40.6% average rooftop-PV share at its daily peak and a 0.7x evening-ramp ratio put flexibility at the centre of the isolated-grid result.
This is a relative evidence screen, not a forecast, valuation or investment recommendation. Scores identify questions worth deeper local diligence.
Score construction
Evening ramp / minimum demand
AEMO WEM
Average evening operational-demand ramp divided by minimum demand. Source
Rooftop PV share at peak
AEMO WEM
Average rooftop PV share of the underlying-demand proxy in the retained window. Source
Detected SWIS events
Solar Analytica event ledger
Record-demand, rooftop-PV and ramp events retained for the isolated system. Source
| Measure | Value | Window | Source |
|---|---|---|---|
| Rooftop PV share at peak | 40.6% | 90 operating days | AEMO WEM |
| Evening ramp ratio | 0.7x | 90 operating days | AEMO WEM |
| Solar generation share | 19.7% | 2025 | Ember Electricity Data |
| Variable renewable share | 33.4% | 2025 | Ember Electricity Data |
| Solar-share change | 1.9 pp/year | 2016-2025 | Ember Electricity Data |
Detected SWIS events
Solar Analytica event ledger
Record-demand, rooftop-PV and ramp events retained for the isolated system. Source
Evening ramp / minimum demand
AEMO WEM
Average evening operational-demand ramp divided by minimum demand. Source
Rooftop PV share at peak
AEMO WEM
Average rooftop PV share of the underlying-demand proxy in the retained window. Source