Commodity Demand — NSW1: Thursday 18 June 2026

NSW spot sits at **$64.89/MWh** at 06:25 AEST with demand at 7,924 MW and climbing. The demand trajectory across the past hour tells the key story: load troughed near 6,600 MW in the 03:30–04:30 AEST window when prices softened to the low $40s, then began a steady evening ramp that is now accelerating. The 1,300 MW climb from that trough to present has pushed prices from the low $40s back through the mid-$60s, a clear demand-price correlation playing out in real time. Current conditions sit well below today's morning peak — demand reached 10,055 MW at 07:55 AEST and prices touched the low $50s to mid-$60s during that window, with the $42–$43/MWh intervals around 07:35–07:40 AEST suggesting some supply-side softness absorbed that peak before prices firmed again through the 09:00 AEST hour.

The evening demand ramp is the primary price driver for the remainder of today's trading. The forecast sequence points to a **$79/MWh** print at 09:30 AEST (19:30 AEST local), rising through the $73–$79/MWh band across the 06:00–09:30 AEST (16:00–19:30 AEST) window as heating demand builds into the evening. Tonight is a 17°C overcast day with 96% cloud cover and negligible solar potential, meaning there is no late-afternoon solar contribution to soften the ramp — the full demand increase lands on dispatchable capacity. Wind is generating a substantial 1,916 MW at present, which is providing meaningful volume into the evening, but forecast wind potential drops sharply from tonight's average 16.4 km/h across the week ahead, which tightens the supply stack if demand holds at current winter levels.

The overnight and early-morning window from 10:00–11:30 AEST (00:00–01:30 AEST) is forecast to ease back to $38–$43/MWh as demand falls away, before prices lift again into the 06:00 AEST (16:00 AEST) business-hour ramp with forecasts in the $56–$79/MWh range through Saturday morning. Demand-side managers with flexible load should note the **$37.89/MWh** trough forecast at 14:00 AEST (04:00 AEST) — the cheapest window across the entire 24-hour forecast horizon. The current grid stress score of 60.4 reflects the transitional position between the daytime lull and the evening peak; any demand upside driven by colder-than-expected temperatures overnight would compress available headroom and risk pushing prices toward the upper end of the $79/MWh forecast ceiling already visible in tonight's dispatch outlook.