commodity demand tas — TAS1

Tasmania's spot price sits at $107.67/MWh with demand at 953.59 MW at 16:30 AEST, tracking a clear morning ramp from the overnight trough. Demand bottomed around 844 MW in the early hours before climbing steadily through the pre-dawn period, crossing 900 MW by 15:35 AEST and continuing to build. The price response to this demand lift has been orderly — the transition from the overnight $96/MWh band to the current $107–108/MWh range occurred progressively as demand passed through the 870–920 MW zone, with no material price spikes emerging despite the 13% demand increase from trough to present.

The notable exception this morning was a brief $161.03/MWh spike at 14:35 AEST when demand sat at just 863.71 MW — well below current levels — pointing to a supply-side constraint or dispatch event rather than demand pressure. That spike resolved immediately, with price snapping back to $96.72/MWh the following interval. Today's demand profile mirrors the Saturday pattern visible in the overnight data: a prolonged soft trough between midnight and 04:00 AEST followed by a steady morning build. With demand now at 953 MW and rising, the typical Saturday peak of 1,050–1,130 MW (seen in comparable morning periods in the price history) is likely to be approached through the late morning and early afternoon AEST window.

Forecast pricing points to $141.51/MWh for the evening period, a material step up from current levels that aligns with demand climbing toward the 1,000–1,100 MW range. The $33/MWh gap between current and forecast prices signals the market is pricing in tighter hydro dispatch conditions as afternoon heating demand builds — weather data shows 11.3°C with a heating demand index of 6.7, zero solar potential, and minimal wind at 0.5, meaning hydro at 324.78 MW carries the bulk of local generation with negligible renewable support from wind (8.78 MW). Gas OCGT remains offline.

Demand-side participants should note that price sensitivity in the 950–1,050 MW band has historically been moderate in Tasmania given hydro's flexible dispatch profile, but the forecast jump toward $141.51/MWh suggests generators are already pricing in marginal reservoir or interconnector constraints for the afternoon peak. The grid stress score of 81.9 reinforces this — conditions are tighter than the headline price implies, and any demand surprise above 1,100 MW this afternoon carries meaningful upside price risk beyond the forecast level.