A 5kW solar system is a popular choice for many Brisbane homeowners seeking to reduce electricity bills and adopt sustainable energy. The 5kW solar system price in Brisbane can vary depending on several factors, including the quality of the solar panels, inverter, installation costs, and government incentives. On average, a 5kW solar system price in Brisbane ranges from $4,500 to $8,000. This system is ideal for medium-sized households, providing approximately 20 kWh of electricity per day, depending on local weather conditions. By harnessing the abundant sunshine in Brisbane, this investment can significantly lower energy bills and carbon footprint over time.