Tasmania achieved 100% renewable electricity generation on 16 May 2026 between 17:35 and 18:00, with hydro and wind sources combining to meet all demand. Regional reference prices (RRP) remained moderate at approximately $88–$97/MWh during this period, reflecting the abundant renewable supply.
The high renewable penetration was driven by strong hydro generation (approximately 950–983 MW) supplemented by consistent wind output (102–140 MW), eliminating the need for gas-fired generation. The binding constraint T_BLINK_TV_NGZ (Basslink interconnector constraint to Victoria) with a marginal value of $7.31 million indicates that the interconnector capacity limit was the primary price driver, preventing excess Tasmanian renewable generation from flowing south and consequently capping RRP suppression despite 100% renewable availability.
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.