Hanersun vs Tongwei - solar panel manufacturer comparison

Hanersun is a Chinese PV module manufacturer headquartered in Nanjing, founded in 2015, making it a relative newcomer compared to the industry's established giants. The company holds BloombergNEF Tier 1 status and debuted on PV Tech's ModuleTech Bankability Report with a CCC+ rating in Q4 2024, running an estimated annual production capacity of around 5 GW and having cumulatively shipped over 16 GW of modules by the end of 2025. Tongwei, by contrast, traces back to a company founded in 1982 in Chengdu, entered the PV sector in 2006, and is now the world's largest producer of high-purity polysilicon and solar cells, with roughly 85 GW of annual production capacity and full vertical integration spanning polysilicon, wafers, cells and modules. In terms of scale, history and institutional footprint, Tongwei is clearly the stronger of the two, being the first PV manufacturer ever listed on the Fortune Global 500.

Hanersun's product range centers on high-wattage modules (600 W+ and 700 W+) alongside energy storage systems marketed under the HISMART line for residential use and HNESS for commercial and industrial applications, positioning it well for rooftop residential installs and mid-scale C&I projects. Tongwei, leaning on its n-type TOPCon cell technology and full control over the supply chain from raw polysilicon to finished module, is a natural fit for large utility-scale ground-mount farms and institutionally financed projects where price stability and documented bankability matter most.

For a typical international buyer, both brands clear the formal Tier 1 bankability bar, but Tongwei brings substantially greater manufacturing scale, a longer industrial track record and a larger parent group's financial backing, which translates into stronger confidence around long-term warranty support. Hanersun remains a solid choice where high per-module wattage and product flexibility are priorities, but Tongwei is the safer default for projects that require institutional financing or long-term certainty about the manufacturer's staying power.

Generated by Claude Sonnet 5 · 2026-09-03