Regional Outlook — NSW1: Saturday 20 June 2026
The NSW spot price sits at $91.05/MWh as of 06:25 AEST, with total demand at 7,082 MW — a relatively modest Sunday morning load. Looking across the past 24 hours, prices tracked a clear winter demand curve: a pre-dawn trough in the low-to-mid $40s/MWh around 03:00–05:00 AEST, a sharp morning ramp to a session high of $101.72/MWh at 17:30 AEST, sustained pressure in the upper $80s to low $90s through the business day, then an evening softening before the current period's modest rebound. The 24-hour average sits in the mid-$80s/MWh, placing the current price slightly above trend as demand lifts off its overnight floor.
The generation mix at 06:00 AEST is dominated by black coal at 5,497 MW (approximately 83% of in-region output), with hydro contributing 791 MW (12%), wind 286 MW (4.3%), gas OCGT 41 MW (0.6%), and solar a minimal 50 MW (0.7%) given the pre-dawn timing. Battery storage is effectively idle at 0.15 MW. Renewable penetration sits at 16.91% — well below the overnight peak of 43%+ recorded around 02:00–05:00 AEST when demand was lower and wind output sustained. Carbon intensity currently measures 0.7298 tCO2/MWh, up materially from the 0.497 tCO2/MWh low recorded around 02:00 AEST as coal generation has increased to cover the morning demand build.
The predispatch curve signals a significant price escalation through today's morning peak. Prices are forecast to hold near $88–98/MWh through 07:00–08:00 AEST, then spike sharply — the forecast reaches $141.25/MWh at 17:00 AEST, $174.78/MWh at 18:30 AEST, and peaks at $191.40/MWh at 19:30 AEST, before easing back toward $111/MWh through the afternoon. This extended elevated band from 16:00–04:00 AEST (forecast $111–175/MWh) reflects typical winter morning peak demand amplified by today being the winter solstice — the shortest day of the year — with maximum heating load and minimal solar contribution. Flexible load operators should note the optimal shifting windows sit between 11:30–14:30 AEST (12:30–14:30 UTC), where forecast prices are in the $68–73/MWh range, saving upwards of $120/MWh against the peak.
Two active market notices are directly relevant to NSW. An inter-regional transfer notice (MN 144287) remains active, flagging that Directlink (N-Q-MNSP1 interconnector) controls are unavailable until further notice, with constraint set I-CTRL_ISSUE_TE invoked from 18:40 AEST. This limits AEMO's ability to manage NSW–Queensland flow on that link and adds interconnector constraint risk to the morning peak. A separate transmission constraint notice (MN 144283) is active regarding a short-notice rating change on the X3 Balranald–Buronga 220 kV line affecting V-SA