Rooftop solar power systems are a popular choice for homeowners in Perth, Western Australia, due to the region's abundant sunshine and the government's support for renewable energy. Installing a solar power system allows you to generate clean electricity, reduce your reliance on the grid, and potentially save on your energy bills. Here's some information about rooftop solar power system installation in Perth, as well as approximate pricing:


  1. System Size: The size of the solar power system is typically measured in kilowatts (kW). The size you choose depends on factors such as your energy consumption, available roof space, and budget. A typical residential Solar Power installation in Perth ranges from 3 kW to 10 kW.
  2. Solar Panels: The solar panels, also known as photovoltaic (PV) panels, capture sunlight and convert it into electricity. The cost of solar panels can vary depending on the brand, efficiency, and warranty. In Perth, you can expect to find good-quality solar panels at a cost of around AUD $1.00 to $1.50 per watt.
  3. Inverter: The inverter is an essential component of a solar power system. It converts the direct current (DC) electricity generated by the panels into alternating current (AC) electricity that can be used in your home. The price of inverters can range from AUD $500 to $2,000, depending on the type and capacity.
  4. Mounting and Wiring: The installation also involves mounting the panels on your roof and wiring them together. The cost of mounting and wiring will depend on factors such as the complexity of the installation, the type of roof, and the number of panels. On average, you can expect to spend around AUD $500 to $1,500 for mounting and wiring.
  5. Additional Components: Depending on your specific requirements and preferences, you may need additional components such as a solar battery storage system, monitoring equipment, or a solar hot water system. These additional components can increase the overall cost of the installation.
  6. Installation Labor: The labor cost for the installation will depend on the size and complexity of the system, as well as the installer you choose. On average, installation labor costs can range from AUD $1,000 to $3,000.
  7. Government Incentives: It's important to note that in Perth, and throughout Australia, there are various government incentives and rebates available for installing solar power systems. These incentives can help offset the installation cost and provide additional financial benefits. Make sure to check the latest government schemes and rebates to take full advantage of the available support.


Overall, the total cost of installing a rooftop solar power system in Perth can vary significantly depending on the system size, quality of components, additional features, and installation labor. As a rough estimate, for a standard 5 kW system, you can expect to invest between AUD $5,000 and $12,000. However, it's recommended to obtain quotes from multiple installers and discuss your specific requirements to get accurate pricing information.