8 Best Solar Panels in Australia

8 Best Solar Panels in Australia: Honest Performance Tests & Prices

With electricity prices climbing and a growing shift toward sustainable energy, more Australians than ever are making the switch to solar power. But, finding the right solar panels in Australia feels like looking for a needle in a haystack. With over 8,500 options and 150 brands, where do you even start?

The answer isn’t as simple as picking from a catalogue and booking an installation. There’s a lot to consider – from pricing and warranties to efficiency, durability, and how well a panel performs in our climate. Plus, with new brands constantly entering the market, there are more and more to choose from every year.

Take Aiko Solar, for example, a new brand on the market that recently claimed the 2025 SolarQuotes Installers’ Choice Awards, outperforming some of the big names in the industry. Their panels offer a great balance of affordability and performance—an attractive choice for those looking for an affordable entry point without compromising quality.

At SAE Group, we know how overwhelming it can get to find a solution with limited time, technical knowledge, or confidence in knowing which brand to trust. In this guide, we’ll walk you through the best solar panels available in Australia right now, what makes them stand out, and how to choose the right system for your needs.

1.    SunPower Maxeon 6

The SunPower is Maxeon’s flagship solar panel offering exceptional performance, even in the toughest conditions. For homeowners who want maximum efficiency, reliability, and long-term value the SunPower Maxeon 6 is a serious contender.

Efficiency

With an impressive 22.8% efficiency rating, the Maxeon 6 is one of the most efficient residential solar panels on the market. It uses advanced N-type silicon and anti-reflective glass to capture more sunlight and turn it into usable energy. This means more power for your home from the same amount of roof space.

With a power temperature coefficient of just -0.29%/°C, they outperform typical panels during hot Australian summers. They also handle shade well, losing up to 2.5% less power than HJT technology panels when partially covered.

Compared to competitors, you’ll notice better energy production:

•         During early mornings and late afternoons
•         On overcast or cloudy days
•         In high-temperature environments

Warranty Coverage

One of the biggest selling points of the Maxeon 6 is its industry-leading 40-year warranty – one of the longest and most comprehensive available that covers both performance and product quality.

Here’s what you get:

•         98% minimum power output in the first year
•         Coverage for materials and workmanship
•         Labour, removal, shipping, and reinstallation included for warranty claims

Just note: to receive the full 40-year warranty, you’ll need to register your panels digitally within 6 months and use an authorised installer. Otherwise, the coverage reverts to a still-generous 25 years.

Degradation

It is suggested that Maxeon 6 panels degrade at just 0.25% per year, which means after 40 years, they’ll still produce around 88.25% of their original output. This means more energy (and more savings) for longer.

In a study of over 800,000 panels across 264 sites, these panels have shown they degrade four times more slowly than standard panels. On average, that adds up to around 35% more energy over 25 years compared to conventional options.

And, when it comes to durability, out of more than 20,000 panels studied, only 0.005% experienced issues under warranty.

Pricing

With it’s cutting-edge technology and long-term reliability, the Maxeon 6 panels do sit at the premium end of the market. At around AUD 6.12 per watt, they cost about 20% more than typical tier-one monocrystalline panels (approx. AUD 5.09 per watt).

Ideal For

•         Have limited roof space and need maximum output
•         Want long-term value and performance
•         Live in areas with high heat or shading challenges
•         Are looking for the best of the best in solar

2.    REC TwinPeak 5

The REC TwinPeak 5 is the fifth-generation panel in REC’s award-winning TwinPeak series, offering a strong balance of performance, reliability, and value. Engineered in Norway and now widely used in Australia, it’s a solid mid-range option for both businesses and homeowners.

Efficiency

The REC TwinPeak 5 delivers efficiency ratings between 20.1% and 20.8%, using p-type monocrystalline cells and half-cut technology.

Its unique twin-panel layout allows energy production to continue even when partially shaded, while also improving power output and reducing electrical resistance. The temperature coefficient sits at -0.34%/°C, which means a 7% efficiency loss at 45°C, which is reasonable for Australian summer conditions.

Warranty

REC offers two levels of warranty coverage:

•         Standard: 20-year product warranty and 25-year performance warranty.
•         REC Certified Installers: 25-year product, performance, and labour warranty (ProTrust package).

Most Australian installers are certified, so homeowners typically receive the full 25-year coverage, including labour costs for warranty-related work on systems under 25kW.

Degradation Rate

REC TwinPeak 5 panels are rated for:

•         98% power output in year 1
•         0.5% annual degradation from years 2 to 25
•         86% minimum performance after 25 years

The panels are built to resist Potential Induced Degradation (PID), a loss in performance caused by voltage stress, and Light Induced Degradation (LID), which refers to the initial efficiency drop some panels experience when first exposed to sunlight.

Pricing

These panels fall in the mid-to-upper price range in Australia. Costs will vary depending on system size, location, inverter pairing, and installer. Overall, they offer a reliable choice for households looking to balance performance, warranty, and cost.

3.    Jinko Tiger Neo

The Jinko Tiger Neo series is among the most efficient solar panels available in Australia. These panels combine high output, strong warranties, and excellent heat performance—making them a solid choice for both residential and utility-scale solar systems.

Efficiency

Tiger Neo panels reach up to 24.8% efficiency, placing them at the top end of the market. The latest range includes:

•         Tiger Neo DG: Up to 495W output, ideal for home rooftops
•         Tiger Neo Utility: Up to 670W, suited to commercial and large-scale installations

Many Tiger Neo models feature bifacial designs, which means the panels can generate electricity from both the front and the rear sides. The rear side captures reflected sunlight from surfaces like rooftops or the ground, adding to the total energy output.

With a high bifacial factor of 85%, these panels can produce significantly more power than standard monofacial panels. And, combined with a low temperature coefficient of -0.29%/°C, they’re well-suited to Australia’s hot climate, maintaining efficiency even in extreme heat.

Warranty

Warranty coverage is strong and competitive. Most residential Tiger Neo models sold in Australia include:

•         A 25-year product warranty covering manufacturing defects
•         A 30-year linear power output warranty, guaranteeing sustained performance

Note that some models may include a 20-year product warranty based on region and model. It’s important to confirm the exact terms with your installer.

Degradation Rate

Jinko’s use of high-purity N-type cells gives the Tiger Neo panels a low degradation rate, ensuring stable performance over time:

•         1% power loss in the first year
•         0.4% annual degradation over the next 29 years
•         Guarantees at least 87.4% output after 30 years

The inclusion of Hot 2.0 Technology that enhances cell structure and stability, also reduces common issues like LID (Light-Induced Degradation) and LETID (Light and Elevated Temperature-Induced Degradation), helping the panels stay more efficient for longer.

Pricing

Tiger Neo panels offer a strong balance between performance and cost. They fall into the mid-range price category but deliver premium-level efficiency, modern technology, and extended warranties. This makes them an appealing option for homeowners who want high output without the premium price tag.

4.    Aiko Neostar 2S

The Aiko Neostar 2S has is quickly gained traction in the Australian solar market, offering cutting-edge technology, high efficiency, and long-term reliability, at a pretty competitive price point. Featuring innovative All-Back-Contact (ABC) cell technology, these panels stand out for their sleek design and powerful performance.

Efficiency

With efficiency ratings ranging from 22.8% to 23.6%, the Neostar 2S is among the most efficient solar panels available in Australia. Built using advanced N-Type ABC cells in a 108-cell (6×18) format, the panel delivers more energy per square metre which make them ideal for rooftops with limited space.

Its low temperature coefficient of -0.26%/°C means less power is lost on hot days, allowing for better performance in Australia’s high-heat conditions.

Warranty

Aiko backs the Neostar 2S with a strong warranty offering:

•         25-year product warranty covering defects in materials and workmanship
•         30-year performance warranty, guaranteeing long-term energy production

Coverage starts 30 days after delivery or 90 days after shipment (whichever comes first), providing peace of mind from day one.

Degradation

These panels are built to last, with minimal power loss over time:

•         ≤1% power loss in the first year
•         ≤0.35% annual degradation from years 2 to 30
•         90.6% output retained after 25 years
•         88.85% output retained after 30 years

This means you’ll continue to see strong performance and reliable returns well into the future.

Extra Features & Price Point

Pricing starts at around AUD $443 (including tax) for a 455W panel. Higher prices listed elsewhere may include installation or additional system components.

The Aiko Neostar 2S offers other practical features that enhance its value:

•         Optimised for partial shading
•         High resistance to micro-cracks
•         Sleek black anodised aluminium frame
•         IP68-rated junction box with dual bypass diodes for better safety and durability

5.    Winaico Gemini

Manufactured in Taiwan and built to withstand extreme conditions, Winaico Gemini solar panels have undergone testing three times beyond IEC standards, ensuring they are well-equipped to perform in Australia’s tough climate. These high-performance panels are designed for longevity and efficiency, offering a solid investment for homeowners.

Efficiency

The Gemini series offers efficiency ratings between 20.34% and 20.93%. These monocrystalline panels come in multiple models to suit different energy needs:

•         WST-410MGX – 410W nominal power
•         WST-375MG – 20.62% efficiency
•         WSP-333MG – 20.27% efficiency

Built with nine busbar half-cut cell technology and reflective wires, these panels reduce internal resistance and boost overall energy yield.

•         Nine Busbars: The metal contacts that connect the solar cells within a panel, allowing the electricity generated by the cells to be collected and transferred. Traditional solar panels typically use fewer busbars (usually 3 or 5), but panels with nine busbars provide more contact points across the cells, which reduces internal resistance and increases current flow.
•         Half-Cut Cells: Traditional solar panels are made with full-sized solar cells. However, half-cut cells is where each solar cell is cut in half, creating two smaller cells. This approach reduces internal power loss, as the current flow is split across smaller, more efficient cells.

They also handle extreme temperatures, from -40°C to +85°C, with a temperature coefficient of -0.35%/°C, helping maintain output even on scorching summer days.

Warranty & Insurance

Winaico also offers one of the most comprehensive coverage packages on the market:

•         25-year product warranty against manufacturing defects
•         25-year linear performance warranty
•         2-year free all-risk insurance—covering accidental damage, service interruptions, and yield loss

With only 0.01% warranty claims out of 130MW of installed panels in Australia, and a Sydney-based support team that processes claims within a week, Winaico delivers both quality and peace of mind.

Power Retention

Winaico Gemini solar panels are engineered with long-term performance in mind. With their exceptional durability and reliability, these panels offer impressive longevity, making them a smart investment for homeowners looking for consistent power generation over the years.

•         Max 2% power loss in the first year
•         Only 0.53% annual degradation from years 2 to 25
•         Guaranteed 85.28% power output after 25 years

This enhanced degradation rate is a significant improvement over previous models. Compared to their earlier warranty offering, these panels retain over 5% more power after 25 years, providing even greater value and durability.

Pricing

As a mid-premium solar panel, Winaico Gemini panels offer an excellent balance of affordability and quality. While not the cheapest on the market, they provide long-term value through durability, strong performance, and unmatched support.

6.    Trina Vertex S+

The Trina Vertex S+ is a powerhouse in the solar panel market, incorporating cutting-edge N-Type TOPCon cell technology and a double-glass design, ensuring that the panel delivers exceptional performance, even in the toughest conditions.

Efficiency

The Trina Vertex S+ achieves impressive module efficiency ratings up to 22.5%. The panel is capable of producing up to 450W of power, thanks to its high-density interconnect technology and multi-busbar setup. These design elements work together to boost energy output, providing more power per panel.

Key features include:

•         Multiple busbars: These enhance light capture and reduce series resistance, improving efficiency.
•         High-density cells: Maximising power production, these cells ensure that the panel generates more energy from the same amount of sunlight.
•         Double-glass construction: Unlike conventional panels that use a single glass sheet, the Vertex S+ features two layers of toughened 1.6mm glass, improving durability and capturing ground-reflected light to increase efficiency.

This advanced design makes the Trina Vertex S+ a standout choice for both residential and commercial solar systems in Australia, offering more power and longer-lasting performance.

Warranty

Trina Solar offers comprehensive warranty coverage, including:

•         25-year product warranty: Covers materials and workmanship defects
•         30-year performance warranty: Guarantees the longevity and efficiency of the panel

Degradation

The Trina Vertex S+ offers excellent stability over time with a minimal degradation rate:

•         First-year power loss: Maximum 1% loss in the first year ensures strong initial performance.
•         Annual degradation rate: Only 0.40% per year after the first year, meaning the panels will maintain high efficiency for decades.
•         Guaranteed output after 30 years: The panel is guaranteed to produce at least 87.4% of its original output after 30 years, ensuring long-term power generation and reliability.

This low degradation rate is a result of the high-purity N-type cell substrate, which uses phosphorus-doped silicon to reduce impurities and electron recombination. This significantly lowers power loss over time compared to traditional panels, ensuring better performance and efficiency throughout the panel’s lifespan.

Pricing

The Trina Vertex S+ is considered a mid-range solar panel in Australia, offering excellent value when considering its high efficiency, long warranty, and robust design. However, prices vary based on model and seller.

7.    REC Alpha Pure

The REC Alpha Pure series stands as a prime example of sustainable technology. Manufactured without lead or toxic fluorides, these panels deliver top-tier performance while reducing environmental impact.

Efficiency

The REC Alpha Pure panels boast impressive efficiency ratings ranging from 21.1% to 22.2%. This high performance is driven by the advanced Heterojunction Technology (HJT) cells and a gapless cell layout that maximises the active area of the panel, providing more power with less space.

Designed with Australia’s climate in mind, the Alpha Pure panels perform optimally even in hot summer temperatures.

Key performance features include:

•         Higher power density: 222 watts/m², with panel power reaching up to 410W.
•         No Light-Induced Degradation (LID): You get the full power you paid for, without the drop in performance typically seen in many panels.
•         Excellent shade tolerance: These panels continue to produce energy even when partially shaded, making them versatile in various installation conditions.

Warranty

With the REC Alpha Pure series, you can rest easy knowing your investment is protected by a solid warranty package. The standard warranty covers:

•         Product Warranty: 20 years for standard installations, or 25 years when installed by a REC Certified Solar Professional under the REC ProTrust Package.
•         Performance Warranty: 25 years, ensuring the panels will perform at high capacity for decades.
•         Labour Warranty: Up to 25 years under the ProTrust Package.

Degradation

The Alpha Pure panels shine with one of the best degradation rates in the industry. They experience a minimal annual degradation rate of 0.25% after the first year, capping at just 2% after 25 years. In comparison to the industry standard, this guarantees your system will continue to generate power at an efficient rate for much longer.

• 25-Year Power Retention: After 25 years, your panels will maintain at least 92% of their original output, ensuring long-term energy production and greater returns on your investment.

Pricing

While not the cheapest option on the market, the Alpha Pure panels offer a fantastic balance of high efficiency, low degradation, and strong warranty protection. Considered mid-premium, these panels are typically priced between $397 and $443 per panel, depending on the model and wattage. A complete 410W–430W system installation sits comfortably in the mid-range, offering exceptional value for homeowners looking for long-term reliability and sustainable performance.

8.    JA Solar Deep Blue 4.0

As one of China’s largest and most trusted solar manufacturers, JA Solar’s Deep Blue 4.0 combines cutting-edge N-type TOPCon technology (an advanced cell design that boosts efficiency, lowers degradation, and performs better in heat) with proven manufacturing expertise to deliver high-efficiency performance, long-term reliability, and exceptional value for both residential and commercial solar systems.

Efficiency

The Deep Blue 4.0 panels deliver impressive efficiency ratings between 21.8% and 23%, with residential models producing up to 460W of power. For those seeking even higher output, the Deep Blue 4.0 Pro version offers up to 650W of output and 23.3% module efficiency, putting it on par with the top performers in the market.

•         N-type TOPCon technology for increased efficiency and durability
•         Lower temperature coefficient (-0.30%/°C) for stronger hot-weather performance
•         High bifacial gain potential (up to 85%) in select models
•         Superior low-light performance, ideal for early mornings, cloudy days, and shaded roofs

Warranty

Warranty coverage varies across the series, but typically includes:

•         Deep Blue 4.0 Pro: 25-year product warranty + 30-year performance warranty
•         Deep Blue 3.0 Light (standard models): 12-year product warranty + 30-year performance warranty

Degradation

JA Solar Deep Blue 4.0 panels are engineered with longevity in mind, offering some of the best degradation rates in the industry:

• First-year degradation: ≤1%
• Annual degradation (years 2–30): ≤0.4%
• Guaranteed minimum output after 30 years: 87.4% of original capacity

This outstanding durability is thanks to the panel’s high-purity N-type cell structure. Unlike standard P-type cells, N-type cells are far more resistant to light-induced degradation (LID), which means the panels lose less efficiency over time, even under harsh sunlight.

Pricing

JA Solar’s Deep Blue 4.0 panels are priced at around AUD $4.45 per watt, offering one of the best performance-to-cost ratios. For homeowners seeking strong long-term value, the Deep Blue 4.0 Pro is particularly appealing thanks to its enhanced warranty and superior efficiency.

Key Factors to Consider When Choosing Solar Panels in Australia

While an important consideration, choosing the right solar panels involves more than simply picking the cheapest option. Ultimately, it’s about finding the best value over time—balancing efficiency, reliability, and affordability to suit your energy needs and budget. Here’s what to keep in mind:

1. Efficiency vs. Affordability

Solar has become incredibly cost-effective, with prices dropping over 90% since 2010! In fact, it’s now the most economical form of new electricity generation in Australia. For example, a 10kW system in New South Wales can save you over AUD 5,000 per year.

That said, not all panels are created equal. High-efficiency N-type panels (uses higher-purity silicon) offer exceptional performance but come at a higher cost, while P-type panels (uses more common silicon) provide solid output at a more budget-friendly price point. Here, the right choice depends on your household energy usage, available roof space, and financial goals.

2. Durability and Long-Term Performance

Most quality solar panels are built to last well beyond their 25-year warranties, but degradation still happens. This refers to the rate at which panels lose efficiency and energy output over time due to exposure to sunlight, weather, and natural wear. Efficiency can vary across panel types:

•         Monocrystalline panels: 0.3–0.5% annual performance loss
•         Polycrystalline panels: 0.79–1.67% annual decline
•         Thin-film panels: shorter lifespan of 10–20 years

While degradation is common, proper installation and regular upkeep can make a big difference in helping your system maintain strong output and extending its lifespan for decades.

3. Warranty Coverage

Solar warranties offer peace of mind and reflect the manufacturer’s confidence in their product. They are designed to ensure that your solar investment remains reliable and efficient over the long term. These warranties typically include:

•         Product warranty (typically 10–15 years, or 25+ on premium models): Covers manufacturing defects and guarantees that your panels are free from defects in materials and workmanship.
•         Performance warranty (often 25–30 years): Guarantees a minimum output level over time, ensuring that your panels will continue to generate energy efficiently for decades, even as they degrade gradually.
•         Workmanship warranty: Covers installation errors, usually provided by your installer. This warranty ensures that if there are issues due to improper installation, they will be addressed without extra cost to you.

4. Manufacturer Reputation & Local Support

When choosing solar panels, the manufacturer’s reputation plays a crucial role in ensuring you’re making a sound investment. A well-established brand with a proven track record ensures they deliver a high-quality, reliable product. Look for manufacturers that have been in the industry for several years and have consistently provided durable, high-performance solar solutions.

Online reviews and forums offer a great way to assess customer experiences and satisfaction, giving you a real-world perspective on how the panels perform over time. Additionally, independent third-party testing and certifications can provide reassurance regarding the panel’s quality and efficiency.

Equally important is the level of customer support the manufacturer offers. While international brands can offer excellent technology, having local customer service and technical support in Australia can make all the difference. Opting for a brand with Australian-based support or local distributors ensures that you have quick access to assistance, whether it’s for system troubleshooting, repairs, or processing warranty claims.

5. Incentives, Rebates & Financing Options

There are a number of incentives and initiatives that help make solar panels more accessible. The most common is the Small-scale Renewable Energy Scheme (SRES). An initiative that helps make solar more affordable by reducing the upfront costs of installing a solar power system.

This is achieved through the allocation of Small-scale Technology Certificates (STCs), which are tradable certificates that are applied at the time of purchase. These certificates provide a financial discount on the cost of your system, effectively lowering the initial investment required. The number of certificates you receive depends on the size of the solar system being installed and your location, as well as other factors such as the system’s expected performance.

For those who are still concerned about the upfront investment, green loans offer an accessible way to finance a solar system. These loans are specifically designed to support environmentally friendly investments like solar panels. With lower interest rates and longer repayment periods, green loans make it easier to manage the cost of solar installation while still benefiting from energy savings over time.

A Quick Overview

Key Takeaways

Today’s solar panels are generating 3 to 4 times more power and are significantly cheaper than those from just ten years ago. This means that solar power is more efficient and accessible than ever before – and with a shift to more sustainable living practices, this technology has become a key part of reducing our individual carbon footprint.

The potential for long-term savings, energy independence, and environmental impact has never been greater. However, with differences in efficiency, warranty and pricing, choosing the right system requires careful consideration.

Still unsure about the right solar panel and system you need? SAE Group are a team of solar panel experts who will assess your unique energy needs and guide you toward the perfect solution for your home or business. With over 20 years of expertise, we ensure you get the best value, performance, and long-term savings from your solar investment.

Now is the time to make the switch. Get in touch today to discuss your options.