12 June 2024
solar panels cost in perth

Switching to solar energy is a smart move for many households and businesses in Perth, offering significant savings on electricity bills and a positive environmental impact. However, understanding the cost of solar panels is crucial before making an investment. This blog aims to break down the various factors affecting solar panels cost in Perth and provide a comprehensive guide to help you make an informed decision.

Cost of solar Panels Perth

In 2024, the most commonly installed solar panel system in Perth is a 6.6 kW system. A high-quality 6.6 kW solar system in Perth typically costs between $6,000 and $8,500. The final price largely depends on the panels and inverter you select. Opting for a European-made inverter can add approximately $800 to the overall cost.

Is it a Good Idea to Get Solar Panels in Perth?

Yes, it is a good idea to install solar panels system in Perth. As Perth enjoys a high level of solar radiation, with an average of around 8 hours of sunshine per day. This makes it one of the sunniest cities in Australia, providing ideal conditions for solar energy production. More sunshine means more energy generation and higher savings on electricity bills.

Factors Influencing Solar Panels Cost

System Size

The size of the solar panel system you choose significantly impacts the overall cost. Small systems (1.5 kW – 3 kW) are typically suitable for small homes with minimal energy needs and cost between $2,500 and $4,500. Medium systems (4 kW – 6 kW), which are ideal for average households, range from $4,000 to $7,000. Large systems (7 kW – 10 kW+), suited for high energy consumption households or large homes, can cost between $7,000 and $12,000 or more.

Quality of Solar Panels

The quality and brand of the solar panels also affect the price. Entry-level panels are more affordable but may have lower efficiency and shorter warranties, with costs ranging from $3,500 to $6,000 for a 5 kW system. Mid-range panels, which offer a balance between cost and performance, usually cost between $5,000 and $8,000 for the same size system. Premium solar panels, known for high efficiency and long warranties, can cost from $6,000 to $10,000+ for a 5 kW system.

Inverter Quality

The inverter is a critical component of the solar power system, converting DC electricity generated by the panels into AC electricity used in homes. String inverters are common and cost-effective, ranging from $1,000 to $2,000. Microinverters, which offer higher efficiency but at a higher cost, range from $2,000 to $3,000. Hybrid inverters, which combine solar and battery storage capabilities, cost between $2,000 and $4,000.

Government Incentives and Rebates

In Perth, several incentives can reduce the overall cost of solar panel systems. The federal government’s Small-scale Renewable Energy Scheme (SRES) provides Small-scale Technology Certificates (STCs) that can significantly lower the upfront cost. Additionally, the state government may offer rebates and incentives, which vary over time, so it’s essential to check current programs when planning your installation.

Return on Investment

Investing in solar panels can lead to significant savings on electricity bills. On average, a 5 kW system in Perth can save households between $1,000 and $1,500 per year, depending on energy usage and tariff rates. With the average payback period ranging from 3 to 5 years, the long-term savings can be substantial, especially with rising electricity prices.

Choosing the Right Installer

Selecting a reputable and experienced installer is crucial for ensuring the quality and efficiency of your solar power system. Look for Clean Energy Council (CEC) accredited installers and read reviews from previous customers. Getting multiple quotes can also help you compare prices and services to find the best deal.

Energy Savings

Investing in solar panels can lead to substantial savings on your electricity bills. The average Perth household can save between $1,000 and $2,000 annually by switching to solar, depending on the system size and household energy usage.

Return on Investment (ROI)

The ROI for solar panels in Perth is generally favorable, with most systems paying for themselves within 3 to 7 years through energy savings. Premium systems may have a higher upfront cost but often come with better performance warranties and longer lifespans, potentially offering greater long-term savings.


The solar panels cost in Perth varies based on system size, panel and inverter quality, and installation complexity. While the initial investment can be significant, government incentives and long-term savings on electricity bills make solar power a worthwhile investment. By understanding these factors and choosing a reputable installer, you can make an informed decision and enjoy the benefits of solar energy for years to come.

Also read:

Sunpower Solar Panels Price Australia

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