SA1 experienced a moderate price spike reaching $374.66/MWh in the 06:25 interval, with prices sustaining at $374.38/MWh in the following interval—approximately 45% above the preceding baseline of ~$230/MWh. The spike was sharp and transient, with prices falling back to $312/MWh by 06:35, indicating a temporary supply-demand imbalance rather than sustained pressure.
The price elevation corresponds with multiple binding constraints active in the region, with F_T+RREG_0050 holding the highest marginal value at $4.90/MWh, suggesting regulation service constraints were the primary limiting factor on supply availability. The generation mix at the time included gas-fired plant (OCGT and CCGT totalling ~862 MW) as the dominant dispatchable source, alongside wind (565 MW) and battery storage (221 MW combined), indicating that constraint-driven scarcity rather than outright generation shortage drove the spike during this early morning period.
Causal analysis generated by gridIQ's synthesis model from live AEMO market data: dispatch prices, generation mix, interconnector flows and market notices in the interval surrounding the event.