A major binding constraint (T_BLINK_TV_NGZ) with an exceptionally high shadow price of $7.308 million occurred in TAS1 on 10 June 2026 around 23:35 UTC, coinciding with a sharp spot price spike to $200.24/MWh. The constraint remained active across multiple binding constraint equations, indicating sustained transmission or network limitation affecting the region.
The extreme shadow price on binding constraint T_BLINK_TV_NGZ suggests severe physical or operational congestion limiting power transfer capacity during this period. The simultaneous activation of multiple constraint equations (F_T++NIL_MG_R6 with marginal values of $139.46, $33.93, and $25.89, plus F_T+LREG_0050 at $12.56) indicates the constraint was the primary bottleneck preventing dispatch optimisation, with supply-demand imbalance forcing prices upward when the constraint prevented adequate generation redistribution across the network.
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.