Tasmania achieved 100% renewable energy penetration during the evening of 6 June 2026, with hydro and wind generation totalling approximately 1,097–1,263 MW across the settlement periods. Regional reference prices remained stable at approximately 87.22–87.24 $/MWh, with no dispatchable gas-fired generation required.
The high renewable penetration was supported by sustained hydro output (615–633 MW) and moderate wind generation (445–464 MW), which collectively met regional demand without thermal support. Binding constraints with marginal values of 4.90–4.98 $/MWh indicate that network or system security limitations—rather than energy scarcity—were the active price drivers during this period, consistent with the flat, modest price outcomes observed across the six settlement intervals.
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.