South Australia achieved 97.9% renewable generation penetration during the settlement period of 24 August 2026 at 22:05–22:35 UTC, driven predominantly by wind generation of 1,551 MW supplemented by battery discharge of 684 MW. Regional reference electricity prices (RRP) remained moderate in the $83–$88/MWh band throughout the interval, reflecting the abundant renewable supply.
The high renewable penetration was primarily enabled by substantial wind output (1,551 MW) combined with coordinated battery discharge (684 MW total across reported entries), which together satisfied demand whilst displacing conventional gas generation to minimal levels (42 MW CCGT, 0.2 MW OCGT). Multiple binding constraints with marginal values in the $4–$5/MWh range—including F_TASCAP_RREG_0220 at $5.49/MWh and F_T+RREG_0050 at $4.28/MWh—indicate that network or reserve requirement limits were active; these constraints likely moderated price upward from what would otherwise have been lower levels given the renewable surplus, and may have prevented further renewable energy export or injection 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.