Regional Guide: Solar Performance by State
Geography Dictates Performance
Australia is a continent-sized country with vastly different climate zones. A 6.6kW system produces very different financial returns depending on where you live.
Daily Average Production (6.6kW System)
- Brisbane & Darwin: 26 - 29 kWh/day. High production, but heat can degrade efficiency.
- Perth & Sydney: 24 - 26 kWh/day. Excellent balance of sun hours and moderate temperatures.
- Melbourne & Adelaide: 21 - 23 kWh/day. More variable weather, but high electricity prices make the savings still very attractive.
- Hobart: 18 - 20 kWh/day. Lower production, but panels actually operate very efficiently in the cooler air.
State-Specific Advice
Queensland & Northern Territory
Focus: Heat tolerance and cyclone ratings. Ensure your racking system is rated for your wind region (Region C or D for North QLD). Panels must be securely clamped.
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Victoria & Tasmania
Focus: Micro-inverters (like Enphase) or Optimizers. These technologies help manage shading from trees or clouds, which are more common issues here. They also allow each panel to work independently, squeezing out every bit of power on overcast days.
South Australia & WA
Focus: Grid stability features. These states have high solar penetration. You may face strict export limits (e.g., 5kW limit or dynamic export limits). A battery is highly recommended here to soak up the power you aren't allowed to send to the grid.
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