Winter evening peaks pushed prices across the NEM overnight, with VIC1 leading at an average of $144/MWh and a $245/MWh intraday high. NSW1 averaged $137/MWh (max $232/MWh) and SA1 touched $220/MWh during the 17:00–18:30 AEST window before easing. QLD1 was the softest mainland region at $94/MWh average. By 06:30 AEST, morning demand ramps are underway — QLD1 spot had already climbed to $144.55/MWh on 6,857 MW demand, while VIC1 sat at $148.84/MWh on 6,218 MW. QNI is flowing 569.91 MW southward from QLD into NSW and binding at its import limit, directly shaping the NSW–QLD spread. Watch the morning peak across the southern regions as working-day load builds.
Tasmania (TAS1) is the standout region over the past 24 hours — for two distinct reasons running in parallel. First, TAS1 achieved 100% renewable penetration during the evening, with hydro output of 1,024–1,127 MW and wind contributing 52–118 MW, holding regional prices at a stable $70–72/MWh and posting 0.00 tCO₂/MWh — the cleanest dispatch on the NEM. Second, and simultaneously, the binding constraint T_BLINK_TV_NGZ recorded an exceptional shadow price of $7,308,000/MWh on multiple occasions across morning and evening periods — signalling severe network congestion within the island's transmission system. Regional prices during constraint events ranged from $41/MWh to $106.78/MWh, illustrating how a fully renewable generation mix and serious network limitations can coexist in the same settlement day.
Western Australia's wholesale market (WA1) was among the quieter regions in the 24-hour window, averaging $82/MWh with a daily high of $172/MWh — comparable to QLD1's range and notably below the east-coast evening spikes. No significant constraint or supply events were flagged for WA1 in the data available for this period.