Tasmania (TAS1) achieved 100% renewable generation on 24 June 2026, with hydroelectric output comprising approximately 2,500 MW and wind generation around 20 MW across the settlement period. Regional reference prices (RRPs) settled in the range of $79–$90/MWh, declining sharply after the 20:00 settlement and stabilising around $79/MWh thereafter.
The high renewable penetration reflects abundant hydroelectric availability, which is typical for Tasmania's generation profile. RRPs remained moderate despite 100% renewable supply, likely because multiple binding constraints with material marginal values (F_T++NIL_MG_RECL_R6 at $14.16/MWh and F_TASCAP_RREG_0220 at $4.97/MWh) were active, indicating that network or system security limitations—rather than energy scarcity—were the primary drivers of price formation during this period.
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.