Commodity Demand — VIC1 — Monday 4 May 2026

Victoria's spot price sits at $70.15/MWh with demand at 5,108 MW as of 06:35 AEST, deep into the evening ramp that began around 05:10 AEST (19:10 UTC) when prices broke above $57/MWh from sub-$10/MWh levels during the afternoon trough. The price-demand relationship today has been sharp: demand fell to a session low near 3,777 MW around 11:40 AEST, when prices sat at negative levels (as low as -$12.10/MWh), then climbed steadily through the afternoon to a daytime peak above 6,400 MW around 18:10–18:40 AEST, where prices topped $28.69/MWh during the morning commercial peak. The current evening demand trajectory is tracking upward from roughly 4,230 MW at 02:00 AEST through to 5,108 MW now, with prices accelerating materially once demand cleared the 4,800 MW threshold — a $77.51/MWh print at 06:00 AEST (20:00 UTC) confirms the sensitivity at that level.

The forward curve is pricing continued tightness. AEMO forecasts for the 07:00 AEST (21:00 UTC) half-hour are centred around $80–$103/MWh across successive runs, and the 07:30 AEST interval is consistently forecast in the $91–$113/MWh range, reflecting expectations that demand will continue rising through the evening peak. The 08:30 AEST (22:30 UTC) interval is forecast to ease back to the $57–$79/MWh range as demand rolls off the peak, with further moderation to the mid-$40s/MWh by 09:00–09:30 AEST. Solar output is zero and wind is generating 900 MW, with carbon intensity at 0.734 tCO2/MWh — down from the overnight low of 0.473 tCO2/MWh as the renewable share falls from above 57% overnight to 37.3% now under the evening demand profile.

The key demand-side variable for tonight's pricing is the absence of rooftop solar in this autumn evening window combined with 87% cloud cover and a heating demand signal (12.9°C, 5.1 kW heating index). Both factors sustain residential load through the 07:00–08:00 AEST period, reinforcing the forecast spike. The Directlink No. 3 leg outage (constraint set N-MBTE_1 invoked at 12:30 AEST) limits NSW–QLD transfer capacity but does not directly constrain VIC1 interconnector headroom; however, any tightening in NSW flows can reduce the pool of surplus energy available for southward arbitrage into Victoria, reducing a potential price dampener at the margin.

Traders positioning for the 07:30 AEST settlement window should note the wide forecast range ($91–$113/MWh) across dispatch runs — a spread that indicates material uncertainty in how quickly the evening peak firms, likely driven by the sensitivity of demand to heating load at this temperature. Demand-side participants with flexible heating loads have the clearest incentive to curtail in the 07:00–08:30 AEST window before the forecast curve drops back into the $40–$55/MWh range through