Australia is one of the sunniest countries in the world, and that makes it a prime contender for solar energy. Over recent years, rooftop solar adoption has surged suggestively, driven by decreasing panel costs, stronger government incentives, and increasing environmental awareness.
But with so many solar suppliers in the Australian market, it can be tough for homeowners and businesses to figure out who to trust. In this post, we’ll discover the best solar suppliers in Australia, what makes a supplier “good,” and some top names in 2025.
What Does “Best Solar Suppliers in Australia” Mean?
A solar supplier is a business that furnishes the vital components and materials essential to construct and install a solar energy system. They chiefly serve as the distributor of equipment, acting as the intermediary between manufacturers and the installers or end-users. The key items they supply naturally include solar panels, inverters, mounting hardware, and often energy storage solutions like batteries.
When we talk about solar suppliers, it’s usually a combination of:
- Panel Manufacturers – Companies that produce solar modules (panels)
- Inverter Manufacturers – Firms that make the inverters (DC → AC) used in solar systems
- Installers / Retailers – Local Australian companies that sell, design, or install solar systems
A good solar supplier isn’t just about brand; it’s about the quality of equipment, warranty, installation service, and long-term support.
Key Factors to Look for When Choosing a Solar Supplier in Australia
When choosing a solar supplier, prioritise the eminence and brand reputation of the components, ensuring they are certified and come with long-term, inclusive warranties (typically 25 years for panels). It is decisive to verify the supplier’s financial stability and track record to confirm they will remain in business to honour any assurances over the lifespan of the system.
Finally, evaluate their technical support and after-sales service, as consistent assistance is vigorous for the long-term performance and maintenance of your solar investment.
Here are some critical factors to evaluate when choosing solar suppliers in Australia:
- Accreditation: Make sure your installer is accredited by the Clean Energy Council (CEC). Without this, you may not be eligible for rebates.
- Warranty: Check both the product warranty (panels) and workmanship warranty.
- Performance / Efficiency: Higher-efficiency panels generate more power but often cost more.
- Reputation & Reviews: Look for companies with good customer satisfaction, + ratings. Canstar Blue, for instance, tracks satisfaction of solar installers in Australia.
- Local Support & Service: Suppliers with local warehouses or service centers are generally more reliable when it comes to maintenance or replacing faulty parts.
- Financial Incentives: Make sure your supplier is knowledgeable about current federal and state-level solar incentives.
Top Solar Panel Brands (Manufacturers) in Australia
Australia’s solar market is dominated by numerous globally recognised manufacturers known for high efficiency and reliability. Leading brands frequently recommended and installed include Jinko Solar, Trina Solar, and LONGi, which are often cited for offering a prodigious balance of performance and value.
For premium options, companies like SunPower (Maxeon) and REC Group are decidedly regarded for their top-tier efficiency, all-inclusive warranties, and outstanding durability in the demanding Australian climate.
Here are some of the most reputable solar panel brands active in the Australian market, based on performance, warranties, and availability:
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SunPower (Maxeon)
- Known for very high efficiency and durability.
- Long warranties: up to 40 years on certain Maxeon panels.
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REC Solar
- Strong reputation in the mid-to-premium segment.
- Their “Alpha Pure” series is especially well-regarded.
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Qcells
- German-engineered, good durability, and ~25-year warranty.
- They’ve become very popular in Australia.
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Jinko Solar
- One of the largest module manufacturers in the world.
- Strong presence in Australia, with good local support.
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LONGi Solar
- Known for mono-crystalline technology, cost-effective, reliable.
- Very popular for both residential and commercial installations.
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Aiko Solar
- They produce high-efficiency “N-type” modules that are well-suited for high performance.
- According to recent reviews, Aiko panels deliver excellent value.
Leading Solar Installers / Retailers in Australia
While panel brands are crucial, who installs your system is equally important. Here are some of the best solar companies in Australia (installers / retailers):
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Solargain
- According to Canstar Blue, Solargain is rated very highly in terms of customer satisfaction.
- They operate in multiple states and provide both residential and commercial solar solutions.
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SunBoost
- A large national company, with a significant number of installations.
- They offer a range of high-quality brands and guarantee performance through warranties.
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Esteem Energy
- Known for efficient installation turnaround and good after-sales service.
- They also provide strong warranties and transparent pricing.
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Independent / Specialty Installers
- According to SunWiz, some of the best-rated local solar retailers include Penrith Solar, Solar Air Energy, Rescom Solar, and Sunny Sky Solar.
- These smaller/local operators can sometimes offer more personalised service and flexibility.
Trends & Developments in the Australian Solar Market
The Australian solar market is undergoing healthy growth, driven by a national push toward the goal of 82% renewable electricity by 2030. A major trend is the accelerated uptake of home battery storage solutions, as consumers pursue greater energy independence and the ability to maximise their rooftop solar savings during peak times.
Furthermore, there is an emphasis on improving grid stability through “smart” inverters and dynamic export limits to manage the huge amount of distributed solar power, alongside noteworthy investment in utility-scale solar farms paired with large-scale battery projects.
Here are some current trends and important developments in Australia’s solar landscape:
- Rising Rooftop Deployment: Rooftop solar capacity in Australia continues to grow strongly, with more households and small businesses investing in solar.
- Waste / Recycling Concern: A growing issue is solar panel waste; without a strong recycling infrastructure, end-of-life panels may end up in a landfill.
- Local Manufacturing: There are plans and projects to increase domestic solar manufacturing. For example, a 2 GW ingot and wafer manufacturing facility is being planned in Townsville.
- Commercial Scale Growth: Utility-scale solar farms continue expanding, and companies like EDP Renewables are increasingly investing in large-scale projects.
Tips for Choosing the Right Solar Supplier for You in Australia
To hand-pick the best solar supplier in Australia, prioritise their reputation and longevity in the business, checking for Clean Energy Council (CEC) accreditation and positive customer reviews. Insist on a thorough site inspection to confirm the system is custom-designed for your energy requirements and roof specifications, avoiding ‘one-size-fits-all’ quotes.
Lastly, always ensure that the supplier provides a strong, all-inclusive workmanship warranty and uses component brands with a local Australian office for consistent long-term support.
- Get Multiple Quotes: Always ask for at least 3 quotes. Compare not just on price, but on panel brand, inverter, warranties, and installation timelines.
- Check CEC Accreditation: Insist on a CEC-accredited installer — it ensures quality and gives access to rebates.
- Ask for References / Past Work: Ask to see previous installations (especially from the company in your area) or customer testimonials.
- Ensure Local Support: If the supplier has a local base (or warehouse), it’s much easier to handle maintenance or issues later.
- Understand Warranty Terms: A “25-year warranty” doesn’t always mean 25 years of full output — check degradation, coverage, and conditions.
Top 10 Solar Suppliers in Australia (2025)
The Australian solar market features a range of large-volume solar retailers and wholesalers that supply key components across the country. Companies like Jinko Solar, Trina Solar, and LONGi are consistently among the most supplied and trusted panel brands due to their Tier 1 status and strong performance warranties. Meanwhile, local and international distributors such as OSW (Australia’s largest distributor), BayWa r.e., and Sol Distribution play a critical role in providing quality panels, inverters (like Sungrow and Fronius), and battery solutions to solar installers nationwide.
Here’s a mix of leading installers (retailers) and top solar panel brands, because both are critical in the solar supply chain.
Solar Installers / Retailers in Australia
- Origin / Sun Retail
- According to SolarNerds’ 2025 Q1 data, Origin leads the national small-scale (≤100 kW) solar market with ~37,918 kW installed and ~4,177 systems.
- Its subsidiary Sun Retail is also very strong, with 22,451 kW installed in the same period.
- Being a large energy company, Origin can leverage scale, financing, and integration with its broader energy business.
- Sunboost
- Recognized as the top installer in the sub-100 kW rooftop PV segment.
- In 2024, Sunboost deployed 10,432 rooftop PV systems with a combined capacity of ~99 MW.
- Part of the National Solar Energy Group (NSEG), giving it wide national reach.
- RESINC Solar
- Won the SolarQuotes Customer Choice Award for 2025, based on strongly positive customer reviews.
- Known for high-quality installations and strong customer satisfaction.
- Solargain
- Rated very highly by customers in Canstar’s 2025 solar installer satisfaction survey — 5 stars in all categories.
- A long-established brand, with experience, a broad network, and solid reliability.
- Hello Solar
- According to SolarNerds, Hello Solar holds a notable share (1.03%) of the national ≤ 100 kW segment.
- Growing presence, especially for residential-scale systems.
- Energy Build
- Also featured in SolarNerds’ Q1 report with 7,846 kW installed across 1,320 systems.
- Active in both residential-scale work and slightly larger rooftop projects.
- Green Energy Technologies
- Another company on the 2025 Q1 SolarNerds leaderboard (5,001 kW, 419 systems).
- Known for combining solar and battery solutions.
- 1 Solar Australia
- Featured in the same SolarNerds report with 4,728 kW installed, 467 systems.
- A growing player and increasingly relevant in certain regional markets.
- Perth Solar Force
- Strong presence in Western Australia: in WA’s Q1 2025 data, they lead retailer volume with 4,445 kW installed (569 systems).
- Regional strength is very useful in a geographically large country like Australia.
- Solar Seed
- According to SolarNerds, they installed 4,217 kW (390 systems) in the national ≤ 100 kW market in Q1 2025.
- Emerging as a reliable installer in several markets.
Top Panel / Equipment Brands (Solar Panel Manufacturers)
Alongside the installers, here are 5 of the most highly regarded solar panel brands in Australia (2025):
- Aiko Solar
- Aiko is making waves: in the GoalSolar “Best Solar Panels 2025” list, Aiko came first.
- Known for its Neostar range; good efficiency and strong warranties.
- SunPower / Maxeon
- Very high efficiency; Solarproof lists SunPower (Maxeon) as a top brand for 2025.
- Excellent reliability and long-term performance.
- REC Solar
- Also in Solarproof’s top list: well-known for quality, long warranties, and strong European engineering.
- Their “Alpha” series is very popular among Australian homeowners.
- Qcells
- Ranked in the top panel brands for efficiency and reliability.
- Strong global presence + good performance in heat (important in many Australian regions).
- Longi Solar
- According to Econnex, Longi is a trusted brand in Australia, making high-efficiency modules.
- Good warranties + bankable reputation.
Analysis & Why These Matter
- Installer Market Leaders: The list reflects companies that are not just big but also active in 2025, based on recent installation volume data. Using SolarNerds and SunWiz data helps identify who’s actually doing the installs now.
- Brand Strength: Panel manufacturers make a big difference — even the best installer can’t fix poor panels. Choosing from brands that are well-rated by installers (like Aiko, SunPower, REC) gives you more confidence.
- Regional Considerations: Some installers are stronger in specific states or territories (e.g., Perth Solar Force in WA), so “top national installer” might not always be your best local choice.
- Customer Satisfaction: Awards from independent sources like Canstar Blue or SolarQuotes provide insight into how happy real customers are.
My Recommendation for Homeowners in Australia
- Get multiple quotes from the above installers — make sure they use good-quality panels.
- Ask for equipment specs (which panel brand, model, inverter) — don’t just pick the cheapest.
- Check for Clean Energy Council (CEC) accreditation when choosing an installer.
- Review warranties carefully, both product warranty (panels) and workmanship (installation).
Conclusion
The solar landscape in Australia is robust, with many high-quality suppliers and installers competing to deliver reliable, efficient, and cost-effective systems. Whether you’re a homeowner looking to reduce electricity bills or a business wanting to lower your carbon footprint, choosing the right solar supplier is crucial.
- For premium, high-efficiency panels, consider brands like SunPower (Maxeon) or REC.
- For cost-effective and widely trusted panels, Jinko and LONGi are strong bets.
- For installation and retail, companies such as Solargain, SunBoost, and Esteem Energy offer a mix of national reach and strong reputation.
By sensibly assessing your options, asking the right questions, and choosing a trustworthy, accredited solar installer like Goal Solar, you can make a solar investment that not only saves you money but also donates to a more sustainable energy future in Australia.
