Autumn evening demand drove prices across the NEM into elevated territory by the AEST evening shoulder, with SA1 reaching $138/MWh and NSW1 sitting at $118.53/MWh as of 06:35 AEST — both well above their 24-hour averages. The Heywood interconnector was fully loaded at 515.77 MW export into South Australia, and Murraylink was similarly binding, limiting relief to SA from Victorian supply. Sunday trading today carries a lighter demand profile; watch SA1 and VIC1 pricing through the late-afternoon ramp as interconnector constraints may again tighten.
Tasmania is the standout region over the past 24 hours for two reasons. First, TAS1 achieved 100% renewable penetration during the evening, with hydro output spanning roughly 665–1,398 MW across intervals and wind contributing up to 107 MW, while gas OCGT units remained offline — consistent with the state's normal hydro-dominant profile. Second, and more notably, a major binding network constraint T_BLINK_TV_NGZ registered an extraordinarily high shadow price of $7,308,000/MWh, indicating severe transmission stress within the Tasmanian network at the time. Despite that signal, spot prices remained broadly contained — briefly touching $104.31/MWh before settling near $88–96/MWh — suggesting the constraint did not directly set the regional reference price. Market participants with Tasmanian exposure should note the constraint remains flagged; any recurrence warrants close monitoring.
The WA Wholesale Electricity Market was quiet over the past 24 hours. WA1 averaged $81/MWh with a narrow intraday range, peaking at just $85/MWh — the tightest maximum of any region covered today. No significant dispatch events or constraints have been flagged for the period.
STPASA shows no LOR conditions forecast across the NEM in the next 48 hours — the system is adequately resourced through the weekend. Gas hub prices are firming