VIC1 experienced a moderate price spike with regional reference prices reaching $311.51/MWh across two consecutive intervals (10:50–11:00 on 30 July 2026), representing an elevation above the preceding five-interval average of ~$287/MWh. Price volatility was notable throughout the period, with swings between $249.79/MWh and $314.66/MWh in adjacent intervals.
The spike occurred amid elevated reliance on gas-fired generation (GAS_OCGT contributing ~1,803 MW combined) and battery discharge (530.83 MW), suggesting tight supply conditions or rapid demand swings within Victoria. Multiple binding constraints with marginal values ranging from $3.74–$15.45/MWh (including F_TASCAP_RREG_0220 and F_T+RREG_0050) indicate physical network limitations constrained the supply response, preventing lower-cost generators from serving the spike and supporting higher price outcomes.
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.