GCL vs Horay Solar - solar panel manufacturer comparison

GCL, formally represented by its module division GCL-SI, is a Chinese manufacturer headquartered in Suzhou, Jiangsu Province. The parent GCL Group dates back to 1990 and built its reputation as one of the world's dominant polysilicon suppliers before expanding aggressively into module production. GCL-SI reached approximately 30 GW of annual module production capacity and shipped 16.42 GW in 2023, making it one of the highest-volume solar panel producers globally. Its Tier 1 classification under BloombergNEF is a point of debate across industry sources, with some reviewers confirming it and others noting inconsistency in formal BNEF listings. Horay Solar is a smaller Chinese manufacturer established in 2010 and based in Wuxi, Jiangsu Province, with annual production capacity of roughly 2.5 GW. It is listed as a BloombergNEF Tier 1 module manufacturer for Q1 2025, which supports bankability for externally financed projects. On institutional scale and global reach, GCL holds a considerably stronger position.

GCL's product lineup centers on TOPCon technology - its ASTRO N7 series achieves a confirmed module efficiency of 23.3% - alongside Cast-Mono modules and an active perovskite research pipeline. The company's primary commercial focus is utility-scale ground-mount and large C&I applications, though its panels are distributed widely across residential markets. Horay Solar's catalog spans Mono PERC and N-type modules in both monofacial and bifacial configurations, using 182 mm and 210 mm cells. The Galaxy series targets utility and commercial ground-mount deployments, while the HS410T family serves residential and light commercial rooftop applications. The company holds TUV, ETL, ISO9001, ISO14001, ISO45001, and INMETRO certifications, with a 15-year product warranty and a 25-year performance guarantee at 84.8% output.

For international buyers working on utility or large C&I projects, GCL's sheer manufacturing scale and TOPCon technology maturity make it a strong default choice, provided supply chain and warranty terms are verified independently. Horay Solar is a credible mid-tier option where confirmed BloombergNEF bankability is a requirement and project size does not demand the deepest supply pipeline. For mid-scale C&I applications the two brands are largely interchangeable, and panel selection should ultimately be driven by local distributor support and bankability confirmation for the specific financing structure.

Generated by Claude Sonnet · 2026-05-15