A major binding constraint (T_BLINK_TV_NGZ) with an exceptionally high shadow price of $7.308 million per MWh activated in TAS1 during the early morning period of 7 June 2026, whilst the region's electricity price remained relatively stable at approximately $80/MWh. The constraint remained binding across multiple consecutive dispatch intervals, indicating a sustained operational limitation.
The unusually high marginal value of the binding constraint T_BLINK_TV_NGZ relative to the regional reference price suggests a severe scarcity condition or network limitation preventing efficient energy flow. Tasmania's generation mix during this period was dominated by hydro (approximately 720 MW average) and wind (approximately 430 MW average) with no gas generation available, indicating that the constraint was not driven by conventional marginal generation costs but rather by a physical network or system security limitation that could not be relieved by available generation 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.