A major binding constraint (T_BLINK_TV_NGZ) with an exceptionally high shadow price of $8.352 million/MWh became active in TAS1 during the 21:55–22:20 period on 10 September 2026. Regional electricity prices declined from $85.20/MWh to $45.14/MWh over this six-interval window, indicating price relief as the constraint's impact eased.
The extreme marginal value of the T_BLINK_TV_NGZ binding constraint suggests a severe physical limitation on power transfer or network flow was binding dispatch in TAS1. The high shadow price reflects scarcity value created by the constraint limiting system flexibility, though prices fell as generation conditions stabilised across hydro (averaging ~1,267 MW), wind (~157 MW), and gas-OCGT (~207 MW) sources, allowing the constraint to become less restrictive.
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.