Choosing panels with confidence
Who makes your panels, how established is the business, and what does its warranty actually promise? Compare six manufacturers you may encounter in a UK solar quotation.
Sources checked: 8 October 2026
These are examples from manufacturer documents, not blanket warranties for every panel carrying the same logo. Your installer should supply the applicable UK warranty for the exact model, supply date and installation. Product cover concerns defects; performance cover sets a minimum panel output curve under specified test conditions.
| Manufacturer | Established | Example panel | Product cover | Performance cover | Group and scale evidence |
|---|---|---|---|---|---|
| Trinasolar | 1997 · about 29 years | Vertex S+ TSM-NEG9R.25 | Up to 25 years; confirm applicable terms | 30 years | Trina Solar Co., Ltd. Its company profile reports nearly 25,000 employees and business in 180+ countries. Company profile · Datasheet |
| JinkoSolar | 2006 · about 20 years | Tiger Neo 3.0 residential example from its launch announcement | 25 years for the residential example; other models differ | 30 years | JinkoSolar Holding Co., Ltd. and its operating businesses. Reports approximately 400 GW cumulative module shipments by Q1 2026. Company profile · Product announcement |
| LONGi | 2000 · about 26 years | Hi-MO X10 LR7-54HVH / LR7-54HVD; April 2026 DG warranty | 15 years under the reviewed standard document; obtain written evidence for any enhanced offer | 30 years | LONGi Green Energy Technology Co., Ltd. Reports 2025 revenue of CNY 70.347 billion and module shipments of 86.58 GW. Company profile · Warranty library |
| JA Solar | 2005 · about 21 years | DeepBlue 4.0 Pro JAM54D41 LB 25Y | 25 years for this version; 15-year versions also appear in its European range | 30 years on the linked datasheet | JA Solar Technology Co., Ltd. European profile reports 260 GW+ cumulative deliveries; the metric’s reporting date is not specified there. Company profile · Datasheet |
| Canadian Solar | 2001 · about 25 years | TOPHiKu CS6.2-48TD, black-frame/all-black; EN-Rev TOPHiKu 1.6 | 25 years for this qualifying model outside Japan; other versions differ | 30 years | Canadian Solar Inc.; module terms issued by CSI Solar Co., Ltd. Group reports nearly 180 GW of modules delivered, on its profile checked October 2026. Company profile · Warranty statement |
| AIKO | 2009 · about 17 years | NEOSTAR 3S60 mono-glass, AIKO-A-MCE60Mb | 25 years on its global product page; confirm UK applicability | 30 years | Shanghai Aiko Solar Energy Co., Ltd. Profile reports 10,000+ employees and 200 GW+ cumulative cell and module shipments; not comparable to module-only totals. Company profile · Product page |
Manufacturer-reported figures use different dates and measures. They show the scale of the businesses, not a financial-strength ranking or a prediction of which will exist in 30 years.
Experience behind the logo
Founded in 1997, with a long solar-industry history and manufacturing operations across several countries. Vertex S+ is a modern product family: the company’s age does not mean this particular design has 29 years of field use. Read its history and footprint.
Started as a wafer manufacturer in 2006 before developing its cell and module business. Tiger Neo is a much newer generation. Its manufacturing scale provides useful context alongside model-specific testing and the claim route. Read the company’s history.
Founded in 2000, initially associated with silicon and wafers. Its 2020 annual report says the acquisition of Zhejiang LERRI Solar at the end of 2014 expanded its module business. That is about 12 years since that acquisition, rather than 26 years manufacturing the current Hi-MO design. Annual report history.
Operating in solar since 2005, with an established cell and module business. Its corporate brochure identifies the listed JA Solar Technology group. Check the actual 12Y, 15Y or 25Y product version in the quotation: a family name alone is insufficient. Corporate brochure.
Founded in Canada in 2001, the group combines module manufacturing with wider renewable-energy and storage activities. CSI Solar’s module warranty is the relevant document to check; a parent company’s size does not automatically make every group company responsible for your claim. Group profile.
A solar-cell manufacturing business founded in 2009. Its timeline records the ABC cell launch in 2021 and ABC module launch in 2022. It has a substantial cell history, while its own ABC panels have a shorter track record. Group identity · Manufacturing timeline.
Where an exact first-module-production date has not been established from the sources reviewed, we do not substitute the founding year or invent a manufacturing duration.
Read the model number
AIKO’s global NEOSTAR 3S60 page advertises 25-year product cover. Its NEOSTAR 3P+54 dual-glass page describes 15 years, extendable to 25. An extension needs its own eligibility and completion checks.
LONGi’s April 2026 Hi-MO X10 distributed-generation warranty lists 15-year product cover for the named models, despite longer offers appearing elsewhere in marketing. Ask for the supplier’s written enhanced warranty if your quotation promises more.
JA Solar’s linked 25Y datasheet shows 25-year product and 30-year power cover. Its European product page contains an inconsistent summary field, reinforcing the need to obtain the actual warranty document instead of relying on one website headline.
These are reasons to verify the paperwork, rather than reasons to dismiss a manufacturer.
Tom Solar’s independent assessment
Our assessment is that their published manufacturing histories, scale and documented panel products justify considering them for a UK home. This is a shortlist, not a league table or a guarantee of future solvency.
For a homeowner prioritising an established module supply base, Trina, Jinko, JA Solar and Canadian Solar are sensible starting points for comparing quotations. LONGi is also a substantial manufacturer, but make sure its actual product-cover period meets your expectations. AIKO merits consideration where its back-contact panels fit the design, while recognising that its ABC module history is younger than its cell business.
The best choice comes from the exact panel, roof design, delivered price, claim process and installer aftercare together. A newer brand is not automatically unreliable, and a famous name does not compensate for weak installation or unclear labour cover.
These recommendations are editorial judgments based on the sources linked here. This comparison is not a sponsorship or a statement that Tom Solar is an authorised representative of these manufacturers.
Practical reassurance
A UK sales office is useful, but is not by itself proof that a UK company owes the warranty obligation. Group revenue, shipment totals and “Tier 1” labels are context; they do not insure your purchase or promise that every claim will be paid.
Read our solar warranty guide and eight-point buyer checklist for installer history, HIES and payment protection. For equipment, layout and price together, use our guide to comparing solar quotations.
Start with your home
A free initial roof check is a useful starting point for exploring your roof’s solar potential. Panel selection comes next, alongside a properly specified installation and clear written protection.
Check My Roof FreeSources are linked beside the relevant figures and examples. Checked on 8 October 2026; terms can change. Use the warranty supplied for your particular purchase to establish the cover, not this summary alone. We have not independently audited the manufacturers’ financial health or their UK claim-handling performance.
For a broader explanation of useful life, read how long solar panels last. Company history, expected life and warranty duration answer different questions.