Longi Solar vs Talesun - solar panel manufacturer comparison

Longi Solar is a Chinese manufacturer headquartered in Xi'an, Shaanxi, founded in 2000, and has grown into one of the largest photovoltaic companies in the world. The company holds consistent BloombergNEF Tier 1 bankability status and had shipped well over 60 GW of modules cumulatively through 2025, with production targets across wafer, cell, and module lines running into the hundreds of gigawatts per year. Talesun Solar, also Chinese, was established in 2010 and has accumulated around 36 GW of cumulative module shipments at an annual production capacity of approximately 2.8 GW. Talesun earned a top bankability rating in the BloombergNEF 2024 PV Module Bankability Report, confirming its standing as a credible Tier 1 supplier, though its institutional scale and global name recognition remain considerably smaller than Longi's. On the measure of project-financing ease and overall market weight, Longi Solar carries a noticeably stronger footprint.

On the technology side, Longi has pivoted its flagship effort toward proprietary back-contact (BC) architectures, even as TOPCon still accounted for roughly 70% of its 2025 shipments. The Hi-MO 9 module, built on HPBC 2.0 cell technology, achieves 24.8% module efficiency at up to 670 W, while the HIBC heterojunction back-contact variant surpasses 25.9% in mass production and won the Smarter E AWARD 2025 in the photovoltaics category. The residential-focused Hi-MO S10 EcoLife Pro delivers up to 25% efficiency in a compact bifacial format suited to rooftop installations. Talesun's portfolio spans 280 W to 715 W using PERC and TOPCon with SMBB (Super Multi Busbar) interconnection, reaching efficiencies of up to 23%. Product warranties extend to 12-15 years on hardware and 25-30 years on linear performance degradation, broadly in line with industry norms. Talesun is best positioned for cost-sensitive commercial or residential projects where procurement flexibility and lower upfront cost outweigh the case for premium cell technology.

For most international buyers who can source both brands, Longi Solar is the stronger default: its production scale, advanced BC technology pipeline, and well-established bankability make project financing more straightforward and the long-term supply outlook more reliable. Talesun is a legitimate Tier 1 option worth shortlisting in price-driven tenders, but independent testing has returned mixed results on certain models, so reviewing the specific product line before committing remains advisable.

Generated by Claude Sonnet · 2026-05-14