NEM
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NEM
Daily analysis
Monday 18 May 2026
Trading day 2026-05-18
Prices
Trading day · 04:00 → 04:00 AEST · 30-min average
NSW VIC QLD SA TAS
| Region | Avg | VWAP | Min | Max | Neg | Cap |
|---|---|---|---|---|---|---|
| NSW | $172 | $174 | $90 | $341 | 0 | 0 |
| QLD | $167 | $169 | $84 | $338 | 0 | 0 |
| SA | $145 | $141 | $70 | $262 | 0 | 0 |
| VIC | $162 | $165 | $86 | $300 | 0 | 0 |
| TAS | $118 | $119 | $88 | $223 | 0 | 0 |
Min · Max are 5-minute dispatch extremes; the price chart plots 30-minute averages, so its peak reads lower.
Demand
NSW
Peak
9,918MW
18:05
Trough
6,368MW
04:15
Energy
397.7GWh
QLD
Peak
8,134MW
17:55
Trough
5,568MW
04:05
Energy
324.3GWh
SA
Peak
1,789MW
18:35
Trough
826MW
13:35
Energy
63.6GWh
VIC
Peak
7,111MW
18:00
Trough
4,264MW
04:10
Energy
274.3GWh
TAS
Peak
1,317MW
17:55
Trough
943MW
02:15
Energy
54.3GWh
FCAS
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $7,973 | 0 | $45 | 18 May, 11:35 |
| LOWERREG | $1,748 | 0 | $8 | 18 May, 10:15 |
| RAISE60SEC | $298 | 0 | $0 | 18 May, 11:35 |
| RAISE6SEC | $295 | 0 | $0 | 18 May, 08:25 |
| RAISE5MIN | $89 | 0 | $0 | 18 May, 11:35 |
| LOWER60SEC | $51 | 0 | $0 | 19 May, 02:25 |
| LOWER5MIN | $26 | 0 | $0 | 18 May, 04:35 |
| LOWER6SEC | $12 | 0 | $0 | 18 May, 04:05 |
| Total | $10,492 | |||
Cost = NSW RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| LOWER6SEC | $22,207 | 0 | $53 | 18 May, 07:35 |
| RAISEREG | $21,483 | 0 | $45 | 18 May, 11:35 |
| LOWER60SEC | $8,782 | 0 | $15 | 18 May, 07:35 |
| LOWERREG | $3,391 | 0 | $8 | 18 May, 10:15 |
| RAISE6SEC | $669 | 0 | $0 | 18 May, 08:25 |
| RAISE60SEC | $375 | 0 | $0 | 18 May, 17:55 |
| LOWER5MIN | $329 | 0 | $0 | 18 May, 10:25 |
| RAISE5MIN | $122 | 0 | $0 | 18 May, 08:05 |
| Total | $57,357 | |||
Cost = QLD RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $17,066 | 0 | $45 | 18 May, 11:35 |
| LOWERREG | $4,632 | 0 | $8 | 18 May, 10:15 |
| RAISE60SEC | $752 | 0 | $0 | 18 May, 11:35 |
| RAISE6SEC | $751 | 0 | $0 | 18 May, 08:25 |
| RAISE5MIN | $210 | 0 | $0 | 18 May, 11:35 |
| LOWER60SEC | $79 | 0 | $0 | 19 May, 02:25 |
| LOWER5MIN | $26 | 0 | $0 | 18 May, 04:35 |
| LOWER6SEC | $17 | 0 | $0 | 18 May, 04:05 |
| Total | $23,533 | |||
Cost = VIC RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $17,839 | 0 | $45 | 18 May, 11:35 |
| LOWERREG | $4,767 | 0 | $8 | 18 May, 10:15 |
| RAISE6SEC | $303 | 0 | $0 | 18 May, 08:25 |
| RAISE60SEC | $263 | 0 | $0 | 18 May, 11:35 |
| RAISE5MIN | $78 | 0 | $0 | 18 May, 11:35 |
| LOWER60SEC | $64 | 0 | $0 | 19 May, 02:25 |
| LOWER5MIN | $18 | 0 | $0 | 18 May, 04:35 |
| LOWER6SEC | $15 | 0 | $0 | 18 May, 04:05 |
| Total | $23,347 | |||
Cost = SA RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISE6SEC | $104,921 | 2 | $4,293 | 18 May, 15:25 |
| RAISEREG | $10,205 | 0 | $11 | 18 May, 15:25 |
| LOWERREG | $4,563 | 0 | $4 | 18 May, 07:10 |
| LOWER6SEC | $2,177 | 0 | $3 | 18 May, 04:10 |
| RAISE60SEC | $1,278 | 0 | $0 | 18 May, 11:35 |
| LOWER60SEC | $1,146 | 0 | $1 | 18 May, 04:10 |
| RAISE5MIN | $219 | 0 | $0 | 18 May, 04:05 |
| LOWER5MIN | $51 | 0 | $0 | 18 May, 04:10 |
| Total | $124,561 | |||
Cost = TAS RRP × cleared MW per 5-min interval.
Battery dispatch
Peak moment
Fleet discharged 976 MW at 18:00 as NSW spot hit $134/MWh.
Peak moment
Fleet discharged 745 MW at 18:30 as QLD spot hit $146/MWh.
Peak moment
Fleet discharged 607 MW at 18:30 as VIC spot hit $124/MWh.
Peak moment
Fleet discharged 411 MW at 08:30 as SA spot hit $210/MWh.
Peak moment
Fleet discharged 2,295 MW at 18:30 as TAS spot hit $88/MWh.
Discharged
3,933MWh
peak 976 MW · 18:00
Charged
4,218MWh
peak 631 MW
Net
-285MWh
discharge − charge
Round-trip
93%
discharge / charge ratio
Discharged
3,795MWh
peak 745 MW · 18:30
Charged
4,040MWh
peak 508 MW
Net
-244MWh
discharge − charge
Round-trip
94%
discharge / charge ratio
Discharged
3,809MWh
peak 607 MW · 18:30
Charged
2,751MWh
peak 584 MW
Net
+1,058MWh
discharge − charge
Round-trip
138%
discharge / charge ratio
Discharged
1,649MWh
peak 411 MW · 08:30
Charged
1,756MWh
peak 416 MW
Net
-108MWh
discharge − charge
Round-trip
94%
discharge / charge ratio
NEM-wide
Discharged
13,185MWh
peak 2,295 MW · 18:30
Charged
12,765MWh
peak 1,446 MW
Net
+421MWh
discharge − charge
Round-trip
103%
discharge / charge ratio
Fleet net dispatch · spot-price overlay · 30-min average
Net MWdischarge ↑ · charge ↓NSWQLDVICSATAS$/MWh
Regional dispatch ranking
| Region | Discharged | Net |
|---|---|---|
#1NSW | 3,933MWh | -285 |
#2VIC | 3,809MWh | +1,058 |
#3QLD | 3,795MWh | -244 |
#4SA | 1,649MWh | -108 |
Generation Mix
- Coal80.8% · 165.6 GWh
- Gas2.3% · 4.8 GWh
- Hydro6.1% · 12.5 GWh
- Wind3.2% · 6.6 GWh
- Solar (utility)2.4% · 4.9 GWh
- Solar (rooftop)3.3% · 6.7 GWh
- Battery1.9% · 3.9 GWh
- Coal61.2% · 113.6 GWh
- Gas14.9% · 27.7 GWh
- Hydro1.8% · 3.4 GWh
- Wind7.9% · 14.7 GWh
- Solar (utility)6.7% · 12.5 GWh
- Solar (rooftop)5.3% · 9.9 GWh
- Battery2.0% · 3.8 GWh
- Coal64.1% · 92.4 GWh
- Gas9.3% · 13.4 GWh
- Hydro15.0% · 21.7 GWh
- Wind3.5% · 5.0 GWh
- Solar (utility)1.5% · 2.2 GWh
- Solar (rooftop)3.2% · 4.6 GWh
- Battery2.6% · 3.8 GWh
- Other0.7% · 1.1 GWh
- Gas52.6% · 22.7 GWh
- Wind25.5% · 11.0 GWh
- Solar (utility)4.2% · 1.8 GWh
- Solar (rooftop)13.9% · 6.0 GWh
- Battery3.8% · 1.6 GWh
- Gas4.4% · 1.4 GWh
- Hydro93.1% · 30.0 GWh
- Wind1.0% · 0.3 GWh
- Solar (rooftop)1.5% · 0.5 GWh
Renewables
NSW · Daily renewable share
9.9%
VIC · Daily renewable share
22.8%
QLD · Daily renewable share
20.3%
SA · Daily renewable share
42.6%
TAS · Daily renewable share
105.0%
Peak instantaneous
28.4%
at 18:00
Daily NEM-wide share
22.4%
By region (daily share)
- NSW 9.9%
- VIC 22.8%
- QLD 20.3%
- SA 42.6%
- TAS 105.0%
Interconnectors
| Region (proxy) | Net flow | Direction changes | Hours at limit |
|---|---|---|---|
| N-Q-MNSP1 | +11.0 GWh | 2 | — |
| NSW1-QLD1 | −11.5 GWh | 46 | — |
| VIC1-NSW1 | −11.6 GWh | 10 | — |
| V-SA | +8.7 GWh | 11 | — |
| T-V-MNSP1 | +5.0 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
389.5k tCO₂
▲ 15.4% vs same day last week
Intensity by region
| NSW | 149.9k tCO₂ | 0.732 tCO₂/MWh |
| QLD | 112.9k tCO₂ | 0.611 tCO₂/MWh |
| SA | 10.6k tCO₂ | 0.244 tCO₂/MWh |
| VIC | 115.2k tCO₂ | 0.802 tCO₂/MWh |
| TAS | 922 tCO₂ | 0.029 tCO₂/MWh |