Commodity Demand — TAS1: Saturday 29 August 2026
Tasmania spot price sits at $66.00/MWh at 06:30 AEST, with demand at 957 MW — mid-range for the region's typical daily band. This follows an overnight pattern of extreme price sensitivity: demand troughed near 776-790 MW between 03:00-05:30 AEST, coinciding with negative prices as low as -$35.16/MWh, before climbing back through the 900s as the morning ramp began. The relationship is stark today — every ~100 MW of demand recovery has pulled prices up by $30-50/MWh through the shoulder periods, reflecting Tasmania's thin reserve margins once hydro dispatch beyond baseload is required.
The overnight price collapse aligns with hydro generation of 1,163 MW against wind at 231 MW, leaving the system long into low demand, with renewable penetration at 91.76% and carbon intensity at 0.0535 tCO2/MWh. As demand troughed below 800 MW, the market repeatedly cleared negative, with 20+ intervals below zero between 02:00 and 05:00 AEST — a clear signature of surplus hydro and wind output with nowhere to go.
The forecast trajectory points to a firmer pricing day ahead. AEMO's forward curve has prices climbing sharply from the current $66/MWh into the $95-103/MWh band across 08:00-12:00 AEST target times, before easing to $73-82/MWh through the afternoon. This is consistent with the historical demand pattern — Saturday's equivalent window saw demand peak near 1,135 MW around 08:20-08:45 AEST, driving prices into the $80-86/MWh range, with a secondary firming through 11:00-12:30 AEST above $85-91/MWh. Expect today's demand to follow a similar arc, with the 08:00-12:00 AEST window the key price risk period as morning heating load and industrial ramp-up compound.
No Tasmania-specific demand-side notices are active today — the AEMO minimum system load and intervention notices in the batch all relate to SA region voltage and demand conditions, not TAS1. Tasmania's own MSL and constraint activity in this data is limited to a lightning-related contingency reclassification on the Farrell-Reece and Tungatinah lines, both since cancelled, with no bearing on today's demand-price dynamic. Grid stress scores at 60.6 reflect the wide overnight-to-peak swing rather than any binding network constraint.