commodity demand sa — SA1

South Australia sits at 1,332 MW and $45.10/MWh at 07:00 AEST on 7 April 2026, with the price trajectory over the past hour pointing firmly upward — the region tracked between $32–$42/MWh through 06:00–06:30 AEST before climbing to the current level as demand rises into the morning. The demand-price relationship across today's history is stark: the overnight trough bottomed near 350 MW between 13:30–14:00 AEST with prices persistently negative (as low as -$41.54/MWh), while the morning ramp to 1,625 MW around 18:00 AEST drove prices above $80/MWh, peaking at $82.51/MWh. That compression — roughly 1,275 MW of demand swing translating into a $120+/MWh price range — underlines just how price-sensitive SA's supply stack is at current generation levels. Wind is providing 253.75 MW and gas CCGT 59.46 MW against 1,332 MW of demand, with solar at zero in the pre-dawn window, so the supply margin is thinning as demand climbs.

The forecast demand profile points to material price escalation through the business-day peak. AEMO forecasts for the 07:00–10:30 AEST (21:00–00:30 UTC) window show a consensus range of $59–$166/MWh, with a strong cluster of bids around $138–$160/MWh for the 08:00–10:30 AEST half-hours. This is consistent with the morning ramp seen in today's price history, where demand crossing 1,600 MW triggered sustained pricing above $55/MWh. At current trajectory, demand is likely to approach or exceed the 1,600–1,700 MW range seen in today's 17:00–19:00 AEST window, where prices held $55–$82/MWh — and forward forecasts suggest the balance of risk is to the upside of that range.

The demand-side picture carries a significant non-market overlay today. AEMO's active market notice (Notice 140945, issued 14:53 AEST 6 April) identifies a foreseeable voltage intervention in SA from 21:30 AEST today, with a market response deadline of 19:00 AEST. A companion LOR1 notice (140941) flags a forecast reserve shortfall of 113 MW — capacity reserve requirement 473 MW against a minimum available of 360 MW — for the 04:30–09:00 AEST window. Critically, the cancellation notice (140946) only withdrew the 06/04 foreseeable intervention flag; the 07/04 voltage intervention risk from Notice 140945 remains active. This reserve and voltage pressure is a direct demand-side risk factor: any demand overshoot against the forecast, or under-delivery from the wind fleet, compresses the already-thin reserve margin and can trigger directed generation, which the notices confirm has been the pattern in SA across recent days.

Traders and load managers should treat the 07:30–10:30 AEST window as the highest-risk pricing period today, with forward forecasts anchoring in the $130–$167/MWh band for 08:00–10:30 AEST. The LOR1 reserve gap and active voltage