South Australia had the highest average spot price, $125.73/MWh, and Victoria the lowest, $66.81/MWh.
Across the five regions the average was $84.82/MWh, up 7% on May 2026.
Prices went below zero for 139.8 hours in South Australia, 19% of the month, the most of any region.
The highest 5-minute price was $20,300.00/MWh in South Australia on 22 June at 07:20.
The lowest was -$614.77/MWh in Victoria on 12 June at 17:40.
It was the highest monthly average of the 10 months on record for Victoria.
Spot prices by region, June 2026
| Region | Average | Lowest | Highest | Negative hours | Share of month | Intervals over $300 | Over $5,000 |
|---|---|---|---|---|---|---|---|
| Queensland | $71.43 | -$68.684 June at 13:40 | $233.0124 June at 17:20 | 16.3 | 2% | 0 | 0 |
| New South Wales | $83.30 | -$5.013 June at 13:20 | $299.9924 June at 17:15 | 2.5 | 0% | 0 | 0 |
| Victoria | $66.81 | -$614.7712 June at 17:40 | $449.9622 June at 16:00 | 117.7 | 16% | 25 | 0 |
| South Australia | $125.73 | -$21.6812 June at 17:15 | $20,300.0022 June at 07:20 | 139.8 | 19% | 542 | 15 |
| Tasmania | $76.83 | -$15.0012 June at 23:20 | $20,300.0021 June at 18:00 | 3.2 | 0% | 7 | 1 |
FCAS, monthly average prices
| Market | QLD | NSW | VIC | SA | TAS |
|---|---|---|---|---|---|
| Raise regulation | $3.60 | $3.60 | $3.60 | $3.66 | $7.89 |
| Lower regulation | $1.49 | $1.37 | $1.37 | $1.38 | $2.52 |
| Raise 1 second | $0.02 | $0.02 | $0.02 | $0.08 | $0.01 |
| Raise 6 second | $0.04 | $0.05 | $0.05 | $0.28 | $11.49 |
| Raise 60 second | $0.03 | $0.05 | $0.05 | $0.75 | $2.97 |
| Raise 5 minute | $0.02 | $0.02 | $0.02 | $0.08 | $0.25 |
| Lower 1 second | $0.31 | $0.00 | $0.00 | $0.99 | $0.00 |
| Lower 6 second | $0.63 | $0.01 | $0.01 | $0.07 | $1.05 |
| Lower 60 second | $0.58 | $0.03 | $0.03 | $0.17 | $0.35 |
| Lower 5 minute | $0.13 | $0.01 | $0.01 | $0.02 | $0.12 |
Download the figures behind this report: spot prices and negative hours (CSV), FCAS averages (CSV). What this month would have meant for a battery: the BESS revenue calculator.
Data: Australian Energy Market Operator (AEMO), NEMWeb dispatch reports, used under AEMO's Copyright Permissions. Processed by ElectraGlobe. Prices are 5-minute dispatch prices in NEM time and may be revised. Informational only. Not for trading or financial decisions.