commodity demand tas — TAS1

Tasmania's spot price sits at $85.92/MWh with demand at 1,015.54 MW as of 06:30 AEST this morning. The price-demand relationship across today's history is pronounced: demand peaked at 1,238 MW during the morning period (around 18:30–19:00 AEST) when prices held at $88.18/MWh, while the midday trough — demand falling to a low of around 833 MW between 14:00 and 17:00 AEST — sustained elevated prices of $85–$88/MWh regardless, suggesting the pricing floor is not demand-driven but reflects a generator offer structure or interconnector constraint binding throughout the day. The notable exception was the midday period (23:00–00:00 UTC, approximately 09:00–10:00 AEST) when prices briefly dropped to the low $20s/MWh as demand fell into the 910–940 MW range, indicating a price-sensitive dispatch band exists in that demand corridor.

Demand is now rising again, having climbed from its 833 MW floor back through 1,015 MW and accelerating. The trajectory from the past 90 minutes — demand up roughly 190 MW in a near-linear climb from 19:45 AEST — is consistent with a standard Monday evening residential load ramp. Forecasts point to the next half-hour period (07:00 AEST) being priced at $93.75/MWh, indicating AEMO's predispatch engine anticipates continued demand growth pushing into a higher dispatch stack. The 07:30–08:30 AEST window carries forecast prices in the $93–$95/MWh range, aligning with demand likely returning toward the 1,100–1,200 MW range seen during this morning's peak.

The market notices relevant to demand conditions centre on network security, not generation adequacy. Multiple contingency reclassifications on the Gordon–Chapel St 220 kV lines (T-V-MNSP1 interconnector on the LHS of binding constraints) indicate Basslink transfer capacity has been subject to constraint binding throughout recent days. This directly limits import capability from Victoria and tightens Tasmania's supply stack, compressing the price floor and explaining the persistently elevated $85–$88/MWh pricing even when demand is moderate. With the interconnector constrained, Tasmania's hydro fleet (currently 540.53 MW) and wind (154.56 MW) are carrying the load with no gas OCGT contribution, leaving limited headroom for unexpected demand uplift without price escalation.

Traders should watch the 07:00–09:30 AEST window closely. Forecast prices step up to $93.75–$96.70/MWh across those intervals, with demand forecast to track back toward the 1,100–1,200 MW range. If the Gordon–Chapel St constraint set remains active and interconnector imports stay curtailed, any demand overshoot above 1,200 MW risks pushing prices into the $95–$100/MWh band. The LOR1 notice for SA on 14 April (0130–0200 AEST) is not directly a Tasmanian risk, but any tightening in the broader southern NEM can affect Basslink flows and TAS1 pricing in that window.