and just Wind was lower, and the overall total of those four renewables when added together was 194GWH, and that was 2.1% higher than the exact averages total. So, here, in actual fact we are making those four Renewables sources ‘look’ slightly better than what they actually were for the year, so I’m not in any trying to make them ‘look bad’, as in fact I am making them look a little better than they really are.

All of those renewables in fact delivered 33.7% of all the generated power across the full year, and blandly saying it like that does not give the full impression of actual supply and consumption of power, and you’ll see exactly what I mean in the next Post on this subject.

Firstly, let’s look at each of those Renewables in detail, one source at a time<and here, I’ll work from the bottom of the graph upwards. (and here, whilst referring to the image, I will be using the exact year round averages as opposed to the averages for just this one indicative day selected)

Hydro Power

Here’s the image again for Hydro Power Generation, which delivers 16558GWh  across the whole year, and that meant that Hydro delivered 7.98% of all generated power from every source, so lets’ call that a flat 8% That year round total equates to a daily average of 45.36GWh, at the same percentage 8%.

Whilst this source of power is classified as Renewable Power, it needs some explanation. It has always been a traditional source of power generation. Unlike the other three sources, which have an infinite source of their power generation, (well, supposedly anyway) Hydro power has a limited resource, the water behind the huge dam itself, and therein lies a problem not often mentioned by those people who are supporters of ‘renewable’ power. As much as green supporters support renewable power, they are against any new dams, because of that environmental impact, and in fact, green supporters go out of their way to find reasons that will ‘kill off’ any new dam at all, let alone one with a hydro power plant as part of the project. So, that’s why not very many, if any at all, new hydro plants will be constructed. Then, the water itself is a finite resource, and is reliant upon the weather, or the region itself being able to deliver enough water (like snow melt) to keep those hydro power plant dams full of the requisite water required to be able to generate the huge amounts of power required, if we are to do away with those sources of power that DO actually deliver all that huge amount of power needed absolutely. Here, some of you are thinking ….. well, what about Pumped Hydro, where the water generates power, and is then pumped back up to the upper dam, so it can be continually be used to generate power, you know, your typical ‘perpetual motion’ scheme. Well, that’s a fallacy that green supporters would like to have you believe, because Pumped Hydro IS NOT a generator of power. It is a nett consumer of power, because it requires more electricity to run the pumps which pump the water back ‘up the hill’ than the water itself coming back down, to generate power, and those losses are close to five or more percent.  So here, this renewable source of power is a finite one, and will not increase by enough too make much of an impact on the overall supply from those four sources of renewable power.

Wind Power

Here’s the graph for Wind Power Generation, which delivers 25216GWH of power across the full year, and that meant that wind generation delivered 12.15% of all the generated power from every source across the whole year, and that equates to a daily generation of 69.21GWH per day at the same percentage.

Hey, wait a minute I can hear some of you saying, is that right? I mean, for so long now we’ve been told that wind generation is just powering ahead, and is delivering so much power, and what that graph shows is not very much at all.

Well, yes, that graph is correct. That’s all there is for so much wind generation, 76 individual wind plants across Australia, wit a total Nameplate of 9854MW, and around 3300 of those individual huge wind towers with a turbine on top of each of them.

An this graph shows the maximum power generation under 4000MW. That just can’t be right!

Well, yes it is. If wind generation was a straight line across the page, then it would be at 2956MW, so, in fact, less than 3000MW. Wind is so variable that it only operates at a Capacity Factor of just 30% of its total.

Each day now for the last four years I have been collecting and Posting the daily data for wind generation in a Series of Posts at this, my Home Site, at this link detailing wind generation across Australia. Despite the Continent of Australia being roughly the size of the Continental United States, two thirds (read that again, as that’s TWO THIRDS, 66% of the total Nameplate for ALL wind plants in the Country) of those wind plants have been constructed in one area, and while that area is seemingly quite large, it is subject to passing weather systems, and every second one of those is a large High Pressure wind system, and every time one of those comes across, the bottom totally falls out of all wind generation.

As well as that, wind generation never gets even remotely close to following that Load Curve, the upper black line for power consumption, and more often than not, the most generated power is at a time when it is not really needed all that much, as that evening Peak power consumption time is singly THE most critical time of day when as much power as can be generated is needed to be in place. Wind generation has no relationship whatsoever to that time, and generates its power as the wind blows. Having kept that wind generation data for so long now, I can also tell you that more often than not there is around a 2000MW swing between the high and the low for each day, and if wind generation only averages 3000MW, then that’s a swing of two thirds of power generation each and every day. Wind generation has been as high as 7304MW, a huge amount really, and that’s at a Capacity Factor (CF) of 74%, but here, keep in mind that is just for ONE single five minute point in time. It has also been at an all time low of a little less than 600MW at a CF of less than 6%, and it is quite regularly less than 1000MW, and as I say when that happens ….. well, just what do you do when it regularly gets this low, and renewables are ALL we have to generate the power that is required ABSOLUTELY, all the time.

Solar Power Plant Generation

Here’s the graph for Solar Power Plant Generation, which delivers 10428GWH of power across the full year, and that meant that wind generation delivered 5.02% (rounded out to 5%) of all the generated power from every source across the whole year, and that equates to a daily generation of 28.57GWH per day at the same percentage.

It doesn’t look like much by when it’s shown by itself does it. And in fact, it’s NOT all that much really. There are 86 separate solar plants with countless billions of solar panels. All up, the total Nameplate for Solar Plant power comes in at 8506MW, and if you think wind power had a poor Capacity Factor, (CF) then be in for a rude awakening, as Solar Plant CF is only 13.98%, and really, that’s quite pitiful. In reality, it could be as high as 15%, as thios data is based on the number of Plants at the end of the year, and some new ones were added during the year, but even at 15%, that’ is stunningly low. As you can see from the graph, power does not start to be generated until 6.30AM and then it is back at zero at around 6PM, and this is the average. In Summer, it lasts longer (6AM til 7PM) and Winter, operates for a much shorter time. (7AM till 5.30PM) Even though that Nameplate is so high at 8506MW, wind generation ….. NEVER even gets close to generating that total, even in the middle of the day in Mid Summer. The best it gets to is around 5000MW in Summer, and in Winter, the maximum is around 3500MW.

So, even though this type of power plant is touted as the direction we need to take for the future, then, if that is to be true, then someone is leading us down the wrong path.

Rooftop Solar Power

Here’s the graph for Rooftop Solar power generation, and this delivers 17640GWH of power across the full year, and that meant that wind generation delivered 8.45% of all the generated power from every source across the whole year, and that equates to a daily power generation of 48.33GWH per day at the same percentage.

 

I explained about the steps in the earlier Post, also mentioning that actual power generation is a best case guess, as it is not measured at all, let alone accurately measured. None of the power is fed back to the outside grid. The generated power is either consumed by the home with the panels on the roof, or in nearby homes. The amount of power generated individually on roofs even with large systems is so small that it is only consumed locally, and cannot get fed any further back than the main electrical sub station in each suburb, where power is designed to only go in the one direction.

All those people who support renewable power will proudly proclaim in the loudest voices possible that Australia is one of the largest uptakers of rooftop solar panel power in the World. They also loudly proclaim that Australia now has a total Nameplate for rooftop panels of 17GW, and that’s a monumental amount ….. 17,000MW.

Okay, and remember I told you above that you’d be surprised how poorly Solar Plant power performed. Well here’s another shock then, because this rooftop solar power performs even worse than that. With a total year round power generation of 17640GWH, then that Nameplate of 17GW means that rooftop solar power operates at a Capacity Factor of, and wait for this ….. 11.84%, and that, just like Solar Plant power is actually even more pitiful.

There are just so many things that are wrong about rooftop solar power, and I won’t go into them, because ….. this one thing alone is enough to tell you how truly worthless it really is. If anything performed as poorly as this, it would be laughed out of existence. Instead, because it is considered to be green, renewable, and free, limitless power from the Sun, it’s become the answer to everyone’s dreams for power into the future. Well, if this is the answer, then someone is asking the wrong question.

*****

Okay, that’s those four renewable sources of power generation dealt with each one in isolation, so let’s prepare for the next post by showing that same image with all four of them back on the one graph as a lead in for the next Post. And I will be showing you something else in the next Post about this image, and without my letting on what that might be, look closely at the graph around those two very important times I mentioned in an earlier Post, that time of minimum power consumption, and the evening Peak of maximum power consumption.

This Post, while posted separately on this day, will be added to the main Sticky Post at the top of our site.

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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