Tasmania achieved exceptional renewable penetration of 99.3% during the evening settlement period of 14 June 2026, with hydroelectric generation dominating at approximately 1,078–1,156 MW and wind contributing 73–96 MW. Regional reference prices remained stable in the AUD 70–71/MWh range throughout the period, indicating orderly market conditions despite the high renewable share.
The sustained high renewable output reflects Tasmania's substantial hydroelectric capacity and moderate wind generation meeting demand during off-peak evening hours. Binding constraint F_MAIN+RREG_0220 with marginal values ranging from 4.96–7.79 $/MWh indicates this constraint was the active limitation on pricing, suggesting interconnector or network flow restrictions were constraining the market rather than generation scarcity, which helped maintain prices at moderate levels despite near-total renewable displacement of conventional generation.
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.