Market analysis of 12 June 2025
Wind generators delivered 26.06 GWh on 12 June 2025 and solar generators delivered 27.04 GWh, a combined 53.11 GWh across Australia’s five eastern and southern market regions. In Network Map’s daily unit records for 1 June to 30 June 2025, that was the 29th-highest daily wind total of 30 dates and the 30th-highest combined wind and solar day.
Wind output averaged 76.41 GWh a day over the same dates, so 12 June ran 65.9% below the period mean. Hydro added 70.77 GWh, while black and brown coal units supplied 118.02 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 June to 30 June. Solar was the larger of the two on 12 June, at 1.04 times the wind total.

Where The Energy Came From
South Australia supplied the largest regional share of wind and solar energy, 19.33 GWh or 36.4% of the day’s total. Queensland followed with 18.45 GWh, and New South Wales contributed 10.58 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 12 June 2025, grouped by source fuel classification and region. Daily totals are summed across all classified units.


