Solar prices can feel confusing because two quotes can look far apart, even for the same system size. The difference is usually not “markup.” It is the quality of equipment, the complexity of the roof, approvals, and the size of the system that affect your bills and WA export regulations.
This guide will help you know the common costs and perks, the factors that contribute to the end price, and a basic checklist that would help you to compare quotes with confidence.
For many homes, a common benchmark is a 6.6 kW solar system. In Perth, Solar Choice reports city averages around $4,750 for a 6.6 kW system in 2025 (after rebates), with typical pricing in most states around $4,500 to $6,000 after rebates.
For larger systems, SolarQuotes reports that a 10 kW solar system averaged around $10,000 fully installed based on prices paid by Australians they surveyed.
Now the important part. “Typical” does not mean “premium.” Middle Swan Solar positions itself as a high-end solar installer and provides its solar installations starting from $8,000, which represents high-quality products and services.
A solar quote is not just about panels. It is a full electrical project with long-term performance on the line. The price changes based on:
If you compare quotes, compare like-for-like equipment and scope, not just the final number.
WA policy guidance explains that systems larger than 5 kVA can be subject to an export limit of 1.5 kW unless there is an off-take agreement with the customer’s retailer.
That makes one thing very important: self-consumption. Your system should be designed so that you use more of your solar at home, instead of relying on export credits.
If you are comparing installers, understand what you are buying. Middle Swan Solar states it focuses on premium solar, batteries, and inverters, and lists premium brands across each category.
They also note service coverage between Perth and a strong presence in the Perth Hills.
Solar pricing also reflects how smoothly your project can move from quote to activation.
Western Power explains that solar systems include multiple components that must be approved for safe grid connection.
Synergy states that the solar PV or battery application, installation, and connection process can take up to three months, depending on approvals, product availability, and other factors.
A typical process looks like this:
Solar is not a one-price product. The best value comes from a system that fits your roof, your bills, and WA connection rules, using equipment that holds up long-term.
If you want a premium solar system designed for performance and reliability, request a quote from Middle Swan Solar.
