American vs Chinese Solar Panels For The UK Market

When American vs Chinese solar panels makes a difference.

There are no American-made solar panels available for UK homes; the ones with American brands are made in Asia. Most panels you’ll find on your quote are made in China, which supplies about two-thirds of the UK’s solar imports.

Here’s everything you need to know.

The comparison Britain is sold, and why it misleads

American residential solar is a US-market story. It runs on the manufacturing tax credits that survive from the Inflation Reduction Act and a wall of import tariffs designed to make home-grown panels competitive against Chinese ones on American soil. None of that machinery reaches a UK rooftop. The panels built for it are not exported here in any volume, and where a US-linked brand is available, the product on the pallet was not made in America.

So the useful question for a British buyer is not “American or Chinese?” It’s closer to “a top-tier Chinese panel, a Western-branded panel that still leans on Chinese materials, or one of the few different supply chains altogether, and how much does the ethical picture change my answer?”

What counts as an “American” solar panel in 2026

First Solar: the real American manufacturer

First Solar is the only US-headquartered company among the world’s largest module makers, with about 14 GW of domestic capacity across factories in Ohio, Alabama and Louisiana. It’s also the odd one out on technology: its Series 7 modules use cadmium telluride (CdTe) thin film rather than crystalline silicon, so its process does not rely on Chinese silicon supply chains at all. The catch for households is twofold. Series 7 tops out near 19 to 20% efficiency, below mainstream silicon (22 to 24%), and the panels are built for utility-scale and large commercial projects, not domestic roofs.

Qcells: American-assembled, Korean-owned, Asian-sourced

Qcells is often filed under “American” because of its large Georgia operation at Dalton and Cartersville, the biggest crystalline silicon module base in the US. The brand is owned by Korea’s Hanwha, its US output is aimed at the US market, and the Qcells panels that reach UK installers are typically made in Asia. Reporting in 2024 also found the Dalton plant importing cells built on Chinese wafers, a reminder that “assembled in America” and “free of Chinese material” are not the same.

SunPower and Maxeon: an American name, a Chinese owner

The premium panels sold as SunPower in the UK were developed by Maxeon Solar Technologies of Singapore. Since March 2025 the brand outside the US has been run by TCL SunPower Global, a unit of China’s TCL, which is Maxeon’s majority owner and has bought its Philippines factory. Maxeon itself entered court-supervised restructuring in Singapore in April 2026. The US SunPower installation business that went bankrupt in 2024 is a separate company. The hardware is excellent: the flagship uses interdigitated back-contact (IBC) cells at around 24% efficiency with a 40-year warranty if registered. But it’s an Asian-made, Chinese-owned product with an American heritage badge, not an American-made panel.

Other North American names – Silfab, Mission Solar, Heliene, T1 Energy, Suniva – all point at the US market.

What “Chinese” means now

The Chinese side of the market is not a bargain bin. It’s most of the modern solar industry. The names a UK installer will offer – LONGi and Jinko (joint-largest in the world by 2025 shipments), JA Solar (used by an estimated 41% of UK installers), Trina and Aiko – are BloombergNEF Tier 1 manufacturers. Canadian Solar, despite the name, also builds in China.

Technology has moved on too. The mainstream is now n-type TOPCon at 22 to 24% efficiency, with year-one degradation of about 1%. Back-contact designs from Aiko (ABC) and LONGi (HPBC) push efficiency towards 25%, into the same territory as Maxeon. For specific models, our best solar panel manufacturers guide ranks the current line-ups.

At a glance: American vs Chinese panels for a UK buyer

Quality and efficiency: does origin decide it?

No. The signal that predicts whether a panel performs and whether its warranty gets honoured is the manufacturer’s BloombergNEF Tier 1 bankability rating, not its passport. Long-run field data puts the lowest warranty-claim rates among established Tier 1 makers, several of them Chinese, because they have the production history and the finances to stand behind a 25-year promise.

What matters more than sticker efficiency is degradation rate and the temperature coefficient, both of which the current n-type Chinese panels handle well. For the physics behind those figures, see how efficient solar panels are.

Price, and why American panels cost more

Chinese Tier 1 panels are the value benchmark, and it’s not close. Maxeon sits at the top of the UK market at £280 to £420 per panel installed, while mainstream Chinese modules can be a fraction of that per watt. Across a whole system the gap narrows, because panels are only part of the bill, but it’s still real. A standard 4kW install in the UK runs roughly £5,500 to £8,000 fully fitted in 2026, with 0% VAT until 31 March 2027. Our full breakdown of solar panel costs covers system sizes and payback.

The reason American panels carry a premium is policy, not just wages. The US kept a Section 201 safeguard tariff on imported crystalline modules until February 2026, replaced by Section 232 tariffs from December, and still levies heavy anti-dumping and countervailing duties on cells and modules from China, Taiwan and, since 2025, Cambodia, Malaysia, Thailand and Vietnam, with some rates running into the hundreds of percent. That protection lets US factories exist, but it also prices their output for a protected home market. There’s no commercial logic in shipping a tariff-shielded American panel to Britain to undercut a Chinese one.

The ethical question UK buyers can’t skip

This is where “American vs Chinese” stops being a spec debate. Around 95% of solar modules depend on polysilicon, and the Xinjiang region supplied roughly 35% of the world’s solar-grade polysilicon in 2022. Research from Sheffield Hallam University (“In Broad Daylight”, 2021, and “Over-exposed”, 2023) documented forced labour of Uyghur and other minorities in the early stages of that supply chain, from quartz to polysilicon. Polysilicon producers named in these reports include Daqo, GCL, Xinte and East Hope, and the major module makers – Jinko, JA Solar, LONGi, Trina, Canadian Solar and Hanwha Qcells among them – have at various points sourced from firms with exposure to the region.

This is not an abstract concern in the UK. HMRC data shows Britain imports about two-thirds of its solar panels from China, and a 2021 Guardian investigation implicated UK projects including some tied to the Ministry of Defence. In 2025 the government moved to bar Great British Energy from using panels linked to forced labour. For the wider picture on materials and provenance, see where solar panels are made and our guide to ethical solar panel sourcing.

The honest position is that a fully Chinese-free crystalline panel is hard to buy and harder to verify for a home install. What you can do is ask for polysilicon traceability in writing, favour makers that publish supply-chain audits, and, for ground-mount or commercial projects, look at First Solar’s CdTe modules, which sidestep silicon entirely. If the manufacturing footprint matters to you for carbon reasons as well as ethical ones, our carbon footprint of solar manufacturing guide runs the numbers.

European and other alternatives

Between the two headline options sits a thin European-brand tier that trades price for transparency. REC (HJT Alpha panels, made in Singapore) leans less on Chinese manufacturing than most and has a strong durability record. Meyer Burger, the Swiss-German maker that offered a European silicon story, went insolvent in 2025 and no longer makes panels. REC carries a premium and thinner distribution in the UK, but for a buyer who puts supply-chain provenance and lower embodied carbon first, it’s the closest thing to a clear conscience on a domestic roof.

So what should a UK home actually buy?

For most households the sensible default is a BloombergNEF Tier 1 Chinese TOPCon panel – JA Solar, Trina, Jinko or LONGi. You get modern efficiency, a 15- to 30-year product and 30-year performance warranty, wide installer support and the best price per watt. If your roof is small and every watt per square metre counts, or you want the longest warranty on the market, step up to Aiko’s back-contact panels or a SunPower Maxeon. If the ethical supply chain is your first priority and the project is ground-mount or commercial, First Solar is the standout; for a domestic roof, REC is the nearest equivalent. Our best solar panels for UK homes guide matches specific models to roof types.

Frequently asked questions