NEM
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NEM
Daily analysis
Thursday 21 May 2026
Trading day 2026-05-21
Prices
Trading day · 04:00 → 04:00 AEST · 30-min average
NSW VIC QLD SA TAS
| Region | Avg | VWAP | Min | Max | Neg | Cap |
|---|---|---|---|---|---|---|
| NSW | $104 | $107 | $1 | $207 | 0 | 0 |
| QLD | $61 | $68 | -$4 | $148 | 12 | 0 |
| SA | $110 | $111 | $60 | $198 | 0 | 0 |
| VIC | $109 | $110 | $60 | $194 | 0 | 0 |
| TAS | $103 | $103 | $87 | $165 | 0 | 0 |
Min · Max are 5-minute dispatch extremes; the price chart plots 30-minute averages, so its peak reads lower.
Demand
NSW
Peak
9,808MW
18:25
Trough
6,160MW
12:25
Energy
375.4GWh
QLD
Peak
7,375MW
17:55
Trough
3,824MW
11:35
Energy
273.8GWh
SA
Peak
1,786MW
18:50
Trough
628MW
13:20
Energy
62.6GWh
VIC
Peak
7,602MW
18:00
Trough
4,673MW
04:05
Energy
293.8GWh
TAS
Peak
1,428MW
07:50
Trough
1,060MW
13:10
Energy
58.4GWh
FCAS
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $6,682 | 0 | $20 | 21 May, 09:35 |
| LOWERREG | $1,134 | 0 | $9 | 21 May, 16:15 |
| RAISE60SEC | $447 | 0 | $0 | 21 May, 18:00 |
| RAISE6SEC | $337 | 0 | $0 | 21 May, 08:00 |
| RAISE5MIN | $90 | 0 | $0 | 21 May, 08:00 |
| LOWER60SEC | $2 | 0 | $0 | 21 May, 05:05 |
| LOWER5MIN | $1 | 0 | $0 | 21 May, 04:55 |
| LOWER6SEC | $0 | 0 | $0 | 21 May, 05:10 |
| Total | $8,693 | |||
Cost = NSW RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| LOWER6SEC | $20,860 | 0 | $6 | 21 May, 10:45 |
| LOWER60SEC | $18,527 | 0 | $6 | 21 May, 10:45 |
| RAISEREG | $14,077 | 0 | $20 | 21 May, 09:35 |
| LOWER5MIN | $3,692 | 0 | $6 | 21 May, 15:40 |
| LOWERREG | $3,343 | 0 | $9 | 21 May, 16:15 |
| RAISE6SEC | $320 | 0 | $0 | 21 May, 16:50 |
| RAISE60SEC | $106 | 0 | $0 | 21 May, 04:45 |
| RAISE5MIN | $77 | 0 | $0 | 21 May, 06:15 |
| Total | $61,002 | |||
Cost = QLD RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $12,682 | 0 | $20 | 21 May, 09:35 |
| LOWERREG | $4,514 | 0 | $9 | 21 May, 16:15 |
| RAISE60SEC | $1,093 | 0 | $0 | 21 May, 18:00 |
| RAISE6SEC | $882 | 0 | $0 | 21 May, 08:00 |
| RAISE5MIN | $230 | 0 | $0 | 21 May, 08:00 |
| LOWER60SEC | $3 | 0 | $0 | 21 May, 05:05 |
| LOWER5MIN | $1 | 0 | $0 | 21 May, 04:55 |
| LOWER6SEC | $0 | 0 | $0 | 21 May, 05:10 |
| Total | $19,406 | |||
Cost = VIC RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $9,401 | 0 | $20 | 21 May, 09:35 |
| LOWERREG | $4,794 | 0 | $9 | 21 May, 16:15 |
| RAISE60SEC | $352 | 0 | $0 | 21 May, 18:00 |
| RAISE6SEC | $335 | 0 | $0 | 21 May, 08:00 |
| RAISE5MIN | $72 | 0 | $0 | 21 May, 08:00 |
| LOWER60SEC | $2 | 0 | $0 | 21 May, 05:05 |
| LOWER5MIN | $1 | 0 | $0 | 21 May, 04:55 |
| LOWER6SEC | $1 | 0 | $0 | 21 May, 05:10 |
| Total | $14,957 | |||
Cost = SA RRP × cleared MW per 5-min interval.
| Service | Cost | Spikes | Peak | When |
|---|---|---|---|---|
| RAISEREG | $14,071 | 0 | $88 | 21 May, 19:10 |
| LOWER6SEC | $12,109 | 0 | $3 | 21 May, 04:05 |
| RAISE6SEC | $5,809 | 0 | $46 | 21 May, 08:45 |
| LOWERREG | $4,664 | 0 | $3 | 21 May, 04:35 |
| RAISE60SEC | $3,251 | 0 | $68 | 21 May, 19:10 |
| LOWER60SEC | $2,247 | 0 | $3 | 21 May, 04:05 |
| RAISE5MIN | $285 | 0 | $0 | 21 May, 04:05 |
| LOWER5MIN | $278 | 0 | $0 | 21 May, 04:05 |
| Total | $42,716 | |||
Cost = TAS RRP × cleared MW per 5-min interval.
Battery dispatch
Peak moment
Fleet discharged 1,019 MW at 18:30 as NSW spot hit $128/MWh.
Peak moment
Fleet discharged 915 MW at 18:00 as QLD spot hit $97/MWh.
Peak moment
Fleet discharged 861 MW at 18:00 as VIC spot hit $138/MWh.
Peak moment
Fleet discharged 374 MW at 18:00 as SA spot hit $139/MWh.
Peak moment
Fleet discharged 3,058 MW at 18:00 as TAS spot hit $110/MWh.
Discharged
4,696MWh
peak 1,019 MW · 18:30
Charged
5,096MWh
peak 966 MW
Net
-399MWh
discharge − charge
Round-trip
92%
discharge / charge ratio
Discharged
4,446MWh
peak 915 MW · 18:00
Charged
5,626MWh
peak 1,203 MW
Net
-1,181MWh
discharge − charge
Round-trip
79%
discharge / charge ratio
Discharged
4,253MWh
peak 861 MW · 18:00
Charged
4,105MWh
peak 772 MW
Net
+148MWh
discharge − charge
Round-trip
104%
discharge / charge ratio
Discharged
1,648MWh
peak 374 MW · 18:00
Charged
1,385MWh
peak 321 MW
Net
+263MWh
discharge − charge
Round-trip
119%
discharge / charge ratio
NEM-wide
Discharged
15,042MWh
peak 3,058 MW · 18:00
Charged
16,211MWh
peak 2,758 MW
Net
-1,169MWh
discharge − charge
Round-trip
93%
discharge / charge ratio
Fleet net dispatch · spot-price overlay · 30-min average
Net MWdischarge ↑ · charge ↓NSWQLDVICSATAS$/MWh
Regional dispatch ranking
| Region | Discharged | Net |
|---|---|---|
#1NSW | 4,696MWh | -399 |
#2QLD | 4,446MWh | -1,181 |
#3VIC | 4,253MWh | +148 |
#4SA | 1,648MWh | +263 |
Generation Mix
- Coal63.2% · 132.5 GWh
- Gas2.7% · 5.8 GWh
- Hydro4.2% · 8.9 GWh
- Wind5.3% · 11.1 GWh
- Solar (utility)12.0% · 25.1 GWh
- Solar (rooftop)10.3% · 21.6 GWh
- Battery2.2% · 4.7 GWh
- Coal56.4% · 109.0 GWh
- Gas5.9% · 11.5 GWh
- Hydro2.6% · 5.0 GWh
- Wind8.0% · 15.4 GWh
- Solar (utility)11.1% · 21.5 GWh
- Solar (rooftop)13.7% · 26.4 GWh
- Battery2.3% · 4.4 GWh
- Coal66.3% · 108.2 GWh
- Gas8.7% · 14.2 GWh
- Hydro12.2% · 20.0 GWh
- Wind1.1% · 1.7 GWh
- Solar (utility)4.4% · 7.1 GWh
- Solar (rooftop)4.6% · 7.5 GWh
- Battery2.6% · 4.3 GWh
- Other0.1% · 0.2 GWh
- Gas50.4% · 17.1 GWh
- Wind16.0% · 5.4 GWh
- Solar (utility)7.0% · 2.4 GWh
- Solar (rooftop)20.9% · 7.1 GWh
- Battery4.9% · 1.6 GWh
- Other0.8% · 0.3 GWh
- Gas0.4% · 0.1 GWh
- Hydro94.4% · 30.8 GWh
- Wind2.5% · 0.8 GWh
- Solar (rooftop)2.7% · 0.9 GWh
Renewables
NSW · Daily renewable share
24.6%
VIC · Daily renewable share
21.6%
QLD · Daily renewable share
31.2%
SA · Daily renewable share
28.8%
TAS · Daily renewable share
103.2%
Peak instantaneous
45.6%
at 09:50
Daily NEM-wide share
30.0%
By region (daily share)
- NSW 24.6%
- VIC 21.6%
- QLD 31.2%
- SA 28.8%
- TAS 103.2%
Interconnectors
| Region (proxy) | Net flow | Direction changes | Hours at limit |
|---|---|---|---|
| N-Q-MNSP1 | +32.1 GWh | 0 | — |
| NSW1-QLD1 | −22.6 GWh | 12 | — |
| VIC1-NSW1 | +954 MWh | 32 | — |
| V-SA | −10.2 GWh | 19 | — |
| T-V-MNSP1 | +2.2 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
361.8k tCO₂
▲ 12.5% vs same day last week
Intensity by region
| NSW | 120.3k tCO₂ | 0.578 tCO₂/MWh |
| QLD | 100.2k tCO₂ | 0.525 tCO₂/MWh |
| SA | 7.8k tCO₂ | 0.229 tCO₂/MWh |
| VIC | 133.4k tCO₂ | 0.817 tCO₂/MWh |
| TAS | 83 tCO₂ | 0.003 tCO₂/MWh |