A major binding constraint event occurred in TAS1 on 27 August 2026, with constraint T_BLINK_TV_NGZ reaching an exceptionally high shadow price of $8.352 million, indicating severe scarcity or physical limitation. Over the six settlement periods captured, regional reference prices ranged from $26.82/MWh to $45.16/MWh, reflecting the constraint's binding status during this evening peak period.
The binding constraint T_BLINK_TV_NGZ with its extreme marginal value of $8.352 million indicates a critical physical or operational limit preventing efficient energy flow in the region, directly constraining dispatch and elevating scarcity rents. The generation mix shows substantial hydro output (964–1281 MW across three sources) and moderate wind and gas-OCGT contributions, suggesting that despite available capacity, the binding constraint prevented optimal utilisation of supply resources, creating the severe price elevation.
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.