What's Leading the Pack in Mass Production?
1. N-Type TOPCon
-
Production dominance: TOPCon has become one of the top technologies in commercial production. It was the second highest in production capacity by the end of 2022 and is expected to dominate new capacity additions.en.wikipedia.org+15pv-magazine.com+15tamesol.com+15
-
Efficiency in mass production:
-
Solar N Plus reported 26.25 % average cell efficiency in mass production (with peaks up to 26.72 %)sunevo.net+3solarnplus.com+3reuters.com+3.
-
Trina Solar achieved ~26 % efficiency for its i‑TOPCon cells with module outputs exceeding 700 W in productionmaysunsolar.com+15taiyangnews.info+15trinasolar.com+15.
-
2. Heterojunction (HJT)
-
Highest commercial efficiencies: HJT leads in mass-produced crystalline silicon cell efficiency. As of 2023, the average commercial efficiency was ~25.0 %, edging out TOPCon (~24.9 %).eco-greenenergy.com+11en.wikipedia.org+11wearechargeninja.com+11
-
World record: Trina Solar achieved 25.44 % efficiency on large-area n‑type HJT modules in lab conditions—confirming its high potential.en.wikipedia.org+15reuters.com+15trinasolar.com+15
-
Rapid scale-up: HJT capacity is growing quickly, with over 350 GW/year of planned production expansions.en.wikipedia.org+1
Summary Table
| Technology | Mass Production Scale | Typical Efficiency in Production | Relative Production Efficiency |
|---|---|---|---|
| N-Type TOPCon | Very high; expected to lead overall growth | ~26 % (commercial reports) | Leading in production scaling and cost-effective upgrading from PERC |
| HJT (Heterojunction) | Rapidly growing, but smaller share than TOPCon | ~25 % average; higher peaks possible | Highest commercial efficiency, but higher manufacturing complexity |
Verdict
Yes—N-Type TOPCon is currently one of the most advanced and widely deployed silicon-based solar panel technologies in mass production, thanks to its high efficiency, compatibility with existing manufacturing lines, and cost-effectiveness.
All ROCKSOLAR Solar panels are N-Type TOPCon solar panels.
