Tuesday 23 June 2026
Trading day 2026-06-23
South Australian prices surge as NEM daily average rises significantly
Regional price outcomes diverged significantly across the NEM, with South Australia averaging 300.1 dollars per megawatt hour compared to 83.8 dollars in Queensland. New South Wales and Victoria recorded averages of 125.4 and 146.8 dollars respectively, while Tasmania remained lower at 85.3 dollars per megawatt hour.
System demand peaked in the evening across all regions, led by New South Wales reaching 11,132 megawatts at 19:05. Total NEM energy consumption was supported by a generation mix where fossil fuels provided over 64 percent of total output.
Renewable generation reached an instantaneous peak of 59.6 percent at 12:15, though the daily share settled at 33.8 percent. Battery storage systems discharged 17,430 megawatt hours to the grid, contributing 2.5 percent of the total generation for the day.
FCAS costs were notable in Tasmania, where the Raise 6 Second service peaked at 20,290 dollars per megawatt hour. Total emissions for the trading day reached 390,153 tonnes of carbon dioxide, a 22.2 percent increase compared to the same day last week.
Today · Forward projections indicate a peak price of 319.04 dollars in Queensland at 19:30, while other regional peaks remain under 150 dollars.
Why it matters · The daily average of 143.4 dollars per megawatt hour extends a three-day upward trend and sits 38 percent above the seven-day mean. This price escalation occurred alongside a 22 percent rise in emissions and a reliance on battery discharge during evening demand peaks.
Prices
Trading day · 04:00 → 04:00 AEST · 30-min average
| Region | Avg | VWAP | Min | Max | Neg | Cap |
|---|---|---|---|---|---|---|
| NSW | $125 | $129 | $46 | $232 | 0 | 0 |
| QLD | $84 | $91 | -$1 | $183 | 2 | 0 |
| SA | $300 | $317 | $89 | $845 | 0 | 0 |
| VIC | $147 | $152 | $76 | $275 | 0 | 0 |
| TAS | $85 | $86 | $57 | $225 | 0 | 0 |
Min · Max are 5-minute dispatch extremes; the price chart plots 30-minute averages, so its peak reads lower.
Demand
FCAS
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $6,104 | 0 | $20 | 23 June, 16:05 |
| LOWERREG | $1,259 | 0 | $5 | 23 June, 15:35 |
| RAISE60SEC | $361 | 0 | $0 | 23 June, 08:30 |
| RAISE6SEC | $134 | 0 | $0 | 23 June, 09:15 |
| RAISE5MIN | $72 | 0 | $0 | 23 June, 08:30 |
| LOWER60SEC | $4 | 0 | $0 | 23 June, 04:25 |
| LOWER5MIN | $1 | 0 | $0 | 23 June, 04:30 |
| LOWER6SEC | $0 | 0 | $0 | 23 June, 04:25 |
| Total | $7,936 | |||
Cost = NSW RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| LOWER60SEC | $37,673 | 0 | $31 | 23 June, 15:50 |
| LOWER6SEC | $37,259 | 0 | $20 | 23 June, 13:50 |
| RAISEREG | $12,323 | 0 | $20 | 23 June, 16:05 |
| LOWER5MIN | $5,570 | 0 | $8 | 23 June, 15:20 |
| LOWERREG | $5,017 | 0 | $8 | 23 June, 15:20 |
| RAISE6SEC | $186 | 0 | $0 | 23 June, 07:50 |
| RAISE60SEC | $106 | 0 | $0 | 23 June, 07:35 |
| RAISE5MIN | $79 | 0 | $0 | 23 June, 07:05 |
| Total | $98,212 | |||
Cost = QLD RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $5,668 | 0 | $20 | 23 June, 16:05 |
| LOWERREG | $3,017 | 0 | $5 | 23 June, 15:35 |
| RAISE60SEC | $427 | 0 | $0 | 23 June, 08:30 |
| RAISE6SEC | $219 | 0 | $0 | 23 June, 09:15 |
| RAISE5MIN | $110 | 0 | $0 | 23 June, 08:30 |
| LOWER60SEC | $6 | 0 | $0 | 23 June, 04:25 |
| LOWER5MIN | $1 | 0 | $0 | 23 June, 04:30 |
| LOWER6SEC | $0 | 0 | $0 | 23 June, 04:25 |
| Total | $9,449 | |||
Cost = VIC RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $14,093 | 0 | $20 | 23 June, 16:05 |
| RAISE60SEC | $11,804 | 0 | $49 | 23 June, 19:35 |
| RAISE6SEC | $8,131 | 0 | $19 | 23 June, 17:35 |
| LOWERREG | $4,153 | 0 | $5 | 23 June, 15:35 |
| RAISE5MIN | $1,121 | 0 | $4 | 23 June, 17:25 |
| LOWER60SEC | $8 | 0 | $0 | 23 June, 04:25 |
| LOWER5MIN | $2 | 0 | $0 | 23 June, 04:30 |
| LOWER6SEC | $0 | 0 | $0 | 23 June, 04:25 |
| Total | $39,313 | |||
Cost = SA RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISE6SEC | $521,897 | 2 | $20,290 | 23 June, 14:10 |
| RAISEREG | $6,841 | 0 | $20 | 23 June, 16:45 |
| LOWERREG | $5,086 | 0 | $19 | 23 June, 21:05 |
| LOWER6SEC | $4,215 | 0 | $3 | 23 June, 04:15 |
| RAISE60SEC | $1,974 | 0 | $0 | 23 June, 08:30 |
| LOWER60SEC | $1,272 | 0 | $3 | 23 June, 04:55 |
| RAISE5MIN | $503 | 0 | $3 | 23 June, 04:05 |
| LOWER5MIN | $38 | 0 | $0 | 23 June, 22:25 |
| Total | $541,825 | |||
Cost = TAS RRP × cleared MW per 5-min interval.
Battery dispatch
Peak moment
Fleet discharged 994 MW at 18:30 as NSW spot hit $194/MWh.
Peak moment
Fleet discharged 1,256 MW at 07:00 as QLD spot hit $129/MWh.
Peak moment
Fleet discharged 964 MW at 08:00 as VIC spot hit $193/MWh.
Peak moment
Fleet discharged 331 MW at 18:30 as SA spot hit $513/MWh.
Peak moment
Fleet discharged 3,324 MW at 18:00 as TAS spot hit $88/MWh.
Fleet net dispatch · spot-price overlay · 30-min average
Regional dispatch ranking
| Region | Discharged | Net |
|---|---|---|
#1QLD | 6,198MWh | +880 |
#2NSW | 5,729MWh | +989 |
#3VIC | 3,937MWh | -367 |
#4SA | 1,565MWh | -456 |
Generation Mix
- Coal68.6% · 156.4 GWh
- Gas4.5% · 10.3 GWh
- Hydro6.3% · 14.3 GWh
- Wind2.3% · 5.2 GWh
- Solar (utility)5.9% · 13.5 GWh
- Solar (rooftop)9.0% · 20.5 GWh
- Battery2.5% · 5.7 GWh
- Other0.9% · 2.0 GWh
- Coal56.3% · 112.4 GWh
- Gas6.9% · 13.8 GWh
- Hydro3.1% · 6.2 GWh
- Wind6.3% · 12.5 GWh
- Solar (utility)11.2% · 22.4 GWh
- Solar (rooftop)12.4% · 24.7 GWh
- Battery3.1% · 6.2 GWh
- Other0.7% · 1.4 GWh
- Coal54.9% · 102.0 GWh
- Gas9.2% · 17.2 GWh
- Hydro11.6% · 21.6 GWh
- Wind15.8% · 29.3 GWh
- Solar (utility)1.7% · 3.3 GWh
- Solar (rooftop)4.6% · 8.6 GWh
- Battery2.1% · 3.9 GWh
- Gas69.7% · 28.3 GWh
- Wind6.5% · 2.6 GWh
- Solar (utility)4.9% · 2.0 GWh
- Solar (rooftop)15.2% · 6.2 GWh
- Battery3.9% · 1.6 GWh
- Gas0.5% · 0.2 GWh
- Hydro83.8% · 28.6 GWh
- Wind14.4% · 4.9 GWh
- Solar (rooftop)1.3% · 0.4 GWh
Renewables
- NSW 22.9%
- VIC 37.6%
- QLD 39.8%
- SA 25.5%
- TAS 104.2%
Interconnectors
| Region (proxy) | Net flow | Direction changes | Hours at limit |
|---|---|---|---|
| N-Q-MNSP1 | +30.9 GWh | 0 | — |
| NSW1-QLD1 | −35.3 GWh | 0 | — |
| VIC1-NSW1 | +19.4 GWh | 8 | — |
| V-SA | −14.6 GWh | 2 | — |
| T-V-MNSP1 | +2.8 GWh | 0 | — |
Per-region net of NETINTERCHANGE proxied to a representative interconnector. Full per-interconnector decomposition + hours-at-limit needs DINTERCONNECTOR parsing (follow-up).
Emissions
| NSW | 144.0k tCO₂ | 0.637 tCO₂/MWh |
| QLD | 104.0k tCO₂ | 0.524 tCO₂/MWh |
| SA | 14.6k tCO₂ | 0.358 tCO₂/MWh |
| VIC | 127.4k tCO₂ | 0.687 tCO₂/MWh |
| TAS | 121 tCO₂ | 0.004 tCO₂/MWh |