Resun Solar vs Sunova - solar panel manufacturer comparison

Resun Solar is a Chinese manufacturer headquartered in Suzhou, with founding accounts placing its establishment between 2005 and 2007 and roughly 15 years of manufacturing experience. The company operates a small number of factories with a production capacity cited around 1 GW, and its sales network reportedly covers more than 80 countries. Its modules carry standard IEC, CE and PID-free certifications, but available sources do not confirm a BloombergNEF Tier 1 listing for Resun. Sunova Solar, also China-based with factories spanning China and Vietnam, has an integrated production capacity of roughly 4.2 GW and has been repeatedly confirmed as a BloombergNEF Tier 1 module manufacturer in multiple quarterly reports through 2023 and 2024. Given the confirmed Tier 1 bankability status and larger manufacturing scale, Sunova appears to have the stronger institutional footprint of the two.

In terms of product focus, Resun Solar's catalog spans roughly 420 W to 590 W modules, including a meaningful share of bifacial panels, and the company positions itself for both ground-mount MW-scale projects and smaller residential rooftop systems. Sunova's lineup is broader in power range, from 400 W to 720 W, and includes dedicated product lines such as its S-size modules for space-constrained residential and small commercial rooftops, alongside higher-wattage Thor-series modules built for industrial rooftops and utility-scale ground-mounted plants. Sunova has been notably active in advancing TOPCon technology, having released high-efficiency n-type TOPCon modules reaching around 22.9% efficiency, and has also shown HJT modules at industry events, while Resun's portfolio leans on conventional mono and poly PERC-type cells with efficiencies up to about 22.9% in its most efficient models as well.

For a typical buyer in 2025, Sunova is generally the safer default choice for larger or financed projects, since its confirmed BloombergNEF Tier 1 status simplifies financing and gives lenders and EPCs more confidence, and its broader TOPCon and HJT technology offering suits both utility-scale and premium residential use cases. Resun Solar remains a viable option for smaller residential or mid-scale ground-mount installations where budget is the primary concern and Tier 1 financing requirements are not in play, but buyers should independently verify current bankability status before committing to large projects.

Generated by Claude Sonnet 5 · 2026-09-19