A major binding constraint (T_BLINK_TV_NGZ) with an exceptionally high shadow price of $8.352M/MWh emerged in TAS1 during the early morning settlement period of 14 September 2026. Regional electricity prices spiked to $20.06/MWh during this interval, reflecting significant supply-demand tension despite relatively strong generation from hydro, wind and gas-fired plant.
The binding constraint T_BLINK_TV_NGZ with a marginal value of $8.352M indicates a critical network or operational limit was actively restricting dispatch in Tasmania. The volatility in spot prices across consecutive 5-minute intervals (ranging from $5.50 to $20.06/MWh) suggests the constraint was limiting available supply options, forcing the market to rely on higher-cost generation or alternative dispatch configurations to manage the physical restriction.
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.