Best Solar Panel Factory in China: 2025 Buyer’s Guide

Why Choose a Solar Panel Factory in China?

China dominates the global photovoltaic (PV) industry. By mid-2025, China’s solar installed capacity exceeded 1,230 GW, more than the entire cumulative capacity of the United States. Forecasts suggest it will reach 2,500 GW by 2030, with an annual growth rate of over 15%.

At the same time, oversupply pressures are reshaping the industry. In the first half of 2025:

• Exports shifted – Finished panel exports slowed, while solar cell exports rose 76% and wafer exports rose 26% (total solar exports ≈ 208 GW, up 11% year-on-year).
   

• Prices dropped sharply – Since 2022, battery costs fell 82% and module costs fell 63%, driving down global system prices.
   

For international buyers, this means:

• More competitive pricing than ever before.
   

• Greater need to choose reliable, financially stable, and technically advanced factories to avoid low-quality risks.
   

Regional Clusters of Solar Panel Manufacturers in China

China’s solar industry is organized into strong industrial clusters:

Top solar panel manufacturers in China: LONGi, Jinko, Trina, Tongwei, Canadian Solar, Risen. Together, they control over 60% of global shipments.

How to Evaluate a Solar Panel Factory in China

When comparing solar panel manufacturers in China, consider these key factors:

1. Technical Strength

• Advanced cell technologies: TOPCon, HJT, N-type efficiency ≥22%.
   

• Avoid outdated or stalled technology paths.
   

2. Product Quality

• Must have: TUV, CE, IEC, ISO, RoHS certifications.
   

• Warranty: ≥10 years product + 25 years power output.
   

• Ensure anti-PID, anti-LeTID performance and temperature coefficient ≤-0.34%/°C.
   

3. Real-World Performance

• Compare STC lab data vs NMOT (real outdoor conditions).
   

• For bifacial panels, confirm bifaciality ≥80% and actual yield benefits.
   

4. Cost vs Value

• Don’t only compare $/W. Consider lifetime yield and O&M costs.
   

• Beware of “30% below market price” traps – often low-grade cells or fewer busbars.
   

5. Service & Communication

• Export experience and English proficiency matter.
   

• After-sales: look for 72-hour response time and smart monitoring support.
   

6. Supply Chain & Stability

• Secure partnerships with upstream suppliers (Tongwei, LONGi).
   

• Healthy inventory management (avoid factories with excess stock).
   

Sunchees: A Reliable Solar Panel Factory in China

Founded in 2008 in Foshan, Guangdong, Sunchees is more than just a manufacturer – it is a system integrator and long-term partner for international buyers.

Core Advantages

• System-Level Solution: Inverters, LiFePO₄ batteries, and solar panels designed for 100% compatibility. No mismatch risks common in mixed-brand systems.
   

• Delivery Guarantee: Contractual 5% penalty for late shipments + real-time production updates and post-delivery follow-up.
   

• Customization Flexibility: OEM/ODM available; customers may specify preferred panel brands.
   

• Global Certifications: TUV, CE, RoHS, CB, IEC, SGS. Fully compliant for EU, US, and Australia markets.
   

• Advanced Technology:
   

  • Shingled cell design → higher efficiency and modern aesthetics.
     

  • Anti-PID engineering → reliable in hot and humid climates.
     

Product Range

Company & Service Strength

• Two production facilities, ISO 9001 certified.
   

• Exporting to 100+ countries, 90% export ratio.
   

• 24/7 after-sales support, including installation guidance and spare parts within warranty.
   

Risk Checklist for International Buyers

FAQ: Solar Panel Factory in China

Q1. Why choose a solar panel factory in China instead of local suppliers?
Because China controls the global upstream supply chain (98% wafers, 92% cells, 85% modules). Even non-Chinese brands often source from China. Direct sourcing cuts costs and ensures faster access to the latest technology.

Q2. How can I verify a reliable solar panel manufacturer in China?
Check for TUV, CE, IEC, ISO, warranty terms, financial health, and real project references (≥5 years operation).

Q3. What makes Sunchees different from other solar power manufacturers in China?
Sunchees delivers complete systems (panels + inverters + batteries) with delivery guarantees and global after-sales support – benefits most factories don’t provide.

Q4. What payment methods are standard when buying from China?
Most contracts: 30% deposit + 70% balance before shipment. For large contracts, an L/C adds security.

Q5. How long is delivery time?
Standard systems (10–30 kW) ship in 7–15 days. Larger projects take longer, but Sunchees provides updates and delay compensation.

Conclusion

China remains the world’s solar powerhouse – with the largest capacity, most advanced technology, and lowest costs. But with oversupply and uneven quality, buyers must evaluate factories carefully.

Sunchees stands out as a trustworthy solar panel factory in China, offering:

• Fully integrated, compatible systems.
   

• Certified quality (TUV, CE, IEC).
   

• Delivery guarantees and transparent service.
   

• 24/7 global support.
   

For residential, commercial, and industrial buyers worldwide, partnering with Sunchees means reliable systems, lower risks, and long-term performance.