Jinko, Trina, and Aiko appear on more Perth solar quotes than almost any other panel brands. Jinko and Trina have been staples of the Australian residential market for years. Aiko is a newer mid-range entrant that has attracted significant attention — and won the SolarQuotes Installers’ Choice Award two years running.
Positive Energy Solutions has first-hand experience with Jinko and Trina. Both were previously part of our product range before we moved to SunPower P-Series exclusively. That hands-on installation and after-sales experience gives us a practical perspective on how these panels perform in the real world, not just on a specification sheet.
This post compares all three panels honestly across the specifications that matter for a Perth roof. It is written for homeowners who are researching their options, being quoted on any of these brands, or trying to understand where Aiko sits relative to the established names. The post does not conclude with a recommendation to buy any of the three — Positive Energy Solutions does not install them. But understanding the comparison is useful context whether you are getting quotes from multiple installers or trying to evaluate what is in front of you.
1. The Three Panels: Background
Jinko Solar — Tiger Neo
Jinko is the world’s largest solar panel manufacturer by volume, headquartered in Shanghai and listed on the New York Stock Exchange. Its Tiger Neo range uses N-type TOPCon technology and sits at the upper end of Jinko’s residential product line. Jinko has been actively selling into the Australian market for many years and has a well-established wholesale distribution network. Its panels are found on millions of Australian rooftops.
The Tiger Neo is a solid mid-range panel. It is not glass-glass in standard residential configurations, does not include a labour warranty, and carries a 25-year product and performance warranty. As one of the most widely deployed panels in Australia, Jinko has a real Australian service track record.
Trina Solar — Vertex S+
Trina is another of China’s largest panel manufacturers, with a similar market position to Jinko — high volume, well-distributed in Australia, and present in a large proportion of residential installations across the country. The Vertex S+ uses N-type TOPCon technology and competes directly with Jinko’s Tiger Neo at a similar price point.
Trina’s specifications are marginally behind Jinko’s — slightly lower peak efficiency and the same degradation rate. Like Jinko, it uses polymer backsheet construction, carries a 25-year product and performance warranty, and includes no labour warranty. Its Australian track record is long and the distribution network is strong.
Aiko — Neostar 3S
Aiko is a Chinese manufacturer that has entered the Australian market more recently than Jinko or Trina. It uses ABC (All Back Contact) technology — a design that moves all cell contacts to the rear of the panel, eliminating front-side busbar shading and enabling higher efficiency than conventional TOPCon designs. The Neostar 3S 475W is Aiko’s primary residential panel in Australia.
Aiko has generated genuine industry recognition in a short time. It won the SolarQuotes Installers’ Choice Award in both 2025 and 2026 — the most respected independent installer survey in Australia. Its specifications are impressive: 23.8% peak efficiency, -0.26%/°C temperature coefficient, and 0.35% annual degradation. It carries a 25-year product warranty and a 30-year performance warranty.
The main caveat is its track record. Aiko has been in the Australian market for a relatively short period. Its warranty reputation, long-term service capacity in Australia, and ability to honour claims at scale over 20+ years remain to be proven here. Awards and impressive specifications do not substitute for a demonstrated long-term presence.
2. Specification Comparison
Specifications are based on published manufacturer data for standard residential models. Jinko and Trina performance warranty figures reflect 25-year linear degradation guarantees. ✓ indicates best performer in each category.
3. Category-by-Category Analysis
Efficiency
Aiko leads clearly at 23.8% — roughly 1.8 percentage points above Jinko and 2.3 percentage points above Trina. For a 22-panel system, that efficiency advantage translates to meaningfully more power from the same roof area. On a constrained roof where panel count is limited, Aiko’s efficiency advantage is practical, not just theoretical.
Jinko and Trina are close to each other, with Jinko holding a slight edge. Neither approaches Aiko’s efficiency with the ABC cell design.
Temperature coefficient
All three use polymer backsheet construction and are subject to Perth’s heat. The temperature coefficient measures how much output drops for each degree above 25°C. Aiko’s -0.26%/°C is the best of the three — significantly better than Jinko and Trina’s -0.30%/°C. On a 40°C Perth summer day, with roof surface temperatures potentially exceeding 70°C, the difference compounds across the day and across the season.
In Perth’s climate specifically, a better temperature coefficient is not a marginal spec point — it is a meaningful real-world performance factor.
Degradation and long-term output
Aiko degrades at 0.35% per year after an initial year-one loss of up to 1%, guaranteeing at least 88.85% output at 30 years. Jinko and Trina both degrade at 0.45% per year and guarantee approximately 87.4% output at 25 years — their performance warranties run for 25 years, not 30.
Aiko wins on degradation rate, annual output retention, and the length of its performance warranty. For a system expected to run for 25 to 30 years, this difference grows over time.
Construction — all three use polymer backsheets
This is where all three panels share the same limitation. The standard residential Neostar 3S, Tiger Neo, and Vertex S+ all use mono-glass construction with a polymer backsheet. None are glass-glass in their standard residential configuration.
Polymer backsheets can yellow, delaminate, and lose dielectric strength over time when exposed to Perth’s UV intensity and thermal cycling. This is a well-documented long-term durability consideration for polymer-backed panels on Perth rooftops. All three brands have addressed this with improved backsheet materials in recent generations, but the fundamental limitation of glass-polymer versus glass-glass construction remains.
Aiko does offer a dual-glass bifacial model (the Neostar 3P and 3S+). However, these are positioned at a higher price point and are a different product from the standard residential 3S most commonly quoted in Perth.
Warranty depth
All three panels carry a 25-year product warranty. Aiko extends this with a 30-year performance warranty — five years longer than Jinko and Trina. None of the three include a labour warranty. If a panel from any of these brands needs replacing due to a manufacturing defect, the panel replacement may be covered — but the cost of an electrician attending the roof to remove, replace, and recommission the panel is not.
For a 25 to 30-year system, the probability of at least one warranted panel replacement event is real. The labour cost associated with that event is the homeowner’s responsibility with all three brands.
Australian market presence
Long-term presence and reputation in Australia matters enormously when manufacturers are offering warranties that run for 25 to 30 years. A warranty is only worth the paper it is printed on if the company behind it is still operating, still servicing the Australian market, and still carrying replacement stock when you need to make a claim in year 18. The Australian solar market has seen panel manufacturers come and go quickly — brands that entered with strong marketing and competitive pricing, built a significant installed base, and then reduced their Australian presence or exited the market entirely. Homeowners holding those warranties were left with limited recourse.
Jinko and Trina have long, established Australian histories. Both have been distributing panels here for many years, have local distributor relationships, and have a demonstrated track record of honouring warranties and providing replacement stock. Their warranty claims processes, while not always fast, are known quantities. That track record matters — it means you can assess their behaviour based on evidence, not marketing.
Aiko’s Australian presence is shorter. The brand is growing quickly and its installer recognition is genuine — its SolarQuotes award wins reflect real industry respect for the product. But a strong start in the Australian market is not the same as a proven long-term commitment to it. For a panel backed by a 30-year performance warranty, the question is not just how good the panel is today, but whether the manufacturer will be actively servicing the Australian market and honouring claims in year 20. That question has a clear answer for Jinko and Trina. For Aiko, it remains to be demonstrated.
4. Where Does Aiko Sit Relative to Jinko and Trina?
Aiko is the strongest performer of the three across efficiency, temperature coefficient, and degradation. On raw specifications, it is a clear step above Jinko and Trina within the mid-range bracket and is priced accordingly.
The trade-off is track record. Jinko and Trina have long Australian histories. Aiko does not. Whether that matters depends on how much weight you place on a manufacturer’s demonstrated long-term Australian service capability versus headline specification performance. All three sit firmly in the mid-range — none offer the glass-glass construction or integrated labour warranty that define the premium tier.
If you are being quoted Aiko, the relevant questions to ask are: what is the distributor’s replacement stock policy if a warranty claim is lodged in year 15? Who is the Australian entity responsible for warranty claims? What is the process and typical resolution time? These are questions that Jinko and Trina have well-established answers to, and Aiko is still building.
The history of the Australian solar market is instructive here. Multiple panel brands have entered with competitive pricing, strong specifications, and genuine early momentum — and then scaled back their Australian operations or exited the market before their warranties reached their halfway point. The customers left holding those warranties had panels on their roofs but limited ability to enforce the guarantee. Longevity in the Australian market is not just a nice-to-have — it is part of what a warranty is actually worth.
5. Why Positive Energy Solutions No Longer Installs Any of These Three
Positive Energy Solutions previously installed both Jinko and Trina panels and accumulated real-world experience with both across installations in Perth. The decision to move to SunPower P-Series exclusively was deliberate and based on that experience, not on specification sheets alone.
The core limitations that Jinko, Trina, and Aiko share are the same reasons Positive Energy Solutions moved away:
- No labour warranty: All three brands leave the cost of warranted repairs with the homeowner. SunPower’s 30-year integrated warranty covers product, performance, and labour — the only panel Positive Energy Solutions is aware of that does. For a system we install and stands behind with a 10-year workmanship warranty, having the panel manufacturer also cover labour risk aligns our position with the customer’s.
- Polymer backsheet construction: The standard residential versions of all three panels use polymer backsheets. Positive Energy Solutions installs glass-glass panels only, based on the long-term durability advantage in Perth’s conditions.
- Wholesale supply: All three are supplied through wholesale distribution networks. Positive Energy Solutions receives SunPower panels direct from the manufacturer, which creates cleaner accountability on supply, quality, and warranty escalation.
There is also a broader point that applies across all three brands. The Australian solar market has seen panel manufacturers come and go quickly — entering with competitive pricing, generating a meaningful installed base, and then reducing their local presence or exiting before their warranties reached maturity. Customers in that situation have panels on their roofs and warranties on paper, with limited ability to enforce them. Long-term presence and reputation in Australia is part of what a warranty is actually worth. Jinko and Trina have that track record. Aiko does not yet. For a 30-year system, Positive Energy Solutions takes that distinction seriously.
6. Want to See How These Compare to SunPower?
Positive Energy Solutions has published a separate four-panel comparison — SunPower P-Series vs Aiko vs Jinko vs Trina — that adds SunPower into the spec table and explains in detail where each panel wins and loses. If you are weighing up a premium panel installation and want to understand the full picture, that post is the place to start.
Related guides
- Solar Panels Perth 2026: Mid-Range vs Premium — Aiko, Jinko, Trina, and Why PES Chose SunPower
- Best Solar Batteries for Perth Homes in 2026
- Best Solar Panels Perth 2026: What to Look For and What We Install
- Is LFP Battery Chemistry Right for Perth Homes? A Closer Look at the BYD Battery-Box Premium HVM
Frequently Asked Questions
Is Aiko better than Jinko and Trina?
On the specifications that matter for Perth — efficiency, temperature coefficient, degradation rate, and warranty length — yes, Aiko’s Neostar 3S is a step above Jinko’s Tiger Neo and Trina’s Vertex S+. The trade-off is that Aiko has a shorter Australian market track record than either Jinko or Trina. Whether that matters to you depends on how much weight you give to a manufacturer’s demonstrated long-term Australian service history.
Did Positive Energy Solutions previously install Jinko and Trina panels?
Yes. Positive Energy Solutions previously offered both Jinko and Trina in its product range and has first-hand installation and after-sales experience with both. The decision to move to SunPower P-Series exclusively was based on that experience — specifically the absence of a labour warranty, polymer backsheet construction, and supply through wholesale intermediaries rather than direct from the manufacturer.
Why does not Positive Energy Solutions install Aiko?
Three reasons. First, the standard Aiko Neostar 3S uses a polymer backsheet — Positive Energy Solutions only installs glass-glass panels. Second, Aiko does not include a labour warranty — SunPower is the only panel that covers labour alongside product and performance for 30 years. Third, Aiko is a newer entrant to the Australian market with a shorter warranty and service track record here than more established brands. Long-term presence and reputation in Australia is critical when manufacturers are offering 25 to 30-year warranties. The Australian solar industry has seen brands enter quickly and exit just as quickly, leaving customers with warranties they cannot enforce. We are not willing to install panels on a customer’s roof for 30 years based on a short Australian track record, regardless of how strong the specifications are.
What is the difference between the Aiko Neostar 3S and the dual-glass models?
The Neostar 3S is Aiko’s mainstream residential model — mono-glass with polymer backsheet, monofacial. The Neostar 3P and 3S+ dual-glass models use glass-glass bifacial construction and are priced higher than the standard 3S. If you are being quoted Aiko, confirm which specific model is on the quote and whether it is glass-glass or glass-polymer.
Are Jinko and Trina reliable panels?
Yes. Both are established manufacturers with long Australian track records and large installed bases across the country. Their products are well-tested, widely deployed, and supported by known warranty processes. The limitations outlined in this post — polymer backsheet, no labour warranty, wholesale supply — are shared industry limitations rather than specific quality concerns about either brand. They are solid mid-range panels. Positive Energy Solutions moved away from them not because of reliability concerns but because SunPower addresses the specific gaps they share.
What panel does Positive Energy Solutions install instead?
Positive Energy Solutions installs SunPower P-Series panels exclusively on every system. The SunPower P-Series is a glass-glass bifacial N-type TOPCon panel rated to 440–460W, backed by a 30-year integrated product, performance, and labour warranty. We are a SunPower Elite Partner and receives panels direct from SunPower without a wholesale intermediary.
About the Author
Jason Wiktorowicz
Sales Manager, Positive Energy Solutions | Perth, WA
Jason has been at the centre of Western Australia’s energy transition for over a decade. As Orchestration Lead on Project Symphony — WA’s largest virtual power plant pilot — and Stream Lead on Project Encore, he worked directly with AEMO, Western Power and Energy Policy WA to shape how distributed energy resources connect and operate on the SWIS. That work included developing and rolling out CSIP-AUS, now mandatory for all new WA grid connections. He also led Emergency Solar Management (ESM), the first program of its kind in WA, VPP for Schools (VPP4S), which provided direct market benefits through Supplementary Reserve Capacity, and REBAR, the WA Residential Battery Rebate scheme.
His earlier career spanned Synergy, Infinite Energy and Curtin University’s Sustainability Policy Institute, where he co-authored peer-reviewed research on net-zero urban precincts, solar integration and peer-to-peer energy trading, published in the journal Urban Planning in 2018.
At Positive Energy Solutions, Jason leads sales with a focus on system design accuracy and long-term performance. Positive Energy Solutions installs solar and battery systems, EV chargers and heat pumps, and holds partner accreditations with Fronius, SigEnergy, iStore and SunPower. Connect with him on LinkedIn.
