Low, getting lower … AEMO’s forecasts for ‘Market Demand’ on Saturday 28th September 2024

On Tuesday afternoon this week, 24th September 2024 we noted that ‘AEMO issues the (second ever) ‘Minimum System Load’ Market Notice for Victoria on Sat 28th Sept 2024 (AFL Grand Final Day)’.

… The challenge of ‘not enough demand’ was also noted elsewhere, and there has been various discussion about this at ‘nerd corner’ within social media that I’ve seen

Since that Market Notice 118421, the AEMO also issued a notice for today (Friday 27th September 2024), as noted here … but there’s been no update (i.e. in Market Notices) yet about expectations for Saturday.

So I thought I’d quickly power up the ‘Forecast Convergence’ widget in ez2view to quickly have a look:

2024-09-27-at-05-35-ez2view-ForecastConvergence-VIC-TotalDemand-STPASA-FullView

The low points forecast for later today (the pre-AFL-GF public holiday in Victoria) and tomorrow (AFL GF) are clearly visible.

Leaving aside the jokes about Victorians abandoning the state ‘en masse’ without a local team to support (go Lions?!) it’s clear that a major contributor will be the gangbusters rooftop PV pummeling otherwise suppressed long-weekend springtime Underlying Demand.

Let’s zoom into the forecasts for tomorrow and have a closer look:

2024-09-27-at-05-35-ez2view-ForecastConvergence-VIC-TotalDemand-STPASA-ZoomedView

Remember that AEMO had written the following at 14:54 on Tuesday 24th September in MN118421:

Minimum regional demand is forecast to be 1638 MW at 1300 hrs,

I did have a question about which particular measure of demand the AEMO was using for these numbers (remember the gory details) but I did find a forecast for 1,638MW in ‘TotalDemand’ (selected in this view of ‘Forecast Convergence’ widget in ez2view) published at 14:00 on Tuesday 24th September … so presumably feeding into the Market Notice issued that same hour.

We see from the image above that the more recent forecasts are lower still (i.e. 1,483MW for 13:00 and 1,481MW for 12:00) … though still not below the MSL2 threshold (of 1,365MW) the AEMO noted in that Market Notice, at which some actions might be triggered, perhaps?

 

 

Watch this space…


About the Author

Paul McArdle
Paul was one of the founders of Global-Roam in February 2000. He is currently the CEO of the company and the principal author of WattClarity. Writing for WattClarity has become a natural extension of his work in understanding the electricity market, enabling him to lead the team in developing better software for clients. Before co-founding the company, Paul worked as a Mechanical Engineer for the Queensland Electricity Commission in the early 1990s. He also gained international experience in Japan, the United States, Canada, the UK, and Argentina as part of his ES Cornwall Memorial Scholarship.

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