NSW1 experienced a moderate price spike reaching $446.45/MWh during the 11:10 interval on 30 July 2026, followed by a sharp correction to $311.91/MWh in the next interval. The spike represented a 49% increase from the preceding five-interval average of approximately $300/MWh, before prices normalised within two intervals.
The binding constraints F_TASCAP_RREG_0220 and F_T+RREG_0050 with marginal values ranging from $3.75 to $15.45/MWh were active during this period, indicating transmission or regulation-related dispatch limitations constrained the market. The rapid price recovery in the subsequent interval suggests the constraint-driven scarcity was transient, likely reflecting a temporary imbalance between supply and regional demand requirements rather than a sustained shortage in generation capacity, which remained substantial across coal, hydro, battery and gas-fired sources.
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.