A major binding constraint (T_BLINK_TV_NGZ) with an exceptionally high shadow price of $8.35 million/MWh occurred in TAS1 during the early morning of 9 July 2026. Regional prices fluctuated between $67.89 and $96.28/MWh across the five-minute settlement intervals, with Tasmania's generation mix dominated by hydro (approximately 1,100–1,220 MW) and modest wind output (42–76 MW).
The extreme marginal value of the binding constraint T_BLINK_TV_NGZ indicates a severe physical or operational limit was reached, creating acute scarcity value in the dispatch. The constraint's dominance over all other binding constraints (the next highest shadow price was only $13.08) suggests a narrow transmission or generation pathway was saturated, forcing the market to pay a substantial premium to manage the shortfall within Tasmania's region.
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.