Considering solar power for your Australian home or business is a wise decision. However, with new solar panel prices fluctuating, the allure of used solar panels in the Australian market can be strong. Are these pre-loved panels a genuine bargain, or are there hidden costs that outweigh the initial savings?
This comprehensive guide from Energy Matters explores the pros, cons, and key considerations for anyone considering second-hand solar panels in Australia. Make an informed decision today with Energy Matters and power your future sustainably.
The appeal of pre-loved photovoltaics: What are second-hand solar panels?
Second-hand solar panels are previously used panels that have been removed from residential, industrial, or commercial solar power installations. These can include:
- Refurbished solar panels: Panels tested, repaired, and certified for resale.
- Decommissioned panels: These are panels that have been removed during system upgrades but may still be functional.
- Excess stock or factory seconds: Unused panels sold at a discount due to overstocking or minor cosmetic flaws.
With the right source, used solar panels in Australia can offer significant cost savings, but they come with important caveats.
Benefits of buying used solar panels in Australia
1. Lower upfront costs
Second-hand solar panels are typically much cheaper than brand-new ones. Homeowners with tight budgets may find refurbished solar panels an affordable entry point into renewable energy.
2. Environmentally friendly choice
Purchasing used solar panels in Australia supports sustainability by reducing electronic waste and extending the lifecycle of existing equipment.
3. Suitable for low-power applications
If you need panels for non-critical uses—such as powering sheds, boats, or farms—refurbished solar panels can be a cost-effective solution that doesn’t require full efficiency.
Risks and drawbacks of using solar panels in Australia
1. Warranty woes: A major consideration
Most second-hand solar panels have expired warranties, leaving you financially responsible if they fail.
New solar panels come with two main types of warranties: product warranties (covering defects) and performance warranties (guaranteeing power output). Second-hand panels rarely come with transferable manufacturer warranties. Any issues that arise will likely be at your own expense.
Some reputable suppliers of refurbished solar panels may offer their own limited warranties. Always clarify the terms and conditions of any warranty before making a purchase. A robust warranty provides peace of mind and protection for your investment.
2. Understanding solar panel degradation: A critical factor
Solar panels naturally lose efficiency over time. Used panels may deliver lower output, especially if they’re over 5–10 years old.
Solar panels degrade naturally over time, losing a small percentage of their efficiency each year. This is a normal process, but the rate of degradation can vary based on panel quality, manufacturing processes, and environmental exposure. When considering used solar panels in Australia, understanding their age and estimated degradation rate is paramount.
Request detailed performance reports or historical data, if available. This information can provide a clearer picture of how much life and efficiency the panels truly have left. A visual inspection can also reveal signs of excessive wear and tear, such as delamination, cracks, or discolouration.
3. Hidden damage and shorter lifespan
Exposure to extreme weather conditions can cause micro-cracks and internal damage. Without proper testing, this may result in premature failure.
Key considerations before buying refurbished solar panels
1. Understand your energy needs
For full-home solar systems, new panels with warranties offer better long-term reliability. Used solar panels may be ideal for smaller, off-grid projects.
2. Check the source: Sourcing second-hand solar panels responsibly
Buy only from reputable suppliers who provide performance test results. Certified refurbished solar panels in Australia undergo rigorous quality checks.
Where you source your second-hand panels can significantly impact their quality and reliability. Avoid unverified sellers or online marketplaces without clear return policies. Reputable solar installers or specialised second-hand solar equipment providers are generally safer options.
These providers often test panels for performance and may offer installation services with their own limited guarantees. Always request documentation, including original purchase receipts or specifications, to verify the authenticity and history of the panels. Don’t rush into a purchase; due diligence is key.
3. Evaluate the age and brand
Premium solar panel brands retain performance longer. Avoid panels older than 8–10 years, unless recent performance tests are available to accompany them.
4. Solar inverters: The heart of your solar system
Often overlooked when focusing solely on panels, the inverter is a crucial component of any solar system. It converts the DC electricity generated by the panels into AC electricity usable by your home. If you’re considering a second-hand system, the inverter’s age and condition are just as important as the panels’.
An older inverter may be less efficient, less reliable, or lack modern features such as smart monitoring. Factor in the potential cost of replacing an aging inverter when calculating the actual cost of a second-hand system. A new, high-quality inverter can significantly enhance the performance and longevity of your solar setup.
Check our page for our recommended solar panel and inverter products.
Are refurbished solar panels right for you?
Used solar panels in Australia can be a smart choice in specific situations:
- Budget-conscious buyers want to start small.
- DIY enthusiasts looking for off-grid solutions.
- Eco-conscious consumers focused on reusing materials.
However, if your goal is to maximise long-term savings and reliability, investing in a new, warrantied solar system may be more cost-effective.
How to ensure a safe purchase of second-hand solar panels
- Ask for performance certification: Verify efficiency and safety through independent testing reports.
- Inspect for visible damage: Look for cracks, corrosion, or burn marks.
- Check compatibility: Ensure the panels are compatible with your inverter and mounting system.
- Seek expert advice: A professional solar installer can assess whether refurbished solar panels are suitable for your needs.
Weighing the options for your Australian home
Second-hand solar panels can offer a cost-effective entry point into renewable energy for some Australian households. However, they come with inherent risks regarding performance, warranty, and potential hidden costs. Thorough research, professional assessment, and a clear understanding of your long-term energy goals are essential.
For most, the peace of mind, guaranteed performance, and comprehensive warranties of new solar panels present a more reliable and ultimately more rewarding investment. Ready to explore your solar options?
Going solar with confidence
Energy Matters is here to guide you every step of the way. We help Australian home and business owners receive personalised solar quotes through our large network of high-quality solar installers. We only work with reputable solar companies that have a proven track record of delivering high-quality solar systems.
Let Energy Matters help you harness the sun’s power for a greener tomorrow. Explore the range of solar landscape lighting, garden solar systems, and eco-friendly products at our Energy Matters Marketplace, which features solar panels, energy storage solutions, and energy-efficient appliances. Start your journey towards a more sustainable and eco-friendly outdoor living experience today.
Upgrade your solar system without sending your old solar panels to the landfill
If you decide to upgrade your solar system, Second Life Solar will cover the cost of removing your old panels. Thanks to our partnerships with the CSIRO, the NSW Environment Protection Authority, and Energy Matters, we are pleased to offer current solar consumers an alternative.
