Cairns enjoys high sunlight hours, averaging 5.0 kWh/m²/day, so panel output averages ≈ 4.0 kWh per installed kW daily:
| System size | Avg. kWh / day | Avg. kWh / year |
|---|---|---|
| 3 kW | ~12 | ~4,400 |
| 5 kW | ~20 | ~7,300 |
| 6.6 kW | ~26 | ~9,500 |
| 10 kW | ~40 | ~14,600 |
Even during winter, a 6.6 kW system will still produce ≈ 18–20 kWh per day on average. With Cairns’ ample sunshine, your system will meet or exceed performance targets year-round.

