NEM
NEM Daily analysis

Tuesday 19 May 2026

Trading day 2026-05-19

Prices

Trading day · 04:00 → 04:00 AEST · 30-min average

NSW VIC QLD SA TAS
$0 $33 $65 $98 $130 -$10 $20 $50 $80 $110 $0 $48 $95 $143 $190 -$10 $20 $50 $80 $110 $0 $33 $65 $98 $130 04:00 10:00 16:00 22:00 04:00
Region Avg VWAP Min Max Neg Cap
NSW $80 $80 $56 $131 0 0
QLD $96 $96 $59 $232 0 0
SA $57 $60 -$46 $120 2 0
VIC $56 $57 -$12 $114 3 0
TAS $97 $97 $63 $150 0 0

Min · Max are 5-minute dispatch extremes; the price chart plots 30-minute averages, so its peak reads lower.

Demand

NSW
Peak
9,840MW
17:55
Trough
6,537MW
03:55
Energy
387.7GWh
QLD
Peak
7,922MW
17:50
Trough
5,463MW
03:45
Energy
320.5GWh
SA
Peak
1,842MW
18:25
Trough
835MW
12:45
Energy
66.2GWh
VIC
Peak
7,178MW
18:05
Trough
4,362MW
04:10
Energy
270.7GWh
TAS
Peak
1,266MW
07:40
Trough
895MW
00:35
Energy
50.0GWh

FCAS

ServiceCostSpikesPeakWhen
RAISEREG$12,4630$2019 May, 04:15
LOWERREG$1,7710$919 May, 07:05
RAISE6SEC$2080$019 May, 06:55
RAISE60SEC$1530$019 May, 16:40
LOWER60SEC$1190$019 May, 13:35
RAISE5MIN$620$019 May, 06:10
LOWER5MIN$450$019 May, 14:50
LOWER6SEC$210$019 May, 13:55
Total$14,843

Cost = NSW RRP × cleared MW per 5-min interval.

ServiceCostSpikesPeakWhen
RAISEREG$12,4340$2019 May, 04:15
LOWERREG$4,4990$919 May, 07:05
LOWER60SEC$7080$119 May, 23:10
RAISE6SEC$6730$019 May, 06:55
RAISE60SEC$3900$019 May, 16:40
LOWER6SEC$3510$119 May, 05:45
LOWER5MIN$1180$019 May, 14:50
RAISE5MIN$1030$019 May, 06:10
Total$19,275

Cost = QLD RRP × cleared MW per 5-min interval.

ServiceCostSpikesPeakWhen
RAISEREG$13,9250$2019 May, 04:15
LOWERREG$7,8050$919 May, 07:05
RAISE6SEC$4320$019 May, 06:55
RAISE60SEC$4280$019 May, 16:40
RAISE5MIN$1430$019 May, 06:10
LOWER60SEC$1090$019 May, 13:35
LOWER5MIN$260$019 May, 14:50
LOWER6SEC$180$019 May, 13:55
Total$22,887

Cost = VIC RRP × cleared MW per 5-min interval.

ServiceCostSpikesPeakWhen
RAISEREG$6,4850$2019 May, 04:15
LOWERREG$4,8190$919 May, 07:05
RAISE6SEC$2150$019 May, 06:55
RAISE60SEC$1490$019 May, 16:40
LOWER60SEC$1150$019 May, 13:35
RAISE5MIN$480$019 May, 06:10
LOWER5MIN$210$019 May, 14:50
LOWER6SEC$170$019 May, 13:55
Total$11,870

Cost = SA RRP × cleared MW per 5-min interval.

ServiceCostSpikesPeakWhen
RAISEREG$13,3040$4419 May, 16:15
RAISE6SEC$11,1620$3619 May, 17:10
LOWER6SEC$5,8250$319 May, 04:05
LOWERREG$4,0850$319 May, 09:55
RAISE60SEC$1,7920$019 May, 04:05
LOWER60SEC$1,7630$319 May, 06:05
RAISE5MIN$2480$019 May, 04:05
LOWER5MIN$600$019 May, 04:05
Total$38,240

Cost = TAS RRP × cleared MW per 5-min interval.

Battery dispatch

Peak moment

Fleet discharged 626 MW at 18:30 as NSW spot hit $81/MWh.

Peak moment

Fleet discharged 522 MW at 07:30 as QLD spot hit $174/MWh.

Peak moment

Fleet discharged 646 MW at 08:30 as VIC spot hit $78/MWh.

Peak moment

Fleet discharged 335 MW at 08:00 as SA spot hit $84/MWh.

Peak moment

Fleet discharged 1,444 MW at 08:00 as TAS spot hit $96/MWh.

Discharged
3,319MWh
peak 626 MW · 18:30
Charged
3,477MWh
peak 759 MW
Net
-158MWh
discharge − charge
Round-trip
95%
discharge / charge ratio
Discharged
2,250MWh
peak 522 MW · 07:30
Charged
3,871MWh
peak 432 MW
Net
-1,621MWh
discharge − charge
Round-trip
58%
discharge / charge ratio
Discharged
3,887MWh
peak 646 MW · 08:30
Charged
4,459MWh
peak 1,276 MW
Net
-572MWh
discharge − charge
Round-trip
87%
discharge / charge ratio
Discharged
1,148MWh
peak 335 MW · 08:00
Charged
2,276MWh
peak 679 MW
Net
-1,129MWh
discharge − charge
Round-trip
50%
discharge / charge ratio
NEM-wide
Discharged
10,603MWh
peak 1,444 MW · 08:00
Charged
14,083MWh
peak 2,785 MW
Net
-3,480MWh
discharge − charge
Round-trip
75%
discharge / charge ratio

Fleet net dispatch · spot-price overlay · 30-min average

Net MWdischarge ↑ · charge ↓NSWQLDVICSATAS$/MWh
-4.0 GW-2.0 GW0 MW2.0 GW-$50$0$50$100$150$20023:3006:3713:4520:5204:00

Regional dispatch ranking

RegionDischargedNet
#1VIC
3,887MWh
-572
#2NSW
3,319MWh
-158
#3QLD
2,250MWh
-1,621
#4SA
1,148MWh
-1,129

Generation Mix

TOP FUEL 70.6%
  • Coal70.6% · 142.9 GWh
  • Gas0.6% · 1.1 GWh
  • Hydro4.5% · 9.1 GWh
  • Wind10.5% · 21.2 GWh
  • Solar (utility)6.5% · 13.2 GWh
  • Solar (rooftop)5.7% · 11.5 GWh
  • Battery1.6% · 3.3 GWh
TOP FUEL 60.5%
  • Coal60.5% · 108.7 GWh
  • Gas13.5% · 24.2 GWh
  • Hydro1.8% · 3.2 GWh
  • Wind13.7% · 24.6 GWh
  • Solar (utility)4.3% · 7.8 GWh
  • Solar (rooftop)5.0% · 9.0 GWh
  • Battery1.3% · 2.2 GWh
TOP FUEL 59.3%
  • Coal59.3% · 98.2 GWh
  • Gas3.1% · 5.1 GWh
  • Hydro5.3% · 8.7 GWh
  • Wind22.0% · 36.4 GWh
  • Solar (utility)3.3% · 5.4 GWh
  • Solar (rooftop)4.8% · 7.9 GWh
  • Battery2.3% · 3.9 GWh
TOP FUEL 62.1%
  • Gas17.6% · 7.6 GWh
  • Wind62.1% · 26.8 GWh
  • Solar (utility)3.7% · 1.6 GWh
  • Solar (rooftop)14.0% · 6.1 GWh
  • Battery2.7% · 1.1 GWh
TOP FUEL 83.3%
  • Gas1.4% · 0.4 GWh
  • Hydro83.3% · 22.9 GWh
  • Wind12.3% · 3.4 GWh
  • Solar (rooftop)3.0% · 0.8 GWh
coalgashydrobattery dischargewindsolar utilitysolar rooftopBattery (charge)
23:3005:3711:4517:5200:0010.1 GW 0
coalgashydrobattery dischargewindsolar utilitysolar rooftopBattery (charge)
23:3005:3711:4517:5200:008.5 GW 0
coalgashydrobattery dischargewindsolar utilitysolar rooftopBattery (charge)
23:3005:3711:4517:5200:008.7 GW 0
gasbattery dischargewindsolar utilitysolar rooftopBattery (charge)
23:3005:3711:4517:5200:002.4 GW 0
gashydrowindsolar rooftop
23:3005:3711:4517:5200:001.3 GW 0

Renewables

NSW · Daily renewable share
23.1%
VIC · Daily renewable share
37.1%
QLD · Daily renewable share
22.5%
SA · Daily renewable share
82.8%
TAS · Daily renewable share
95.4%
Peak instantaneous
45.3%
at 14:20
Daily NEM-wide share
33.0%
By region (daily share)
  • NSW
    23.1%
  • VIC
    37.1%
  • QLD
    22.5%
  • SA
    82.8%
  • TAS
    95.4%

Interconnectors

Region (proxy) Net flow Direction changes Hours at limit
N-Q-MNSP1 +2.3 GWh 32
NSW1-QLD1 −27.7 GWh 14
VIC1-NSW1 +29.8 GWh 8
V-SA +658 MWh 15
T-V-MNSP1 −1.7 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
353.5k tCO₂
▲ 6.9% vs same day last week
Intensity by region
NSW 126.9k tCO₂ 0.633 tCO₂/MWh
QLD 106.2k tCO₂ 0.598 tCO₂/MWh
SA 3.2k tCO₂ 0.075 tCO₂/MWh
VIC 116.9k tCO₂ 0.706 tCO₂/MWh
TAS 240 tCO₂ 0.009 tCO₂/MWh