Commodity Demand — QLD1: Saturday 20 June 2026
Queensland spot price sits at $82.88/MWh with total demand at 5,642 MW as of 06:30 AEST, a level consistent with a Sunday winter morning that has already passed its overnight trough. The overnight low bottomed near 4,128 MW around 11:00–11:30 AEST with prices collapsing to $26.81/MWh, illustrating the sharp price sensitivity visible across today's data: each 1,000 MW step up in demand correlates closely with a $40–50/MWh lift in spot price. The morning ramp was swift — demand climbed from ~4,500 MW at 13:30 AEST to a daytime peak of 7,245 MW by 07:50 AEST, driving prices into the $88–$90/MWh range. Being a Sunday on the winter solstice, today's demand is running structurally below weekday levels, which is moderating prices relative to what an equivalent midweek heating load would produce.
The forecast profile is where today's key price risk sits. Prices are expected to hold around $80–$81/MWh through 07:00–07:30 AEST before escalating sharply into the business morning, with the forecast peaking at $187.71/MWh at 09:30 AEST and sustaining above $100/MWh from 07:00 through to approximately 13:00 AEST. This step-change in forecast pricing — from sub-$81/MWh now to nearly $188/MWh within three hours — reflects the combination of winter heating demand building into the mid-morning, 92% cloud cover suppressing solar output across the day, and Directlink controls remaining unavailable (N-Q-MNSP1 constrained) which limits Queensland's import flexibility from NSW. A non-conformance notice on Tarong #4 scheduled for 13:25–13:45 AEST (−33 MW) is a minor dispatch risk but immaterial to the broader price trajectory.
Prices ease through the afternoon, with forecasts returning to $90.37/MWh by 16:00 AEST and $84.50/MWh by 18:00 AEST as demand rolls off the midday peak. The overnight trough ahead — forecast at $64.57/MWh around 02:00–03:00 AEST tomorrow — offers the lowest-cost load windows of the next 24 hours, saving approximately $120–$123/MWh against the morning peak. For demand-side participants, the window between now and 06:00 AEST tomorrow morning is the optimal shift opportunity before the next morning ramp reprices the market back above $90/MWh.