AEMO operates Western Australia's Wholesale Electricity Market on the SWIS (South West Interconnected System), an islanded grid with no interconnection to the rest of Australia and one of the world's highest rooftop-solar shares. GridVigil tracks 5-minute operational demand and AEMO's demand forecast from AEMO's own published WEM data. The SWIS covers the populated southwest only, so Australia as a whole is not colored on GridVigil's map.
As of Aug 25, 2026, real grid metrics for Western Australia are shown below. GridVigil's Power Pressure Score is not yet calculated for this region.
Current data
Current Western Australia electricity demand is 2.4 GW.
The most recent peak was 2.6 GW.
GridVigil Power Pressure Score is not yet calculated for Western Australia: the U.S. scoring thresholds aren't a defensible fit without region-specific calibration, so raw metrics are shown here instead. Why.
Data last updated:
Near-term load forecast
Aug 22, 2026: 2.5 GW forecast peak
Aug 23, 2026: 2.6 GW forecast peak
Aug 24, 2026: 2.8 GW forecast peak
Aug 25, 2026: 2.4 GW forecast peak
Source: wem_pulse, as of Aug 25, 2026.
Historical comparison
Western Australia demand is currently 2.4 GW, 36.1% above this time yesterday (1.8 GW).
Western Australia demand is currently 29.3% above its 7-day average for this time of day (1.9 GW).
Western Australia's peak today is 2.6 GW, below its highest peak of 2.6 GW over the past 1 day.
Sourced from: wem_operational_demand, wem_pulse.
Full interactive dashboard
Charts, historical trends, generation mix, the large-load pipeline, and region-specific alerts for Western Australia all live on the full dashboard.