The average solar panel system size in Australia is around 6.6 kilowatts (kW). However, system sizes can vary based on household energy needs, available roof space, and budget constraints.

Most solar panels have an efficiency rate of 15-22%. High-end panels can achieve efficiencies over 22%, but these are generally more expensive.

In Australia, a 6.6 kW solar panel system can generate approximately 20 to 33 kilowatt-hours (kWh) per day, depending on location, roof orientation, roof angle, shading issues and weather conditions.

The 6.6 kW, 10Kw and 13kw systems are very popular in Australia for residential premises. These sizes typically suits most families.

Most residential solar panels measure about 1.7 meters tall by 1 meter wide, covering an area of roughly 1.7 square meters. However, sizes can vary slightly between manufacturers.

A 6.6 kW system usually consists of 15 panels, each with a capacity of about 440W watts, which is the most common capacity being used in residential premises.

Solar panels typically weigh between 18-22 kilograms each. Always consult with a professional installer to ensure your roof can support the additional weight.

The average payback period for a solar power system in Australia ranges from 3 to 6 years, depending on energy consumption patterns and local electricity rates.

Yes, Australia offers several incentives, including the Small-scale Renewable Energy Scheme (SRES), which provides Small-scale Technology Certificates (STCs). Some states also offer additional rebates and feed-in tariffs.