Decoding Tongwei | Technology Leading | TNC 3.0 "Four-Sub-String" Design, Reducing Losses & Boosting Efficiency!
2026-05-27

Tongwei TNC 3.0 Module

Its cells not only employ 360º three-dimensional passivation technology

but also innovatively adopt a "four-sub-string" design

effectively reducing energy loss

and improving module efficiency

So how does it achieve this?


Let's find out together!

Inside a PV module

the current generated by the cells

needs to be output through interconnection materials such as solder ribbons

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This process

is like a massive flow of traffic

traveling through a road network

where congestion and friction along the way

inevitably cause energy loss

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To reduce losses

the industry has generally adopted circuit optimization design

However, on a traditional two-lane highway

no matter how well-paved the road is

in the face of enormous traffic during morning and evening rush hours

severe congestion still occurs

resulting in massive amounts of idle waiting and heat generation

significantly compromising traffic efficiency

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Tongwei TNC 3.0's innovative four-sub-string circuit design

expands the transmission path

from the traditional "two lanes" to "four lanes"

The overall traffic flow is intelligently and evenly

distributed across four lanes

with the traffic volume on each lane halved

thus bidding farewell to congestion

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Vehicles can now pass through quickly and smoothly

and the energy loss caused by congestion-related friction is also reduced

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Therefore, TNC 3.0 achieves a higher

internal energy transmission efficiency

with module efficiency boosted by over 4W

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