Commodity Demand — VIC1: Friday 14 August 2026
Victoria's spot price sits at $113.12/MWh at 16:25 AEST, with demand at 5,517 MW and climbing after an evening trough — a pattern consistent with the winter demand shape rather than any supply disruption. Demand troughed around 4,930 MW at 18:00 AEST and has been rebuilding steadily through the early evening ramp, tracking the classic post-dinner heating load pick-up. Today's price action shows demand sensitivity is sharp but not linear: the morning peak saw demand climb from 5,630 MW at 05:00 to a daily high of 7,467 MW at 08:20, and price responded aggressively, spiking from $54/MWh to $176.85/MWh over the same window — a more than threefold price increase on roughly 33% demand growth. This confirms VIC1's supply stack is tight at the margin during ramp periods, with brown coal (4,639 MW) providing the baseload floor and gas OCGT (143 MW) and battery output (242 MW) picking up the marginal load as demand climbs.
The overnight-into-morning trajectory has been the dominant price driver today. Demand bottomed near 5,430 MW around 04:10 AEST, coinciding with the day's lowest prices ($17-43/MWh), before the classic morning ramp pushed both demand and price sharply higher into the 08:00-09:00 AEST peak window, where prices held above $130/MWh for over an hour. Since that peak, demand has eased back through the middle of the day, bottoming again near 4,930-5,050 MW in the early evening, with prices correspondingly softening to the $86-95/MWh range through the 17:00-18:30 AEST period before the current evening uptick.
Forecast data points to a much softer overnight profile than usual, with prices tipped to fall from current levels through the evening peak (~$115/MWh at 21:30 AEST) before a sharp drop into the early hours — forecasts show sub-$20/MWh pricing from 01:00 to 05:00 AEST tomorrow, reflecting low overnight demand and stable baseload coverage. This is consistent with today's identified low-price load-shifting windows (13.08-19.18 $/MWh) between 01:00 and 06:30 AEST tomorrow, offering material savings (~$100/MWh vs peak) for any dispatchable or flexible load. Tomorrow's forecast also shows prices rebuilding into a morning peak around $90-100/MWh between 07:30 and 10:00 AEST, mirroring today's ramp pattern but at somewhat lower absolute levels.
On demand-side factors, no load-shedding, demand response activation, or reliability notices are currently in effect for VIC1. The active Murraylink control-unavailability notice (SA region interconnector) doesn't directly constrain Victorian demand-side flexibility today, though it's worth monitoring given VIC1-SA transfer capability. Cold overnight conditions (9.3°C, heating demand index 8.7) are supporting the elevated evening/morning demand profile, consistent with typical mid-August load patterns, while renewable penetration has been low today (3.7-7.7% over the past few hours) given minimal wind and zero solar output, leaving thermal generation and battery dispatch to cover the current demand ramp.