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Market analysis of 8 December 2025

Wind generators delivered 69.83 GWh on 8 December 2025 and solar generators delivered 60.77 GWh, a combined 130.61 GWh across Australia’s five eastern and southern market regions. In Network Map’s daily unit records for 1 December to 31 December 2025, that was the 14th-highest daily wind total of 31 dates and the 8th-highest combined wind and solar day.

Wind output averaged 66.07 GWh a day over the same dates, so 8 December ran 5.7% above the period mean. Hydro added 22.64 GWh, while black and brown coal units supplied 101.01 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 December to 31 December. Wind was the larger of the two on 8 December, at 1.15 times the solar total.

Wind And Solar Through December — 8 December 2025; 1 December to 31 December 2025 | Daily Generator Energy | GWh
Daily wind and solar energy, 1 December to 31 December 2025. Source: Network Map; GWh.

Where The Energy Came From

New South Wales supplied the largest regional share of wind and solar energy, 37.63 GWh or 28.8% of the day’s total. Victoria followed with 37.61 GWh, and Queensland contributed 34.37 GWh.

Wind And Solar By Region On 8 December — 8 December 2025; 8 December 2025 | Energy By Region | GWh
Wind and solar energy by region on 8 December 2025. Source: Network Map; 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 8 December 2025, grouped by source fuel classification and region. Daily totals are summed across all classified units.

Explore The Data

Markets, Revenue Reconciliation, Curtailment By Cause.

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