Commodity Demand — QLD1: Wednesday 26 August 2026
Queensland spot price sits at $289.69/MWh as of 06:30 AEST, with demand at 6,693 MW and climbing through the evening peak that began building from 18:00. This is a sharp escalation from the $115/MWh level recorded 24 hours earlier at similar demand (~6,590 MW), confirming price is responding to more than just the demand figure alone — tightening reserve margins and reduced renewable output (18.3% currently, down from over 40% overnight) are compounding the demand-side pressure. Black coal is carrying 5,689 MW of the current 7,080 MW generation stack, with battery storage contributing 366 MW and wind 682 MW, leaving thin headroom as demand pushes toward the day's peak band.
The demand trajectory overnight shows the now-familiar trough-to-peak swing: demand bottomed near 4,540 MW around 03:55-04:00 AEST when prices briefly went negative (-$6/MWh at 05:00), then climbed steadily through the morning to a shoulder peak of 7,636 MW at 08:00, where prices held in the $100-140/MWh band. Demand eased through the middle of the day to a low-7,000s/high-6,000s range into the afternoon, before reaccelerating from 18:00 as the evening peak set in — this is where price sensitivity has been most acute, with demand rising from 5,738 MW at 18:00 to 6,693 MW by 20:30, a 955 MW lift that has driven prices from $115/MWh to $290/MWh, a near 2.5x move on a 17% demand increase. That non-linear response indicates the region is now operating close to the margin where each additional MW of demand draws increasingly expensive dispatch.
AEMO's forecast trajectory points to continued volatility overnight: the market expects a sharp pullback to $121/MWh by 21:30 and a collapse toward $6-25/MWh through the 23:00-04:00 window as demand falls into the overnight trough, consistent with the load-shifting windows identified between 23:00 and 05:00 AEST offering savings of $190-205/MWh versus current peak pricing. However, forecasts flag a strong re-tightening tomorrow morning, with prices projected to climb back to $123/MWh by 08:00 and peak near $174/MWh by 09:00 AEST, reinforcing that QLD's price risk is concentrated in the two daily ramp windows — morning (07:00-09:00) and evening (19:00-20:30) — where demand growth outpaces the flexible generation response.
No demand-side AEMO notices are active for QLD today — the regional market notices concern transmission line contingency reclassifications (Mudgeeraba-Terranora lines, resolved by 19:58) and non-conformance events in NSW1/SA1, none of which materially affect QLD's supply-demand balance. The key driver behind today's price action remains the interaction between the steep evening demand ramp and the declining renewable share as solar output fades into the evening, leaving thermal and battery dispatch to absorb the marginal load at a premium.