regional nsw — NSW1
NSW1 spot is $56.98/MWh at 16:30 AEST, sitting well below the elevated levels seen during yesterday's evening peak when prices repeatedly touched $95–$100/MWh across the 06:35–07:15 UTC window (17:35–18:15 AEST). The 24-hour price trajectory tells a clear story: overnight prices compressed into the $75–$85/MWh band before collapsing through the solar window, hitting negative prints of -$2.50/MWh around 23:05–23:25 UTC (09:05–09:25 AEST) as midday rooftop and utility solar saturated low weekend demand. Prices have since recovered to the mid-$50s as demand lifts to 6,756 MW into the Saturday afternoon.
Generation is heavily black-coal dominated. The current fuel mix shows black coal at 4,063 MW — approximately 60% of served load — with wind contributing just 236 MW and solar 145 MW. Hydro, gas CCGT, and gas OCGT are all at zero output. Total renewable penetration is 11.95%, consistent with the carbon history trend across today where renewables have tracked in the 11–13% band during daylight hours before falling to sub-4% overnight. Carbon intensity is 0.7749 tCO2/MWh, down modestly from the overnight high of 0.8485 tCO2/MWh but still reflecting the coal-heavy dispatch stack. With no gas or hydro online and wind resource weak (site wind speed 4.3 km/h, wind potential scored at 0.1), there is no flexible low-carbon dispatchable capacity currently supplementing the coal baseload.
Predispatch forecasts point to a price step-down through tonight. The load window data shows forecast prices of $50.64/MWh around 07:00 AEST Saturday, dropping further to the $37.89–$37.95/MWh range from approximately 11:00 AEST through to 12:30 AEST — a savings opportunity of ~$19/MWh against current spot. This aligns with the weekend demand trough and continued solar contribution suppressing marginal costs. Demand response and flexible load operators should note the 11:00–13:00 AEST window as the optimal scheduling period. Grid stress is scored at 64/100, reflecting the lack of generation diversity rather than a supply shortfall per se — the market is adequately supplied but structurally exposed to any unplanned coal outage with zero gas or hydro backstop currently committed.
No active market notices are in place for NSW1. The low wind and 68% cloud cover will limit renewable output recovery through this evening, and the absence of gas capacity means any demand surprise or thermal trip would be resolved entirely by coal ramping or interstate flows. Traders should watch the QLD interconnector given the coal-heavy dispatch profile on both sides of the border.