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Market analysis of 26 May 2025

Wind generators delivered 136.89 GWh on 26 May 2025 and solar generators delivered 21.90 GWh, a combined 158.79 GWh across Australia’s five eastern and southern market regions. In Network Map’s daily unit records for 1 May to 31 May 2025, that was the highest daily wind total of 31 dates and the highest combined wind and solar day.

Wind output averaged 69.05 GWh a day over the same dates, so 26 May ran 98.2% above the period mean. Hydro added 29.03 GWh, while black and brown coal units supplied 106.53 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 May to 31 May. Wind was the larger of the two on 26 May, at 6.25 times the solar total.

Wind And Solar Through May — 26 May 2025; 1 May to 31 May 2025 | Daily Generator Energy | GWh
Daily wind and solar energy, 1 May to 31 May 2025. Source: Network Map; GWh.

Where The Energy Came From

Victoria supplied the largest regional share of wind and solar energy, 60.65 GWh or 38.2% of the day’s total. South Australia followed with 37.22 GWh, and New South Wales contributed 31.34 GWh.

Wind And Solar By Region On 26 May — 26 May 2025; 26 May 2025 | Energy By Region | GWh
Wind and solar energy by region on 26 May 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 26 May 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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