In the ongoing process of optimizing the LCOE for PV

module efficiency

remains the pivotal variable determining system value

For Tongwei's TNC 3.0

module efficiency is not merely a competition on a single parameter

It represents a systemic capability that requires repeated validation

in both large-scale manufacturing and long-term operation

Tongwei has deeply integrated multi-busbar cell

and module technologies

introducing the TNC 3.0 module equipped with

quad-busbar technology

It achieves a significant power increase of over 20W per module

The TNC 3.0 G12R-66 model

reaches a maximum power of 670W

with 24.8% conversion efficiency

The TNC 3.0 G12-66 model

reaches a maximum power of 770W

with 24.8% conversion efficiency

This establishes them as the industry leader in efficiency for 210mm cell-based modules

Tongwei's TNC 3.0 modules

through their incremental yet significant efficiency evolution

continue to provide differentiated high-performance solutions

to the market

360° Omni-Directional Passivated Cell

A New High-Efficiency Foundation

Powerful Performance, Comprehensive Leadership

Light-Hydrogen Stable Passivation, Secondary Sintering, TPE, Poly-Tech, and Ultra-Fine Gridlines

Multiple key cell technologies

lay the foundation for the enhanced efficiency of TNC 3.0

360° Omni-Directional Passivated High-Efficiency Cell

Single-cell efficiency: 26.3%+

Single-cell power*G12

11.6W+

Conventional TOPCon with Local Passivation Cell

Single-cell efficiency: 25.5%

Single-cell power *G12 11.2W

Higher Power, More Stable Generation

Dividing a cell into four parts

significantly reduces operating current

resulting in more robust and safer power output

Operating current per cell

is reduced by 50% compared to half-cut cells

Power gain

4W higher compared to half-cut cells

Higher energy yield

Power loss is significantly reduced

Cooler operation

Operating temperature is notably lower

Increased active area for power generation

Single PV module +0.4 cells

with louver-style interconnections between cells

effectively increases the light-receiving area, boosting generation power further

Single PV module area 66+0.4 cells

Power gain increases 5W

Cell density increased by 0.6%

(compared to conventional TOPCon half-cut modules)

Dual Sides, Double the Yield

High Rear-Side Generation

In high-reflectivity environments like snow, sand, or concrete

the module's rear side captures additional light energy

Poly-Tech technology enables high-transmittance rear-side cells

Poly-Tech technology

increases rear-side power by approximately 5%

The two-piece junction box

reduces shading area on the rear side by 16.7%

compared to conventional three-piece TOPCon junction boxes

Bifaciality: 85% ±5%

Derong, Sichuan: Energy yield increased by 0.59%

Yancheng, Jiangsu: Energy yield increased by 0.44%

Dongfang, Hainan: Energy yield increased by 0.43%

Data sourced from Tongwei third-party & internal empirical data