Buying guide

Best Solar Panels in Australia

There is no single "best" solar panel for every Australian home. The right panel depends on your roof size, your climate, your shading conditions, your budget, and how long you want the system to perform at a high level. A panel that suits a large north-facing roof in Brisbane may not be the best choice for a compact, partially shaded roof in Melbourne.

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This guide explains how to evaluate solar panels based on the specifications that actually matter, compares the major brands available in Australia, and helps you match a panel to your situation. We include brands we install and brands we do not, because our goal is to help you make an informed decision regardless of which installer you choose.

How to Choose the Right Solar Panel

The five specifications that matter most for Australian residential installations are efficiency, product warranty, performance warranty (degradation rate), temperature coefficient, and cell technology. The sections below explain each one in practical terms.

What the Specifications Actually Mean

Efficiency

Efficiency measures how much of the sunlight hitting the panel is converted into electricity. Modern residential panels range from about 20% to 23.5% efficiency.

Higher efficiency means more electricity per square metre of roof. This matters most when roof space is limited. If your roof is large enough to fit the number of panels you need regardless of efficiency, a slightly lower-efficiency panel at a lower price may offer better overall value.

Do not assume the highest-efficiency panel is always the best choice. Efficiency is one factor among several.

Product Warranty

The product warranty covers manufacturing defects. This is the warranty you rely on if the panel itself fails due to a fault in materials or workmanship. Quality panels carry a 25-year product warranty. Some premium brands offer 30 years. Budget panels may offer only 10 to 15 years.

Check that the manufacturer has a physical presence or authorised warranty agent in Australia. A 25-year warranty from a manufacturer with no Australian office or local representative is difficult to enforce if something goes wrong in year 12.

Performance Warranty and Degradation

All solar panels lose a small amount of output each year. This is called degradation. The performance warranty guarantees a minimum output level at specific milestones (typically year 1 and year 25 or 30).

A quality panel in 2026 typically guarantees at least 84 to 88 per cent of its rated output after 25 years, with annual degradation of 0.4 to 0.55 per cent per year. Some premium panels guarantee 88.9% or higher at 30 years.

The difference between a panel degrading at 0.4% per year versus 0.55% per year is modest in the early years but compounds over 25 years. The better-performing panel will generate noticeably more electricity in years 15 to 25.

Temperature Coefficient

Solar panels produce less electricity as they get hotter. The temperature coefficient measures how much output decreases for every degree above 25°C (the standard test temperature).

A typical coefficient is around minus 0.30 to minus 0.35 per cent per degree Celsius. On a 40°C day, the panel temperature on your roof can reach 65°C or higher, meaning the panel is operating 40 degrees above the rated temperature. At minus 0.30%/°C, that translates to a 12% reduction in output at peak heat.

This specification matters particularly in hot regions like Queensland, Western Australia, and inland areas where sustained high temperatures are common. Panels with a lower (closer to zero) temperature coefficient perform better in heat.

Cell Technology

Almost all panels installed in Australia in 2026 use N-type monocrystalline cells. The two main N-type architectures are:

TOPCon (Tunnel Oxide Passivated Contact) is the current mainstream technology, used by Jinko, Trina, JA Solar, LONGi, Canadian Solar, and most other major manufacturers. TOPCon panels offer efficiencies of 21 to 23%, strong temperature performance, and low degradation.

ABC/HJT (All Back Contact / Heterojunction) are premium cell architectures used by Aiko (ABC) and some Maxeon products. These technologies achieve higher efficiencies (up to 23.6% for residential modules) and have excellent temperature coefficients, but at a higher price point.

The older P-type monocrystalline technology is being phased out. If a quote includes P-type panels, they are likely older stock or a budget option. N-type panels are the current standard for new installations.

Solar Panel Brands Available in Australia

Solar panel specifications at a glance. Listed alphabetically, not ranked.
Brand	Cell technology	Efficiency	Product warranty	Performance warranty	Temp. coefficient
Jinko Solar (stocked by SunRight Solar)	N-type TOPCon (Tiger Neo series)	up to 22.8%	25 years	87.4% at 30 years	−0.29%/°C
Trina Solar (stocked by SunRight Solar)	N-type TOPCon (Vertex S+ series)	up to 22.5%	25 years	87% at 30 years	−0.29%/°C
JA Solar (stocked by SunRight Solar)	N-type TOPCon (DeepBlue 4.0 series)	up to 22.4%	25 years	87.4% at 30 years	−0.29%/°C
Aiko	N-type ABC (All Back Contact, Neostar series)	up to 23.6%	25 years	88.9% at 30 years	−0.26%/°C
REC	N-type HJT (Alpha Pure-R series)	up to 22.6%	25 years	92% at 25 years	−0.24%/°C
LONGi	N-type TOPCon / HPBC (Hi-MO X series)	up to 22.8%	25 years	87.4% at 30 years	−0.29%/°C
Qcells	N-type TOPCon (Q.TRON series)	up to 22.3%	25 years	86% at 25 years	−0.34%/°C
Maxeon (SunPower)	IBC (Interdigitated Back Contact, Maxeon 7 series)	up to 24.1%	40 years	88.3% at 40 years	−0.27%/°C
Canadian Solar	N-type TOPCon (HiKu/HiHero series)	up to 22.5%	25 years	84.8% at 25 years	−0.29%/°C

Scroll the table sideways to compare all six specifications.

Marked brands are stocked by SunRight Solar

Solar panels from nine brands available in Australia, side by side: Jinko, Trina Solar, JA Solar, Aiko, REC, LONGi, Qcells, Maxeon (SunPower) and Canadian Solar

Jinko Solar

Stocked by SunRight Solar

Jinko is one of the world's largest panel manufacturers with a strong track record in the Australian market. The Tiger Neo range offers high efficiency, excellent temperature performance, and competitive pricing. Jinko has established Australian warranty support through its local office.

Best suited to: homeowners seeking a reliable, well-priced panel from a major manufacturer with proven Australian presence.

Technology: N-type TOPCon (Tiger Neo series)
Efficiency: up to 22.8%
Product warranty: 25 years
Performance warranty: 87.4% at 30 years
Temperature coefficient: −0.29%/°C

Trina Solar

Stocked by SunRight Solar

Trina is another Tier 1 global manufacturer with a long history in Australia. The Vertex S+ panels are designed for residential roofs and offer a strong balance of performance and value. Trina panels consistently perform well in independent testing and have reliable local warranty infrastructure.

Best suited to: homeowners seeking quality without paying a premium-brand price. An excellent value option.

Technology: N-type TOPCon (Vertex S+ series)
Efficiency: up to 22.5%
Product warranty: 25 years
Performance warranty: 87% at 30 years
Temperature coefficient: −0.29%/°C

JA Solar

Stocked by SunRight Solar

JA Solar is one of the world's top five panel manufacturers by volume. The DeepBlue 4.0 series uses the same N-type TOPCon technology as Jinko and Trina but at a slightly lower price point. JA Solar has established Australian warranty support.

Best suited to: budget-conscious homeowners who want N-type technology and a strong warranty from a reputable manufacturer.

Technology: N-type TOPCon (DeepBlue 4.0 series)
Efficiency: up to 22.4%
Product warranty: 25 years
Performance warranty: 87.4% at 30 years
Temperature coefficient: −0.29%/°C

Aiko

Aiko's ABC cell technology achieves some of the highest efficiencies available in residential panels. The all-back-contact design means there are no visible busbars on the front of the cell, which also gives the panel a cleaner appearance. Aiko is growing rapidly in the Australian market.

Best suited to: homes with limited roof space where maximum generation per panel is essential, and homeowners in hot climates who benefit from the superior temperature coefficient.

Technology: N-type ABC (All Back Contact, Neostar series)
Efficiency: up to 23.6%
Product warranty: 25 years
Performance warranty: 88.9% at 30 years
Temperature coefficient: −0.26%/°C

REC

REC is a Norwegian-headquartered manufacturer known for build quality and one of the best temperature coefficients in the industry. Their Alpha Pure-R panels are a premium option with excellent performance in hot climates and strong degradation warranties. REC has a solid reputation for durability in coastal and high-humidity environments.

Best suited to: homeowners in hot climates, coastal properties where salt-air resistance matters, or those prioritising long-term output retention.

Technology: N-type HJT (Alpha Pure-R series)
Efficiency: up to 22.6%
Product warranty: 25 years
Performance warranty: 92% at 25 years
Temperature coefficient: −0.24%/°C

LONGi

LONGi is the world's largest solar panel manufacturer and a leader in monocrystalline silicon technology. The Hi-MO X series is widely available in Australia and offers competitive pricing with strong performance. LONGi panels are a solid mid-range option.

Best suited to: homeowners seeking a well-established brand with competitive pricing and reliable performance.

Technology: N-type TOPCon / HPBC (Hi-MO X series)
Efficiency: up to 22.8%
Product warranty: 25 years
Performance warranty: 87.4% at 30 years
Temperature coefficient: −0.29%/°C

Qcells

Qcells is a South Korean-headquartered manufacturer (owned by Hanwha) with global manufacturing facilities. The Q.TRON series offers reliable N-type technology. Qcells has an established presence in Australia through local distribution.

Best suited to: homeowners seeking a reputable global brand at a mid-range price point.

Technology: N-type TOPCon (Q.TRON series)
Efficiency: up to 22.3%
Product warranty: 25 years
Performance warranty: 86% at 25 years
Temperature coefficient: −0.34%/°C

Maxeon (SunPower)

Maxeon panels (formerly SunPower residential) are among the most efficient residential panels available globally. The IBC cell architecture achieves the highest efficiency ratings in the market, and the 40-year product and performance warranty is unmatched. The trade-off is a significantly higher price per panel.

Best suited to: homeowners with very limited roof space who need the absolute maximum generation per panel, or those who value the longest warranty available.

Technology: IBC (Interdigitated Back Contact, Maxeon 7 series)
Efficiency: up to 24.1%
Product warranty: 40 years
Performance warranty: 88.3% at 40 years
Temperature coefficient: −0.27%/°C

Canadian Solar

Canadian Solar is a large global manufacturer offering reliable panels at competitive prices. Widely available in Australia through multiple distributors.

Best suited to: homeowners seeking a proven, competitively priced panel from a well-established manufacturer.

Technology: N-type TOPCon (HiKu/HiHero series)
Efficiency: up to 22.5%
Product warranty: 25 years
Performance warranty: 84.8% at 25 years
Temperature coefficient: −0.29%/°C

Which Panel Suits Your Home?

Best for Limited Roof Space

If your roof is small or partially obstructed, you need maximum watts per panel. Aiko (23.6%) and Maxeon (24.1%) deliver the highest efficiency, which means fewer panels can produce the same total output.

Best for Hot Climates

In Queensland, Western Australia, and inland Australia where summer temperatures regularly exceed 35°C, temperature coefficient matters. REC (minus 0.24%/°C), Aiko (minus 0.26%/°C), and Maxeon (minus 0.27%/°C) lose the least output in heat.

Best for Shaded Roofs

Panel choice alone does not solve shading. If your roof has significant shading, the bigger decision is the inverter: microinverters (like Enphase) allow each panel to operate independently, minimising the impact of shade. Any quality panel paired with microinverters will outperform a premium panel on a string inverter under the same shading conditions.

Learn About Inverter Types

Best for Long-Term Value

If your priority is maximum energy production over 25 to 30 years with minimal degradation, look at the performance warranty numbers. REC (92% at 25 years), Aiko (88.9% at 30 years), and Maxeon (88.3% at 40 years) lead on guaranteed long-term output.

Best for Budget-Conscious Homeowners

If you want reliable N-type technology at the most affordable price point, JA Solar, Trina Solar, and LONGi offer strong performance and solid warranties at a lower cost than premium brands. All three use proven TOPCon technology and have established Australian warranty support.

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What SunRight Solar Installs and Why

We do not currently stock Aiko, REC, Maxeon, LONGi, Qcells, or Canadian Solar. This is not because these are poor products. It is because we believe the brands we stock represent the best combination of quality, value, and local support for the majority of Australian households. If a customer specifically requires a brand outside our standard range, we can discuss availability on a project basis.

We include all major brands in this guide because we believe an informed buyer makes a better customer. If you are comparing quotes from multiple installers, this guide should help you evaluate the panels each one offers, regardless of whether they stock the same brands as SunRight Solar.

Once you have a brand in mind, the next decision is system size. Our size guides cover the most common Australian residential configurations:

6.6kW solar system The standard choice for moderate-use households 10kW solar system For larger households, pools, and EV owners 13kW solar system For all-electric homes and high-energy households

View Solar Panel Systems Get a Personalised Quote

Does the brand of solar panel really matter?

Yes. Panel brand determines the cell technology, efficiency, warranty terms, degradation rate, and the manufacturer's ability to honour warranty claims in Australia. A budget panel from an unknown brand may not have local warranty representation, which means if the panel fails in year 8, you may have no practical recourse.

What does "Tier 1" mean?

Tier 1 is a financial bankability rating from Bloomberg New Energy Finance, not a quality or performance rating. It means the manufacturer is financially stable and has supplied panels to large-scale projects financed by banks. A Tier 1 panel can still be a budget product. Use Tier 1 as a minimum filter, not as a quality endorsement.

Should I choose the highest-efficiency panel?

Not necessarily. Efficiency matters most when roof space is limited. If your roof can comfortably fit the number of panels you need, a slightly lower-efficiency panel at a lower price may deliver better overall value. Focus on the combination of efficiency, warranty, degradation rate, and temperature performance rather than efficiency alone.

What is the difference between product warranty and performance warranty?

The product warranty covers manufacturing defects (the panel fails or stops working). The performance warranty guarantees a minimum output level over time (the panel keeps working but generates less than promised). You need both. A panel with a 25-year product warranty and a 30-year performance warranty is saying: "we guarantee the panel will not fail for 25 years, and we guarantee it will still produce at least X% of its rated output at 30 years."

Are all N-type panels the same?

No. N-type is the silicon wafer type. Within N-type, there are several cell architectures: TOPCon, HJT, ABC (All Back Contact), and IBC (Interdigitated Back Contact). Each has different efficiency, cost, and performance characteristics. TOPCon is the current mainstream technology. ABC, HJT, and IBC are premium architectures with higher efficiency and better temperature performance at a higher price.

How do I check if a panel is CEC-approved?

The Clean Energy Council maintains a public list of approved solar panels and inverters. Your installer should only use panels from this list, as CEC approval is required for the system to be eligible for STCs (the solar rebate). Ask your installer to confirm that the quoted panels are on the current CEC-approved list.

View All Rebates and Incentives

Ready to Choose the Right Panels for Your Home?

The best panel for your home depends on your roof, your climate, and your budget. Request a free, no-obligation quote and we will recommend a panel and system configuration tailored to your property.

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A family and their dog looking at their solar-powered home and battery at sunset

Best Solar Panels in Australia

How to Choose the Right Solar Panel

What the Specifications Actually Mean

Efficiency

Product Warranty

Performance Warranty and Degradation

Temperature Coefficient

Cell Technology

Solar Panel Brands Available in Australia

Jinko Solar

Trina Solar

JA Solar

Aiko

REC

LONGi

Qcells

Maxeon (SunPower)

Canadian Solar

Which Panel Suits Your Home?

Best for Limited Roof Space

Best for Hot Climates

Best for Shaded Roofs

Best for Long-Term Value

Best for Budget-Conscious Homeowners

What SunRight Solar Installs and Why

Frequently Asked Questions

Ready to Choose the Right Panels for Your Home?