Commodity Demand — NSW1: Tuesday 30 June 2026

NSW spot sits at $97.67/MWh with demand at 8,446 MW as of 06:25 AEST, well into the evening demand recovery phase after today's trough. The data tells a clear demand-price story: NSW bottomed around 6,906 MW between 17:00–17:45 AEST with prices in the low-to-mid $80s/MWh, and has since climbed steadily. The price response to rising demand is already visible — the $97.67/MWh current price represents a 15–20% premium over the sub-$85/MWh floor seen during the afternoon minimum. Today's earlier morning peak was the most acute episode: demand pushed above 11,000 MW between 17:40–18:55 AEST (07:40–08:55 UTC), driving prices to the $175/MWh dispatch cap floor for extended runs across that window. That 11,056 MW reading at 18:55 AEST marks the apparent daily peak.

Price sensitivity to demand is non-linear and sharp above 10,000 MW. Below that threshold, prices traded largely in the $107–$140/MWh band during overnight and early morning periods (9,000–10,000 MW demand). Once demand crossed 10,250 MW from around 16:40 AEST onward into the morning peak, prices locked onto $174.89–$175/MWh repeatedly, indicating the marginal stack steepens significantly above that level. The midday solar-supported demand trough — demand fell below 7,500 MW in the 15:00–16:30 AEST window — compressed prices to $82.96–$89/MWh, a $85–$90/MWh spread relative to the morning peak. At 13°C with 60% cloud cover and a heating demand index of 4.8, this is a classic winter evening load build profile; demand is climbing as residential heating loads switch on post-sunset with no solar contribution.

The forward forecast indicates demand continues rising from current levels through the balance of the evening. Forecast prices step up from $97.67/MWh now to $121.09–$122.87/MWh in the 21:30–22:30 AEST window, then ease to the $106–$111/MWh range approaching midnight, before a notable softening into early morning — the 12:30–13:30 AEST UTC window (02:30–03:30 AEST) shows forecast prices of $28.65–$29.86/MWh, the cheapest window of the cycle. Today's maximum forecast of 20.9°C and 87% average cloud cover limits solar output materially, keeping daytime demand support elevated relative to a clear winter day. Wind potential is moderate at 5/10, consistent with the 834 MW currently dispatched from wind.

The Greenbank 275 kV SVC outage (constraint set Q-GB_VC, invoked 01:00 AEST) continues to bind on the NSW1-QLD1 and N-Q-MNSP1 interconnectors — traders should monitor whether this limits northward export capacity during tonight's demand build, which could tighten NSW supply margins if the state needs to draw on Queensland. The generation mix at current dispatch has black coal at 5,355 MW, hydro at 731 MW, wind at 834 MW, battery at 164 MW, solar at