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Market analysis of 27 September 2024

Regional demand in South Australia peaked at 1,625.02 MW at 19:40 on 27 September 2024. The day’s lowest observation was 77.22 MW at 12:50, so demand moved by 1,547.80 MW from trough to peak.

At the demand peak the wholesale price was AUD 120.89/MWh. The day’s highest price, AUD 189.02/MWh, came at 18:30, and the daily price average was AUD 27.96/MWh.

The Demand Profile Through The Day

The first chart traces five-minute demand and dispatchable generation in South Australia, in fixed UTC+10. The gap between the two lines reflects the region’s net interchange with its neighbours across the day.

South Australia Demand And Generation — 27 September 2024; 2024-09-27 | Five-Minute Observations | UTC+10
Regional demand and dispatchable generation in South Australia on 2024-09-27. Source: Network Map; MW, fixed UTC+10.

How The Five Regions Compared

The second chart compares each region’s peak demand for 27 September 2024. South Australia’s peak of 1,625 MW compares with New South Wales 9,567 MW, Queensland 7,461 MW, Victoria 5,799 MW, Tasmania 1,290 MW.

Peak Demand By Region On 27 September — 27 September 2024; 2024-09-27 | Highest Five-Minute Demand | MW
Peak regional demand by region on 2024-09-27. Source: Network Map; MW.

What The Day Means For Operations

For a battery operator, the question is where charging and discharging belonged within this curve. For a generator or retailer, the same timestamps show which intervals carried the most value or cost. Reviewing the day interval by interval keeps these signals visible where a daily average would hide them.

This analysis uses Network Map’s regional observations dated 27 September 2024. Prices are in Australian dollars per megawatt-hour, times use fixed UTC+10, and daily averages give equal weight to each five-minute observation.

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