Saturday 17 October 2026
Trading day 2026-10-17
SA records 21.5 negative hours and averages -$17.9/MWh
NSW averaged $67.3/MWh and QLD averaged $58.8/MWh, with zero negative hours in both regions. SA averaged -$17.9/MWh with 21.5 negative hours, while VIC and TAS recorded 20.3 and 19.7 negative hours respectively. No region recorded cap intervals.
NSW recorded the highest demand peak of 7836 MW at 18:40. Coal provided 44.1 per cent of generation, followed by wind at 20.6 per cent and rooftop solar at 18.8 per cent. Batteries discharged 15,021 MWh with a net position of -4962 MWh.
Total FCAS costs were low, with regulation raise the highest at $25,235. Emissions totalled 255,122 tonnes of carbon dioxide, 4.7 per cent below the same weekday last week.
AEMO issued a forecast LOR2 for SA on 20 October at 09:24, and published an update at 17:24. AEMO cancelled this forecast LOR2 at 23:58.
Today · Pre-dispatch forecasts show prices peaking at $137.67/MWh in NSW and $127.93/MWh in QLD at 03:30. SA, VIC and TAS are forecast to peak near $90/MWh at 19:30.
In context · The NEM average price of $27.6/MWh was below the seven-day average of $80.4/MWh, ranking lowest for the week. SA's average of -$17.9/MWh was below its seven-day average of $25.8/MWh, ranking sixth out of seven days.
Prices
Trading day · 04:00 → 04:00 AEST · 30-min average
| Region | Avg | VWAP | Min | Max | Neg | Cap |
|---|---|---|---|---|---|---|
| NSW | $67 | $70 | $1 | $107 | 0 | 0 |
| QLD | $59 | $61 | $0 | $93 | 0 | 0 |
| SA | -$18 | $13 | -$306 | $80 | 258 | 0 |
| VIC | $1 | $9 | -$68 | $85 | 244 | 0 |
| TAS | $4 | $7 | -$72 | $88 | 236 | 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 | $2,952 | 0 | $12 | 17 Oct, 08:10 |
| LOWERREG | $572 | 0 | $7 | 17 Oct, 13:50 |
| LOWER60SEC | $120 | 0 | $0 | 17 Oct, 14:05 |
| RAISE60SEC | $72 | 0 | $0 | 18 Oct, 01:00 |
| RAISE6SEC | $69 | 0 | $0 | 18 Oct, 01:00 |
| LOWER5MIN | $43 | 0 | $0 | 17 Oct, 12:55 |
| LOWER6SEC | $43 | 0 | $0 | 17 Oct, 14:05 |
| RAISE5MIN | $20 | 0 | $0 | 17 Oct, 05:05 |
| Total | $3,890 | |||
Cost = NSW RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| LOWERREG | $5,633 | 0 | $7 | 17 Oct, 13:50 |
| RAISEREG | $4,744 | 0 | $12 | 17 Oct, 08:10 |
| LOWER60SEC | $266 | 0 | $0 | 17 Oct, 14:05 |
| RAISE60SEC | $75 | 0 | $0 | 18 Oct, 01:00 |
| RAISE6SEC | $74 | 0 | $0 | 18 Oct, 01:00 |
| LOWER6SEC | $62 | 0 | $0 | 17 Oct, 14:05 |
| LOWER5MIN | $58 | 0 | $0 | 17 Oct, 12:55 |
| RAISE5MIN | $21 | 0 | $0 | 17 Oct, 05:05 |
| Total | $10,933 | |||
Cost = QLD RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $7,827 | 0 | $12 | 17 Oct, 08:10 |
| LOWERREG | $2,919 | 0 | $7 | 17 Oct, 13:50 |
| LOWER60SEC | $199 | 0 | $0 | 17 Oct, 14:05 |
| RAISE60SEC | $106 | 0 | $0 | 18 Oct, 01:00 |
| RAISE6SEC | $81 | 0 | $0 | 18 Oct, 01:00 |
| LOWER6SEC | $59 | 0 | $0 | 17 Oct, 14:05 |
| LOWER5MIN | $50 | 0 | $0 | 17 Oct, 12:55 |
| RAISE5MIN | $47 | 0 | $0 | 17 Oct, 05:05 |
| Total | $11,288 | |||
Cost = VIC RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| LOWERREG | $3,366 | 0 | $7 | 17 Oct, 13:50 |
| RAISEREG | $1,405 | 0 | $12 | 17 Oct, 08:10 |
| LOWER60SEC | $211 | 0 | $0 | 17 Oct, 14:05 |
| RAISE6SEC | $101 | 0 | $0 | 18 Oct, 01:00 |
| RAISE60SEC | $101 | 0 | $0 | 18 Oct, 01:00 |
| LOWER6SEC | $77 | 0 | $0 | 17 Oct, 14:05 |
| LOWER5MIN | $57 | 0 | $0 | 17 Oct, 12:55 |
| RAISE5MIN | $31 | 0 | $0 | 17 Oct, 05:05 |
| Total | $5,348 | |||
Cost = SA RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $8,307 | 0 | $5 | 17 Oct, 05:20 |
| LOWERREG | $6,476 | 0 | $60 | 17 Oct, 06:10 |
| RAISE6SEC | $943 | 0 | $0 | 17 Oct, 05:05 |
| RAISE60SEC | $943 | 0 | $0 | 17 Oct, 05:05 |
| RAISE5MIN | $10 | 0 | $0 | 17 Oct, 07:30 |
| LOWER60SEC | $0 | 0 | $0 | 17 Oct, 14:05 |
| LOWER6SEC | $0 | 0 | $0 | 17 Oct, 14:05 |
| LOWER5MIN | $0 | 0 | $0 | 17 Oct, 12:55 |
| Total | $16,679 | |||
Cost = TAS RRP × cleared MW per 5-min interval.
Battery dispatch
Peak moment
Fleet discharged 887 MW at 21:00 as NSW spot hit $80/MWh.
Peak moment
Fleet discharged 575 MW at 19:30 as QLD spot hit $82/MWh.
Peak moment
Fleet discharged 1,074 MW at 20:00 as VIC spot hit $62/MWh.
Peak moment
Fleet discharged 485 MW at 20:00 as SA spot hit $71/MWh.
Peak moment
Fleet discharged 2,943 MW at 20:00 as TAS spot hit $67/MWh.
Fleet net dispatch · spot-price overlay · 30-min average
Regional dispatch ranking
| Region | Discharged | Net |
|---|---|---|
#1NSW | 5,689MWh | -2,065 |
#2VIC | 4,384MWh | -1,282 |
#3QLD | 2,795MWh | -1,549 |
#4SA | 2,154MWh | -65 |
Generation Mix
- Coal38.7% · 72.7 GWh
- Gas0.6% · 1.1 GWh
- Hydro4.1% · 7.7 GWh
- Wind18.9% · 35.4 GWh
- Solar (utility)14.5% · 27.3 GWh
- Solar (rooftop)20.1% · 37.8 GWh
- Battery3.0% · 5.7 GWh
- Coal54.8% · 103.4 GWh
- Gas0.5% · 0.9 GWh
- Hydro3.5% · 6.7 GWh
- Wind18.4% · 34.7 GWh
- Solar (utility)7.1% · 13.4 GWh
- Solar (rooftop)14.2% · 26.9 GWh
- Battery1.5% · 2.8 GWh
- Coal52.2% · 83.9 GWh
- Hydro0.9% · 1.5 GWh
- Wind19.4% · 31.1 GWh
- Solar (utility)5.8% · 9.3 GWh
- Solar (rooftop)18.9% · 30.4 GWh
- Battery2.7% · 4.4 GWh
- Gas7.5% · 2.6 GWh
- Wind45.6% · 15.7 GWh
- Solar (utility)1.1% · 0.4 GWh
- Solar (rooftop)39.6% · 13.6 GWh
- Battery6.3% · 2.2 GWh
- Hydro61.7% · 10.8 GWh
- Wind26.0% · 4.5 GWh
- Solar (rooftop)12.4% · 2.2 GWh
Renewables
- NSW 55.3%
- VIC 55.2%
- QLD 49.1%
- SA 81.9%
- TAS 63.0%
Interconnectors
| Region (proxy) | Net flow | Direction changes | Hours at limit |
|---|---|---|---|
| N-Q-MNSP1 | +26.7 GWh | 10 | — |
| NSW1-QLD1 | −37.3 GWh | 22 | — |
| VIC1-NSW1 | +39.5 GWh | 0 | — |
| V-SA | −4.7 GWh | 11 | — |
| T-V-MNSP1 | −20.4 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 | 63.7k tCO₂ | 0.333 tCO₂/MWh |
| QLD | 90.9k tCO₂ | 0.481 tCO₂/MWh |
| SA | 1.3k tCO₂ | 0.037 tCO₂/MWh |
| VIC | 99.1k tCO₂ | 0.612 tCO₂/MWh |
| TAS | 0 tCO₂ | 0.000 tCO₂/MWh |