Seraphim vs Sunova - solar panel manufacturer comparison

Seraphim is a Chinese manufacturer founded in 2011 and headquartered in Changzhou, Jiangsu Province. The company has held BloombergNEF Tier 1 status for over 11 consecutive years and has earned six PVEL Top Performer awards, reflecting a long and consistent bankability record. By 2025, it had reached approximately 13 GW of global annual production capacity, with manufacturing in China and South Africa and a US-based subsidiary (SEG Solar) operating a 2 GW module factory in Houston. Sunova Solar, founded in 2016 and headquartered in China with regional offices in Germany and Brazil, achieved BloombergNEF Tier 1 status in Q3 2023, a notably more recent milestone. The company reports around 5.5 GW of operational module capacity and an additional 4.5 GW under construction across facilities in China and Vietnam. Sunova has since rebranded as Thornova Solar. On the dimension of institutional footprint and depth of bankability history, Seraphim holds a clear advantage.

Seraphim's current lineup is centered on n-type TOPCon technology, most prominently in its Nebula series, which achieves efficiencies of up to approximately 22.5%. The portfolio spans residential rooftop, commercial and industrial (C&I), and utility-scale ground-mount applications, with half-cut cell and multi-busbar configurations available across product tiers. Sunova (now Thornova) has developed parallel TOPCon and heterojunction (HJT) lines, offering bifacial dual-glass and backsheet variants under the Thor and Tangra product families. The emphasis on HJT gives Sunova a premium angle in markets where low temperature coefficients and long-term degradation performance are priorities, and the bifacial offerings are well-suited to large ground-mount projects.

For most international buyers looking for a proven mid-tier brand with strong financing credentials, Seraphim is the safer default choice - its scale, manufacturing diversification, and 11-plus years on the BNEF Tier 1 list reduce project finance risk. Sunova (Thornova) is a credible and technically competitive alternative, particularly appealing where HJT technology or European supply chain access matters; however, its shorter bankability track record and the uncertainty that comes with a recent rebranding are factors a prudent buyer should weigh.

Generated by Claude Sonnet · 2026-06-15