NEM
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NEM
Daily analysis
Sunday 31 May 2026
Trading day 2026-05-31
Prices
Trading day · 04:00 → 04:00 AEST · 30-min average
NSW VIC QLD SA TAS
| Region | Avg | VWAP | Min | Max | Neg | Cap |
|---|---|---|---|---|---|---|
| NSW | $45 | $49 | -$2 | $103 | 5 | 0 |
| QLD | $50 | $56 | -$2 | $114 | 5 | 0 |
| SA | $37 | $43 | -$2 | $123 | 7 | 0 |
| VIC | $34 | $38 | -$2 | $113 | 12 | 0 |
| TAS | $84 | $84 | $72 | $161 | 0 | 0 |
Min · Max are 5-minute dispatch extremes; the price chart plots 30-minute averages, so its peak reads lower.
Demand
NSW
Peak
9,614MW
18:00
Trough
5,452MW
12:05
Energy
349.0GWh
QLD
Peak
7,345MW
18:05
Trough
3,373MW
11:00
Energy
260.0GWh
SA
Peak
1,830MW
18:20
Trough
751MW
14:35
Energy
65.0GWh
VIC
Peak
7,008MW
17:55
Trough
4,129MW
12:00
Energy
251.6GWh
TAS
Peak
1,226MW
18:10
Trough
822MW
04:10
Energy
47.1GWh
FCAS
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $8,378 | 0 | $12 | 31 May, 14:55 |
| LOWERREG | $1,841 | 0 | $8 | 31 May, 14:55 |
| RAISE60SEC | $287 | 0 | $0 | 31 May, 19:00 |
| LOWER60SEC | $259 | 0 | $0 | 31 May, 11:00 |
| RAISE6SEC | $254 | 0 | $0 | 31 May, 19:00 |
| LOWER6SEC | $109 | 0 | $1 | 31 May, 15:25 |
| LOWER5MIN | $84 | 0 | $0 | 31 May, 15:30 |
| RAISE5MIN | $79 | 0 | $0 | 31 May, 18:50 |
| Total | $11,291 | |||
Cost = NSW RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $10,148 | 0 | $12 | 31 May, 14:55 |
| LOWERREG | $5,220 | 0 | $8 | 31 May, 14:55 |
| LOWER60SEC | $680 | 0 | $0 | 31 May, 11:00 |
| RAISE6SEC | $515 | 0 | $0 | 31 May, 19:00 |
| RAISE60SEC | $498 | 0 | $0 | 31 May, 19:00 |
| LOWER6SEC | $217 | 0 | $1 | 31 May, 15:25 |
| LOWER5MIN | $144 | 0 | $0 | 31 May, 15:30 |
| RAISE5MIN | $127 | 0 | $0 | 31 May, 18:50 |
| Total | $17,549 | |||
Cost = QLD RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $9,192 | 0 | $12 | 31 May, 14:55 |
| LOWERREG | $4,791 | 0 | $8 | 31 May, 14:55 |
| RAISE6SEC | $264 | 0 | $0 | 31 May, 19:00 |
| RAISE60SEC | $200 | 0 | $0 | 31 May, 19:00 |
| LOWER60SEC | $185 | 0 | $0 | 31 May, 11:00 |
| RAISE5MIN | $85 | 0 | $0 | 31 May, 18:50 |
| LOWER6SEC | $69 | 0 | $1 | 31 May, 15:25 |
| LOWER5MIN | $41 | 0 | $0 | 31 May, 15:30 |
| Total | $14,827 | |||
Cost = VIC RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $7,118 | 0 | $12 | 31 May, 14:55 |
| LOWERREG | $4,604 | 0 | $8 | 31 May, 14:55 |
| LOWER60SEC | $282 | 0 | $0 | 31 May, 11:00 |
| RAISE6SEC | $177 | 0 | $0 | 31 May, 19:00 |
| RAISE60SEC | $161 | 0 | $0 | 31 May, 19:00 |
| LOWER6SEC | $79 | 0 | $1 | 31 May, 15:25 |
| RAISE5MIN | $53 | 0 | $0 | 31 May, 18:50 |
| LOWER5MIN | $53 | 0 | $0 | 31 May, 15:30 |
| Total | $12,526 | |||
Cost = SA RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISE6SEC | $153,405 | 2 | $4,955 | 31 May, 18:55 |
| RAISEREG | $14,855 | 0 | $73 | 31 May, 18:55 |
| LOWERREG | $8,932 | 0 | $15 | 31 May, 05:05 |
| LOWER6SEC | $2,745 | 0 | $37 | 31 May, 19:00 |
| RAISE60SEC | $1,824 | 0 | $2 | 31 May, 16:00 |
| LOWER60SEC | $1,321 | 0 | $1 | 31 May, 07:15 |
| RAISE5MIN | $420 | 0 | $3 | 31 May, 06:55 |
| LOWER5MIN | $7 | 0 | $0 | 31 May, 06:50 |
| Total | $183,509 | |||
Cost = TAS RRP × cleared MW per 5-min interval.
Battery dispatch
Peak moment
Fleet discharged 1,191 MW at 18:30 as NSW spot hit $81/MWh.
Peak moment
Fleet discharged 868 MW at 18:00 as QLD spot hit $104/MWh.
Peak moment
Fleet discharged 640 MW at 18:00 as VIC spot hit $90/MWh.
Peak moment
Fleet discharged 426 MW at 19:00 as SA spot hit $109/MWh.
Peak moment
Fleet discharged 2,940 MW at 18:00 as TAS spot hit $86/MWh.
Discharged
5,356MWh
peak 1,191 MW · 18:30
Charged
5,896MWh
peak 1,676 MW
Net
-541MWh
discharge − charge
Round-trip
91%
discharge / charge ratio
Discharged
3,832MWh
peak 868 MW · 18:00
Charged
5,687MWh
peak 1,344 MW
Net
-1,855MWh
discharge − charge
Round-trip
67%
discharge / charge ratio
Discharged
1,466MWh
peak 640 MW · 18:00
Charged
1,814MWh
peak 336 MW
Net
-348MWh
discharge − charge
Round-trip
81%
discharge / charge ratio
Discharged
1,545MWh
peak 426 MW · 19:00
Charged
1,765MWh
peak 291 MW
Net
-220MWh
discharge − charge
Round-trip
88%
discharge / charge ratio
NEM-wide
Discharged
12,199MWh
peak 2,940 MW · 18:00
Charged
15,163MWh
peak 3,281 MW
Net
-2,964MWh
discharge − charge
Round-trip
80%
discharge / charge ratio
Fleet net dispatch · spot-price overlay · 30-min average
Net MWdischarge ↑ · charge ↓NSWQLDVICSATAS$/MWh
Regional dispatch ranking
| Region | Discharged | Net |
|---|---|---|
#1NSW | 5,356MWh | -541 |
#2QLD | 3,832MWh | -1,855 |
#3SA | 1,545MWh | -220 |
#4VIC | 1,466MWh | -348 |
Generation Mix
- Coal57.5% · 115.8 GWh
- Gas0.5% · 1.0 GWh
- Hydro5.4% · 10.8 GWh
- Wind16.8% · 33.8 GWh
- Solar (utility)6.4% · 13.0 GWh
- Solar (rooftop)10.8% · 21.7 GWh
- Battery2.7% · 5.4 GWh
- Coal52.7% · 88.8 GWh
- Gas3.3% · 5.6 GWh
- Hydro3.5% · 6.0 GWh
- Wind11.8% · 19.9 GWh
- Solar (utility)11.8% · 19.9 GWh
- Solar (rooftop)14.6% · 24.7 GWh
- Battery2.3% · 3.8 GWh
- Coal53.2% · 87.3 GWh
- Hydro1.7% · 2.8 GWh
- Wind36.6% · 60.1 GWh
- Solar (utility)2.0% · 3.3 GWh
- Solar (rooftop)5.6% · 9.2 GWh
- Battery0.9% · 1.5 GWh
- Gas11.8% · 4.2 GWh
- Wind61.2% · 21.7 GWh
- Solar (utility)6.7% · 2.4 GWh
- Solar (rooftop)16.0% · 5.7 GWh
- Battery4.3% · 1.5 GWh
- Hydro57.7% · 15.2 GWh
- Wind39.9% · 10.5 GWh
- Solar (rooftop)2.4% · 0.6 GWh
Renewables
NSW · Daily renewable share
31.5%
VIC · Daily renewable share
49.8%
QLD · Daily renewable share
35.5%
SA · Daily renewable share
72.0%
TAS · Daily renewable share
93.0%
Peak instantaneous
60.1%
at 12:25
Daily NEM-wide share
43.8%
By region (daily share)
- NSW 31.5%
- VIC 49.8%
- QLD 35.5%
- SA 72.0%
- TAS 93.0%
Interconnectors
| Region (proxy) | Net flow | Direction changes | Hours at limit |
|---|---|---|---|
| N-Q-MNSP1 | +1.4 GWh | 18 | — |
| NSW1-QLD1 | −18.9 GWh | 2 | — |
| VIC1-NSW1 | +33.6 GWh | 8 | — |
| V-SA | −8.6 GWh | 9 | — |
| 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
Total emissions
287.1k tCO₂
▼ 17.1% vs same day last week
Intensity by region
| NSW | 102.8k tCO₂ | 0.513 tCO₂/MWh |
| QLD | 80.6k tCO₂ | 0.483 tCO₂/MWh |
| SA | 2.1k tCO₂ | 0.060 tCO₂/MWh |
| VIC | 101.5k tCO₂ | 0.629 tCO₂/MWh |
| TAS | 0 tCO₂ | 0.000 tCO₂/MWh |