The daily operating record.

A single, auditable view of the SWIS operating day: minimum registered demand, rooftop PV, the implied underlying load and the technology mix that remains online.

Resolution: 5-minute source data
Published layer: Daily aggregates
Primary source: AEMO WEM

Read the SWIS Rooftop Solar Atlas, 2026

Minimum operational demand

1813 MW

Peak rooftop PV

1350 MW

PV share at peak

38.9 %

Evening ramp

1378 MW

Daily operating record

Minimum operational demand

Metric

Selected day

20 July 2026

1813 MW

Operational demand measures registered generation only. Rooftop PV is joined as a separate AEMO series, keeping the system's behind-the-meter solar visible.

Underlying demand proxy

3474 MW

Operational demand plus rooftop PV at the rooftop-PV peak. A practical read of the grid load that solar is masking at the middle of the day.

Scheduled generation by technology

Gas34,121 MWh

Coal15,083 MWh

Other scheduled generation3,321 MWh

Wind2,754 MWh

Utility solar1,314 MWh

Battery discharge746 MWh

Method

Keep the rooftop solar outside the operational-demand line.

AEMO defines operational demand as injection from registered facilities. Rooftop PV is not inside that measure, so Solar Analytica joins AEMO's estimated distributed-PV series separately. The underlying-demand proxy is the sum at the rooftop-PV peak; it is not presented as a settlement demand measure.

Technology totals aggregate five-minute facility-SCADA quantities. The current classification separates coal, gas, wind, utility solar, battery discharge and other scheduled generation, with facility mappings versioned in the ingestion process.

Open AEMO WEM data service