Tasmania experienced high renewable penetration at 91.8% during the evening of 14 July 2026, with hydro and wind generation combining to supply approximately 4,031 MW across six settlement periods. Regional reference prices (RRP) ranged from $67.52 to $78.25/MWh during this period, with modest volatility despite the elevated renewable contribution.
The high renewable penetration reflects strong hydro and wind output, with combined renewable generation consistently exceeding 2,400 MW per settlement interval and gas-fired plant providing only marginal dispatchable capacity at ~140 MW. Binding constraints with marginal values between $2.93 and $3.92/MWh—particularly F_T+RREG_0050 and F_TASCAP_RREG_0220—indicate that network or regional stability limits were active, likely supporting the modest pricing levels observed rather than creating significant price spikes typical of supply scarcity.
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.