Fast Read
A typical solar panel installation quote in Brisbane for a 6.6kW system, the most popular size for homes, generally ranges from $5,000 to $8,500 after the federal rebate is applied. This price includes Tier-1 solar panels (from brands like Trina or Jinko), a 5kW string inverter (from a manufacturer like Sungrow), all mounting equipment, and full installation by a Solar Accreditation Australia (SAA) certified professional. The quote will also factor in the federal Small-scale Technology Certificate (STC) rebate, which can reduce the upfront cost by $2,000 to $2,500 for a 6.6kW system in Brisbane. Adding a battery like a Sungrow SBR or Tesla Powerwall 3 will significantly increase the cost, typically adding $9,000 to $14,000 for a 10-13.5kWh unit.
What’s included in a standard Brisbane solar panel installation quote
A standard solar panel installation quote in Brisbane is a comprehensive document outlining all the parts, labour, and associated services required to get a solar PV system safely installed and connected to the grid. From my analysis of dozens of system quotes, a good one leaves no room for ambiguity. It should clearly itemise the hardware, such as the exact brand and model of solar panels and the inverter, as well as all mounting hardware and electrical components. Labour costs, application fees for grid connection, and the deduction for the federal Small-scale Renewable Energy Scheme (SRES) rebate should also be transparently listed.
Common components of a Brisbane solar panel installation quote

When you receive a solar quote, it can feel overwhelming. To make it simple, I’ve broken down the key components you should always look for. A reputable installer will provide a detailed breakdown, ensuring you know exactly what you’re paying for.
Here are the critical items that must be clearly listed:
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System Size: Stated in kilowatts (kW), this is the total power capacity of your solar panels. A 6.6kW system is the most common residential choice in Brisbane.
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Solar Panels: The quote must specify the manufacturer, exact model number, and the number of panels to be installed. This allows you to verify the quality and warranty of the product.
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Inverter: This crucial device converts the DC electricity from your panels into AC electricity for your home. The quote should list the brand, model, and its power rating (e.g., 5kW inverter for a 6.6kW panel array).
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Mounting and Racking System: This is the framework that secures the panels to your roof. The quote should confirm it is compliant with Australian Standards (AS/NZS 1170.2 for wind loads) and suitable for your roof type.
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Installation and Labour: This covers the full cost of the physical installation by accredited electricians, including all electrical wiring, conduits, and safety switches.
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Monitoring System: Most modern inverters come with a monitoring app or web portal that allows you to track your system’s energy production in real-time.
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Grid Connection Application: Your installer handles the application process with the local electricity distributor, Energex, on your behalf. This fee is usually included in the total cost.
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Warranties: The quote should clearly state the warranty periods for the panels (performance and product), the inverter, and the installer’s workmanship.
| Component | Typical Specification/Warranty | Why It’s Important |
|---|---|---|
| Solar Panels | 25-year performance warranty, 15-25 year product warranty | Ensures long-term reliability and power output. Look for Tier-1 brands like REC, Trina, or Canadian Solar. |
| Inverter | 5-10 year standard warranty | The heart of your system. Premium brands like Fronius may cost more but offer proven reliability. |
| Workmanship | 5-10 year warranty | Covers any defects related to the installation itself, protecting you from leaks or electrical faults. |
| Accreditation | Installer must be SAA accredited | This is mandatory for the system to be eligible for the federal STC rebate and ensures high safety standards are met. |
Brisbane solar installation quote inclusions and exclusions
Understanding what is and isn’t covered is vital to avoid surprise costs. From my experience, the biggest discrepancies between quotes often hide in the fine print of the exclusions.
Common Inclusions:
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Full system design tailored to your roof and energy needs.
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Supply of all components (panels, inverter, mounting, wiring).
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Full installation and commissioning by a Solar Accreditation Australia (SAA) accredited team.
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Management of the Energex grid connection paperwork.
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The point-of-sale discount from the federal STC rebate.
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A certificate of electrical compliance upon completion.
Potential Exclusions (Always Check for These):
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Switchboard Upgrade: If your home’s switchboard is old or doesn’t meet current safety standards, it may need to be upgraded at an additional cost, often between $800 and $2,000.
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Meter Upgrade: Energex will need to replace your existing electricity meter with a smart or bi-directional meter to measure exported energy. This is organised by your electricity retailer and sometimes comes with a separate fee.
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Difficult Installations: Extra costs may apply for multi-storey homes, steeply pitched roofs, or properties with difficult access.
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Removal of Old Systems: If you are replacing an existing solar system, the cost to remove and dispose of the old components is not typically included.
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Pest Protection: Bird or pest proofing for the underside of your panels is usually an optional extra.
Case Study: A Family in The Gap The Kumar family was facing quarterly power bills of over $600. They installed a 6.6kW system with Trina panels and a 10kWh Sungrow battery for a total cost of $15,500. After the federal battery rebate, their outlay was closer to $11,500. Their annual savings are now over $2,200, putting them on track for a payback period of just over 5 years, and their last bill was only the daily grid connection fee.
What to expect in a Brisbane solar panel installation contract

Once you accept a quote, it becomes part of a formal contract or sales agreement. This document is your legal protection, so it’s essential to read it carefully. A common mistake I see homeowners make is skimming this document and missing key details.
The contract should formalise everything discussed in the quote and provide a clear timeline for the project. According to Solar Accreditation Australia, the contract must be clear, fair, and adhere to all consumer protection laws.
What’s typically included in a Brisbane solar panel installation contract
A compliant and trustworthy contract will always contain the following elements:
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Full System Specifications: A final, detailed list of all components, including make and model numbers for panels and inverters.
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Total Price and Payment Schedule: The final, GST-inclusive price, along with a clear schedule for the deposit, progress payments, and the final payment upon commissioning.
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Estimated Timelines: An estimated start date for the installation and a projected completion date. Delays can happen, but a professional company will provide a reasonable timeframe.
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Performance Estimates: The contract should include a performance estimate, showing how much energy (in kWh) the system is expected to generate annually.
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Responsibilities: It should clearly outline your responsibilities (like ensuring clear roof access) and the installer’s responsibilities (like site clean-up and submitting all necessary paperwork).
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Cancellation Policy and Cooling-Off Period: Details on your rights to cancel the contract and any associated fees.
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Complaint Resolution Process: A clear process for how to handle any disputes or issues that may arise during or after the installation.
Gigi’s Pro Tip: Before signing, double-check that the SAA accreditation number of the lead installer is listed in the contract. You can verify their accreditation on the official SAA website. This is a critical step to ensure your installation is eligible for rebates and meets Australian standards.
Navigating the world of solar quotes can be complex, but by understanding these key components, you can make a confident and informed decision for your Brisbane home. If you’d like help cutting through the jargon, I can connect you with a trusted local expert who can provide a clear, no-obligation quote tailored to your needs. Just fill out the form below to get started.