Market analysis of 18 June 2025
Victoria recorded a wholesale electricity price high of AUD 3,758.92/MWh at 17:25 on 18 June 2025 and a low of AUD 120.01/MWh at 00:05. The arithmetic average across its 288 five-minute observations was AUD 316.73/MWh.
Across the day, 65 observations were at or above AUD 300/MWh, a total of 5.4 hours. The spread between the highest and lowest prices was AUD 3,638.91/MWh.
The Five-Minute Price Curve
The first chart shows each five-minute price for Victoria through the day, with times in fixed UTC+10. Timing matters for any operator: a battery or flexible load gains from the gap between the cheapest and dearest intervals, while a generator’s result depends on when its energy was delivered.
How The Five Regions Compared
Daily average prices in the other regions were: South Australia AUD 312.00/MWh, New South Wales AUD 267.98/MWh, Queensland AUD 185.39/MWh, Tasmania AUD 168.35/MWh. The second chart compares the five regional averages for 18 June 2025.
What The Day Means For Operations
For a battery operator, the question is where charging and discharging belonged within this curve. For a generator or retailer, the same timestamps show which intervals carried the most value or cost. Reviewing the day interval by interval keeps these signals visible where a daily average would hide them.
This analysis uses Network Map’s regional observations dated 18 June 2025. Prices are in Australian dollars per megawatt-hour, times use fixed UTC+10, and daily averages give equal weight to each five-minute observation.
Explore The Data
Markets, Revenue Reconciliation, Battery Revenue Benchmarks.
