Tasmania achieved 100% renewable energy penetration during the evening of 9 June 2026, with wind and hydro generation totalling approximately 1,800 MW across the settlement period. Regional reference prices remained stable in the $76–$79/MWh range, indicating balanced supply-demand conditions despite the high renewable contribution.
The sustained 100% renewable generation was supported by consistent wind output (414–431 MW) and hydro generation (316–389 MW), which together met regional demand without requiring gas-fired generation. Multiple binding constraints with marginal values between $3.44 and $6.79/MWh (constraint IDs F_TASCAP_RREG_0220 and F_T+RREG_0050) suggest that operational or network limits, rather than fuel availability or generation scarcity, were the primary price drivers 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.