Commodity Demand — TAS1: Sunday 24 May 2026

Tasmania's spot price sits at $103.20/MWh with demand at 1,194.78 MW as of 06:30 AEST, and the region is tracking through what is a clear evening demand build. The price-demand relationship across today's history is well-defined: demand below ~1,050 MW corresponds to the $86–$87/MWh pricing band seen in the overnight trough; demand in the 1,050–1,180 MW range settles into the $97–$102/MWh corridor; and demand above 1,180 MW pushes price into the $103/MWh range where Tasmania sits now. The sole price outlier was a brief spike to $149.10/MWh at 06:05 AEST when demand reached 1,135.63 MW — a supply-side event rather than a demand-driven move, given demand was actually lower than adjacent intervals that cleared at $103/MWh. The day's demand peak was 1,347.22 MW at 07:55 AEST (17:55 UTC), which nonetheless held price firmly at $102.18/MWh, indicating available hydro capacity was sufficient to absorb the morning peak without material price escalation. That decoupling of the demand peak from any price premium reflects the dispatchable nature of Tasmania's generation mix: hydro at 1,149.55 MW and wind at 17.35 MW are meeting all operational demand with gas OCGT at zero.

The demand trajectory from here is the key price driver for today. Demand bottomed near 934 MW around 23:10 AEST, climbed steadily through the evening, and is now at 1,194.78 MW and rising. The current rate of build — approximately 65 MW over the past 30 minutes — is consistent with the evening residential heating ramp typical of late-May in Tasmania, with current conditions showing 9.9°C, 100% cloud cover, and a heating demand index of 8.1. Overnight temperatures are forecast to remain near 10°C across the week with 100% cloud cover and negligible wind, sustaining elevated heating demand through tomorrow's early morning period. The demand trajectory is expected to continue climbing toward the 1,200–1,300 MW range over the next two to three hours before easing into the post-midnight trough.

Forward forecasts for the 07:00 AEST half-hour (21:00 UTC) are centred at $103.20/MWh, with the most recent AEMO pre-dispatch runs showing no material escalation above current spot levels. The 07:30 AEST interval (21:30 UTC) is forecast at $103.22–$115.49/MWh depending on the run, with the spread indicating some dispatch uncertainty as demand approaches the 1,200–1,250 MW range. Forecasts extending to 08:00–09:00 AEST (22:00–23:00 UTC) show broader variability between $103.18/MWh and $116/MWh, consistent with the typical pre-dispatch noise around the overnight demand peak. The base case holds prices in the $103–$105/MWh range through midnight AEST, stepping down toward $97/MWh as demand retreats below 1,150 MW in the early hours of Tuesday. Traders should watch for any demand surprise above 1,280 MW, which historically in this dataset has corresponded with the threshold where pre-dispatch forec