Market analysis of 19 August 2025
Wind generators delivered 65.01 GWh on 19 August 2025 and solar generators delivered 38.82 GWh, a combined 103.83 GWh across Australia’s five eastern and southern market regions. In Network Map’s daily unit records for 1 August to 31 August 2025, that was the 21st-highest daily wind total of 31 dates and the 19th-highest combined wind and solar day.
Wind output averaged 81.99 GWh a day over the same dates, so 19 August ran 20.7% below the period mean. Hydro added 43.68 GWh, while black and brown coal units supplied 89.99 GWh.
The Daily Pattern Through The Month
The first chart places the event day in its monthly context. It shows daily wind and solar energy for each date from 1 August to 31 August. Wind was the larger of the two on 19 August, at 1.67 times the solar total.
Where The Energy Came From
New South Wales supplied the largest regional share of wind and solar energy, 40.89 GWh or 39.4% of the day’s total. Queensland followed with 29.88 GWh, and South Australia contributed 17.78 GWh.
Reading The Day For Asset Performance
A high-output day is a useful benchmark for comparing a single wind or solar unit with its fuel group and its region. The next step is to match each unit’s interval output with the prices that applied when the energy was delivered, which turns the volume result into a revenue view.
Figures use positive energy from Network Map’s daily unit records for 19 August 2025, grouped by source fuel classification and region. Daily totals are summed across all classified units.
