The Latest Process for

Solar Cells Interconnection

SWT is an innovative cell connection process for solar module manufacturing. Standard busbars are replaced by 18 micro-wires that gather energy fluently and strengthen the solar cell. The wires are coated with a thin layer, which melts to the cell during the module lamination process, building up electrical contact points in the entire  cell. SmartWire Technology results in advanced module efficiency improvements while negative effects are reduced.

WE DELIVER THE LATEST

TECHNOLOGY TO

POWER THE WORLD

FOIL-WIRE ELECTRICAL

CONDUCTOR

It all starts with a wire; 18 micro-wires are robotically placed in parallel and held in place by a transparent foil in an over/under pattern. This foil-wire assembly (FWA) forms the electrical conductor, designed with surgical precision, creating a superior cell connection substrate that eliminates busbars.

Micro-wires

Film

LONG-TERM

PERFORMANCE

AUTOMATED CELL

CONNECTION

Our solar cells are linked robotically to form a cell string, eliminating manual soldering. The FWA interconnects the front side of a cell to the back side of the next cell, ensuring the proper connection from cell to cell.

Busbar-less cell

FWA

VIRTUALLY FREE OF MECHANICAL STRESS

BY ELIMINATING CELL SOLDERING

MATRIX CREATION

& LAYOUT

A 60 cell solar matrix is created by alternating 6 strings of 10 cells with the FWA. The matrix is covered with TPO encapsulant then placed between a sheet of anti-reflective tempered glass and a backsheet.

1

2

3

4

5

1. GLASS (Anti-reflective tempered)

2. TPO (Natural water repellent)

3. MATRIX (60 Solar cells)

4. TPO (Natural water repellent)

5. BACKSHEET (Aluminum & Polyolefin)

NO MANUAL SOLDERING

CELL INTERCONNECTION

LAMINATION AND ELECTRICAL CONTACT

In order to protect the cell matrix from environmental influences, the individual layers are bonded together by vacuum pressure and heat, to form an ultra durable solar laminate. This lamination process also forms the electrical connections between the wires and the cell.

Electrical contact point

with the cell metalization

The SmartWire to cell connection points are bonded at a lower temperature than the busbar soldering process. As a result, SWT induces less thermo-mechanical stress on the solar cell, significantly reducing the cell brittleness associated in busbar technology.

Lamination

Soldering

KEY TECHNOLOGY

FOR HIGH EFFICIENCY

SOLAR CELLS

ADVANCED ENERGY COLLECTION

The superior efficiency of SWT is driven by 18 micro-wires that form a dense grid of up to 2,660 contact points on the solar cell. This structure allows electrons to travel a shorter distance in order to be collected, thus reducing resistive losses.

SMARTWIRE

Lower Resistance = More Electricity

BUSBARS

Higher Resistance = Less Electricity

The lower resistance enables the extraction of more power from each individual finger, thereby increasing the power density when compared to traditional busbar panels.

OPTIMIZING THE

ENERGY COLLECTION

REDIRECTING  LIGHT

The round shape of the micro-wire introduces a light trapping effect which reduces the shading by 25% compared to busbar technology.

SMARTWIRE

BUSBARS

THE NEW LEVEL OF EFFICIENCY

MINIMIZING

MICRO-CRACK EFFECTS

Micro-cracks have a minimum effect on modules with SmartWire, since the FWA acts as a protective layer for the solar cell with the dense grid of up to 2,660 contact points.

SMARTWIRE

BUSBARS

Even a micro-cracked cell remains contacted, maintaining the energy collection at high levels.

Get in contact: Email info@solartechuniversal.com,

call 561-440-8000, or visit Riviera Beach, FL 33404

2018 SolarTech Universal, LLC. PRIVACY POLICY — TERMS OF USE,

Assembled in the US with domestic and imported parts*