Australian Daily Electrical Power Generation Data – Monday 14th May 2018

Posted on Tue 05/15/2018 by

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By Anton Lang ~

This Post details the daily power consumption 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 the scale change for some of the images. That scale (the total power shown on the left hand axis) has been changed to show the graph at a larger size.

Monday 14th May 2018

Total Power Generation All Sources

Here, the black line is the total power generation from every source. This is also the same as for total power consumption, which is slightly lower after minor grid losses are taken into account.

The Blue line is all fossil fuelled power generation. The orange line is hydro power generation. The purple line is wind power generation, and the red line is for solar power generation.

Average Total Power Generation/Consumption – 22600MW

Daily Minimum – 18000MW

Daily Peak – 27400MW

Total Generated Power – 542.4GWH

All Fossil Fuels Total – Coal Fired and Natural Gas Fired Power Generation

Here, the upper black line is the total from all fossil fuels, and this is the same as the blue line in the image directly above.

The black line just under that top black line is the Sub Total just for coal fired power. Note here how closely that coal fired line follows the shape of the upper Load Curve, and this indicates that coal fired power can be ramped up and down to follow actual power consumption.

Average Coal Fired Generation – 17200MW

Average Percentage Of Total – 76.1%

Daily Minimum – 15100MW

Daily Peak – 18500MW

Total Generated Power – 412.8GWH

Natural Gas Fired Power Generation

This image for Natural Gas Fired Power Generation shows the gap between the total for all Fossil Fuelled Sources of power generation and Coal Fired Power Generation in the image directly above.

Note here how closely the shape follows the total power generation Load Curve in the top image, indicating how these natural gas fired plants are used to smooth out the load curve to match actual power consumption.

Note also that while coal fired power provides the bulk of the power, these natural gas fired plants are used to add more power to the system during those time periods during the day when consumption rises for the morning peak, and the main evening Peak.

Average Natural Gas Fired Generation – 2500MW

Average Percentage Of Total – 11.1%

Daily Minimum – 1200MW

Daily Peak – 4550MW

Total Generated Power – 60GWH

All Renewable Power Generation Versus Total Power Generation

This Image shows just the gap between total power generation from every source and the total power from renewable sources only. It is the same image as the first image at the top here, only with the fossil fuelled total (the blue line) removed from the graph, As in that top image, it shows Hydro Power, (orange line) wind power, (purple line) and solar power. (red line) What I have then done is added the black line just above those coloured lines and this indicates the Sub Total of power from those three renewable sources only. This is to highlight the gap between the total power generation and the total from renewable sources alone.

All Renewable Power Generation (Does not include rooftop solar generation)

This image is the same as for the one directly above for all renewable power, only with the total from all sources removed from the graph. As the scale of the left hand vertical axis has now changed, you can better see the detail of all renewable power. Again, the orange line is for hydro, the purple line is for wind, and the red line is for solar, and the black line is the Sub total for all renewable power. The other colour just showing indicates smaller plants, mostly using biofuels as their fuel source, tiny plants adding up to a very small total and for a short time duration.

Average Renewable Generation – 2900MW

Average Percentage Of Total – 12.8%

Daily Minimum – 1300MW

Daily Peak – 4800MW

Total Generated Power – 69.6GWH

Hydro Power Generation

This image shows all Hydro power generation. It is the same as the orange line in the top image for power generation from all sources.

Again, note here that the shape of this load curve follows the shape of the main load curve for all power generation, in that it has similar peaks in the morning and for the man evening Peak. The coloured lines at the bottom of this graph indicate the power generation from each of the hydro plants in this coverage area.

Average Hydro Generation – 2420MW

Average Percentage Of Total – 10.7%

Daily Minimum – 1250MW

Daily Peak – 4200MW

Total Generated Power – 58.1GWH

Wind Power Generation

This image shows the total power generated by every wind plant in this vast coverage area. It is the same as for the purple coloured line in the image at the top showing generation from all sources.

The total Nameplate for all these wind plants is just under 5000MW.

Note that the shape of this load curve does not follow the shape of the main load curve for total power generation. Wind power generates its power only when the wind is blowing, hence it does not follow actual power consumption levels.

Average Wind Generation – 350MW

Average Percentage Of Total – 1.54%

Daily Minimum – 140MW

Daily Peak – 780MW

Total Generated Power – 8.4GWH

Solar Power Plant Generation

This image shows the total power generated from all the solar power plants in this coverage area. This is the same as for the red coloured line you can just see in that top image.

The total Nameplate for all these 16 solar plants is just lower than 1000MW.

Average Solar Plant Generation for hours of generation – 265MW (7AM till 5.30PM)

Average Solar Plant Generation across the whole 24 hour day – 120MW

Average Percentage Of Total across the whole 24 hour day– 0.53%

Daily Minimum – Zero

Daily Peak – 410MW

Total Generated Power – 2.9GWH

Rooftop Solar Power Generation

As this source of power generation is classed as ‘behind the meter’, it is not included in the total power generation. Note here that the State of Queensland (QLD on the legend under the graph) is broken down into four separate areas as this is the largest State with the largest number of installations.

While the total Nameplate changes often, the latest information is that the total is now 7800MW, and that is a large total. However, that total equates to 1.8 Million homes with panels on their roof. That equates to an average sized installation of 4.3KW. Most of the power is consumed by the homes with the panels, and what is fed back to the grid, while seemingly still high is spread across that huge number of installations across the whole of this coverage area.

Average For Hours of Generation – 2370MW (7AM till 5.30PM)

Average Rooftop Solar Generation across the whole 24 hour day – 1040MW

Average Percentage Of Total across the whole 24 hour day – 4.6%

Daily Minimum – Zero

Daily Peak – 3700MW

Total Generated Power – 25GWH

Notes

The total percentages for coal fired power, natural gas fired power and all renewables adds up to 100%.

The total percentages for Hydro, Wind, and Solar adds up to the total percentage for all Renewables.

For total power in GWH, multiply the average daily power by 24.

Comments

The total power generation/consumption load Curve is now taking the distinct shape it has during the Winter Months.

Note the similarity between the Load Curves for the conventional forms of power generation (coal fired, natural gas and hydro) and the main Load Curve for the total.

This was a poor day for wind power generation, barely averaging over 300MW and the total for this day indicates a Capacity Factor (CF) of only 6.6%, considering the average yearly CF is 30%.

Note that despite a seemingly huge total for rooftop solar power of 7800MW, it only reached a maximum of 3700MW for an hour and a half either side of Midday, and the average even during those hours of generation was only 2370MW, and when averaged across the whole 24 hour period, was just over 1000MW. Even that Peak of 3700MW was only 17% of what was actually being consumed during that time of its peak. It has no effect on coal fired power as that operates as it always has, and the only difference is that less natural gas fired plants are needed to top up the grid during those hours of operation.

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.

OzPowerGenerationTFO

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