commodity demand tas — TAS1

Tasmania sits at 1,055.68 MW and $72.19/MWh at 06:30 AEST on Saturday 4 April, demand having climbed steadily through the evening from a overnight trough of around 774 MW at 12:25 AEST. The price-demand relationship across today's data is pronounced: when demand pushed through 1,100 MW during the 18:00–19:00 AEST window (peaking at 1,134.81 MW at 18:40 AEST), prices locked into a sustained $96.77/MWh band — a near 35% premium over current levels. Conversely, the deep overnight trough drove prices as low as $50.13/MWh, illustrating tight marginal cost stacking in a small, relatively isolated market where incremental demand quickly activates higher-cost dispatch.

The morning ramp is underway and the price trajectory that shaped today's earlier hours is instructive for what lies ahead. Forecasts for the 07:00 AEST half-hour (21:00 UTC target) point to $76/MWh, easing from the $96–108/MWh range that pre-dispatch was projecting earlier in the day — a material downward revision as updated dispatch conditions fed through. The 07:30 AEST and 08:00 AEST half-hours are currently tipped at $76.01/MWh and $85.08/MWh respectively, suggesting the market anticipates modest upward price pressure as Saturday morning demand builds but does not expect a repeat of the sustained sub-100 MW supply squeeze seen during last evening's peak.

Multiple AEMO market notices flag prices under review for intervals across the 05:15–06:10 AEST window this morning under Clause 3.9.2B (Manifestly Incorrect Inputs), with the 05:50 AEST interval already confirmed unchanged. Traders should treat any settled prices in that window with appropriate caution until outstanding reviews are resolved. The notices do not identify specific affected regions, so any NEM-wide dispatch anomaly could have flowed through to TAS1 via Basslink interconnector flows, which remain a key swing factor in Tasmanian price formation given the region's relatively small native demand base.

Demand-side outlook for the Saturday is for a typical weekend profile — a measured morning build toward a midday plateau and a moderate evening peak unlikely to replicate last evening's 1,130+ MW sustained load. Load windows from 10:00 AEST (00:00 UTC) onwards show forecast prices stepping down into the $20–55/MWh range through the small hours, with "excellent" quality ratings on those windows, indicating the market expects comfortable surplus conditions once tonight's demand retreats. The key watch point for today is whether the morning demand ramp sustains prices above $76/MWh through the 08:00–10:00 AEST window or whether softer Saturday activity keeps the market in the lower $70s.