Load Advisor: Sunday 30 August 2026

NEM-wide overnight prices sit deep in negative territory right now, and the best load-shifting window for all five mainland/island regions falls between 11:00 and 16:30 AEST (01:00-06:30 UTC), where predispatch forecasts show sub-zero to single-digit $/MWh pricing across NSW1, VIC1, SA1, QLD1 and TAS1. SA1 offers the strongest opportunity, with forecast prices as low as -$3.19/MWh between 14:00-15:00 AEST and savings of up to $158/MWh versus this morning's evening peak of $69-101/MWh recorded across regions. NSW1 and VIC1 both bottom out near -$3.7 to -$4.00/MWh in the 13:00-14:00 AEST band, while TAS1 troughs at -$3.69/MWh around 14:00 AEST.

Flexible load should be scheduled into two priority blocks. The primary window runs 11:00-16:00 AEST, capturing the deepest negative pricing as low overnight demand combines with minimal rooftop solar offset (cloud cover is heavy across VIC1 at 95% and TAS1 at 91%, capping solar potential, but demand remains soft enough to hold prices negative regardless). The secondary consideration is QLD1, where negative pricing extends slightly later, from 11:00 through 15:30 AEST, with a trough of -$3.76/MWh around 13:00 AEST — shift QLD1-based flexible load slightly later in this window relative to the southern regions.

All regions should avoid scheduling flexible load in the 17:30-20:00 AEST evening peak, where forecast prices climb sharply: NSW1 reaches $142.90/MWh by 18:00 AEST, VIC1 peaks at $146.30/MWh around 20:00 AEST, and SA1 tops out at $155.21/MWh in the same window. This aligns with the evening demand ramp as heating load builds (current heating demand readings of 6-11 across regions) and solar generation drops to zero. Morning peak periods from 07:00-09:30 AEST also carry elevated pricing (VIC1 forecast at $144.48/MWh by 18:00 UTC target, QLD1 near $116/MWh) and should be avoided for discretionary load. Batteries and shiftable industrial processes are best charged in the midday trough and discharged into both the morning and evening peaks to maximise arbitrage value across all five regions today.