Ask most people which solar panels they’d prefer and they’ll say European without hesitating. The assumption is that European-made means better quality, stricter standards and cleaner manufacturing. Chinese-made, by contrast, still carries a stigma that’s hard to shake, even when the data tells a different story.
The reality is more complicated. Manufacturing origin is one factor in a much bigger picture, and it doesn’t tell you nearly as much about a panel’s performance as people think. There’s a lot to unpack here, so let’s get into what actually matters when you’re comparing solar panels by where they’re made.
Why Chinese Brands Dominate the Global Solar Market
China produces around 80% of the world’s solar panels, and that figure isn’t purely down to cheap labour. Over the past two decades, Chinese manufacturers have invested heavily in automation, research and production scale. Brands like LONGi, JA Solar and JinkoSolar aren’t budget alternatives to European panels; they’re genuine technology leaders.
LONGi, for example, holds multiple world records for solar cell efficiency. JinkoSolar’s Tiger Neo series uses n-type TOPCon cell technology and achieves efficiency ratings above 22%. These aren’t the panels of ten years ago. They’re sophisticated products built at scale by companies that spend billions annually on R&D.
If you look at some popular roundups of the best solar panel brands available in the UK, you’ll find Chinese manufacturers sitting alongside European names throughout. They’re not there to fill out a list; they’re there because they perform.
What European Manufacturers Actually Offer
European brands like REC (Norwegian-founded), Qcells (German-founded, now South Korean-owned) and SunPower’s Maxeon line (Singapore-headquartered, manufactured in Mexico, Malaysia and the Philippines) do have genuine strengths. They tend to carry longer warranties, tighter quality controls and stronger reputations for consistent degradation rates. REC’s Alpha Pure-R panels, for instance, are made with lead-free processes, which matters to buyers with environmental concerns beyond just carbon output.
Qcells has built a reputation for thorough in-house testing, and SunPower’s Maxeon line offers one of the longest warranties in the industry at up to 40 years. For homeowners who want maximum long-term assurance and are willing to pay for it, European and Western brands deliver on that front.
But it’s worth being precise about what “European” means here. Several brands marketed as European or Western are manufactured partly or wholly in Asia. The parent company’s location and the factory’s location aren’t always the same thing.
In fact, none of the three brands named above currently manufactures panels in Europe. REC produces its panels in Singapore, Qcells manufactures in the US, Malaysia and South Korea, and Maxeon’s factories are in Mexico, Malaysia and the Philippines.
Quality: What the Specs Actually Show
When you compare panels on efficiency, degradation rates and warranty terms, the gap between Chinese and European products has narrowed considerably. Here’s where the main differences tend to sit:
- Efficiency: Aiko’s ABC cell technology pushes above 25%, matching or beating most European rivals. LONGi and Jinko are both above 22% and closer to 24%.
- Degradation: Premium Chinese panels now degrade at rates comparable to SunPower Maxeon, typically 0.4–0.5% annually after the first year.
- Warranties: European brands still lead here. SunPower’s 40-year warranty is unmatched. Most Chinese brands offer 12–25 year product warranties.
- Value: Chinese panels consistently offer more watts per pound. For households with budget constraints, that can mean a meaningfully larger system for the same spend.
Ethical Sourcing and the Xinjiang Question
This is where the conversation gets harder. A significant proportion of the world’s polysilicon, the raw material used in most solar cells, comes from the Xinjiang region of China. There have been well-documented concerns about forced labour in that region, and several governments including the US have introduced import restrictions as a result.
The UK has not yet introduced import restrictions equivalent to those in the US, though Great British Energy has committed to excluding solar panels linked to forced labour from its supply chains, and Parliament has considered legislation to ban Xinjiang-linked imports.
The issue has prompted some manufacturers to audit their supply chains and offer traceability documentation. REC, for example, publishes information about its polysilicon sources. Some Chinese manufacturers have also sought to demonstrate supply chain transparency, though independent verification remains difficult.
If ethical sourcing is a priority for you, it’s worth asking your installer directly about supply chain documentation. “Made in China” doesn’t automatically mean Xinjiang polysilicon, but without evidence to the contrary, it’s harder to be certain.
Final Notes
Manufacturing origin is a reasonable starting point, but it shouldn’t be the deciding factor. A panel’s efficiency rating, degradation rate, warranty terms and price per watt will tell you far more about whether it’s a good fit for your roof than the country it was assembled in.
The best approach is to compare specific models, not entire countries. Chinese brands have earned their place in the UK market on merit, while European brands offer genuine advantages in certain areas. The right choice depends on what you’re actually trying to get out of your system.
