A major binding constraint (T_BLINK_TV_NGZ) with an exceptionally high shadow price of $7,308,000/MWh was active in Tasmania on 13 June 2026 during the early afternoon period. Regional prices remained elevated and volatile, ranging from $46.81 to $67.62/MWh across the 40-minute window, whilst generation was dominated by hydro (629–674 MW) and wind (493–502 MW) with no gas-fired generation.
The extreme marginal value of the binding constraint indicates a severe supply-demand imbalance or physical network limitation in Tasmania that could not be relieved by available generation adjustments. The constraint remained active despite substantial hydro and wind generation, suggesting the limitation was not driven by insufficient supply but rather by a binding operational or transmission restriction that forced the region to operate at a particular dispatch level, creating significant scarcity value and volatile pricing pressure.
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.