Commodity Demand — TAS1: Saturday 5 September 2026
Tasmania's spot price sits at $52.86/MWh at 06:30 AEST with demand at 996 MW, capping off a sharp overnight-to-morning price recovery. Demand troughed near 906-945 MW through mid-afternoon yesterday before climbing steadily into the evening peak, and price has tracked that trajectory closely — the $52.86/MWh print is up from sub-$30/MWh levels through most of the afternoon and follows a run of $30-58/MWh prints between 18:00 and 20:30 as demand rebuilt from ~900 MW to just under 1,000 MW. This region shows tight demand-price coupling once the market moves off floor pricing: the negative and near-zero prices overnight (down to -$15.01/MWh) coincided with demand above 1,100-1,170 MW, reflecting hydro and wind output exceeding operational requirements rather than any shortage signal — a reminder that in Tasmania, low prices at high demand simply indicate ample low-cost hydro generation clearing the market.
The forward price curve points to a substantial escalation through the day. AEMO's forecast has price holding near $46/MWh at 21:00 AEST, dropping into single digits and negative territory through the overnight trough (00:00-05:00, consistent with the low-demand hydro-surplus pattern seen this morning), then spiking hard from 07:00 (forecast $80/MWh) through a midday peak of $101.77/MWh at 12:00 AEST. Prices are forecast to stay elevated ($85-97/MWh) across the late morning into early afternoon before easing to $58-70/MWh through the evening. This shape reflects typical Tasmanian demand build from early morning through midday, combined with cooler forecast temperatures (8.5-17.6°C range) lifting heating load, against a backdrop of thin wind potential (0.4) and modest solar (12.9%) — reducing the renewable buffer that suppressed prices overnight.
Current generation mix is hydro-dominant at 553.68 MW, with wind contributing just 74.42 MW and gas OCGT at 123.72 MW filling the gap, consistent with the low wind potential in today's outlook. Renewable penetration sits at 83.54% and carbon intensity at 0.107 tCO2/MWh, both likely to soften as gas peaking capacity is called on to meet the forecast midday price spike. No demand-side notices or directions are currently active for TAS1 — the only regional items are historical lightning-related contingency reclassifications on the Gordon-Chapel St, Farrell-Reece, Norwood-Scottsdale, and Tungatinah-Waddamana lines, all since cancelled, so today's price trajectory is being driven by underlying demand and weather rather than network constraints. Traders should note the identified low-price windows in the early hours (00:30-05:30 AEST, averaging -$3 to -$7/MWh) offer the clearest arbitrage opportunity before the midday spike materialises.