Introduction

Mitsubishi Electric -PV Module Monocrystalline

The technology and design of our products incorporates our comprehensive experience and extensive know-how in creating photovoltaic modules

  • Client

    Mitsubishi Electric India Pvt. Ltd.

  • Services

    Solar Panel

  • Technologies

    Photovoltaic

  • Dates

    13/03/2018

Description

Technology

 

Mitsubishi Electric is constantly pursuing the latest in technological innovations and adapting the newest breakthroughs into our photovoltaic products.

 

Selective Emitter
In a standard doping process, silicon wafers are doped with phosphorus to create a P/N junction. The level of doping concentration was a trade-off between conductivity with the cell electrodes and carrier charge recombination. Higher concentration levels leads to higher conductivity, but more carrier charge losses, and vice versa. As a solution, Mitsubishi Electric has introduced a new selective emitter process in which only the area in contact with the electrodes is doped with high concentrations to maintain both high conductivity and low carrier charge losses. This improvement has resulted in an increase in cell output of approximately 5%.
 

 

Half-cut Cell
By reducing the area of each cell and connecting them in a parallel formation, the amount of electrical current carried by each busbar is reduced by half. This results in the decreased of electrical resistance within the busbars and an increase in overall efficiency of about 2.5%.

 

 

 

By using half-cut cells, the electrical current (i) flowing in each busbar is halved.
Therefore, the amount of internal losses in a half-cut module is 1/4 of a full sized cell module.


 

 Busbar Cell
Through an industry-leading innovation of integrating 4 busbars into each cell, internal electrical resistance is reduced, boosting cell output by 3%*. This is possible because the distances between the busbars are shorter and less current flows through each smaller electrode where resistance is the highest.

*Approximate improvement compared to a standard 2 busbar cell.

 

Newly Re-designed Junction Box
Our field-proven high safety junction box has been re-designed and optimized for use with monocrystalline cells. As one of the most critical parts of the module in terms of safety, our junction box features a waterproof, flame-resistant 4 layer barrier of protection. Combined with highly heat-resistant diodes, efficient heat-sink, and secured intertwining tab connections, our junction boxes boast a top-class level of safety.

 

Anti-reflective Glass
An anti-reflective coating has been added to the glass of our modules.
It improves the light transmittance of the glass by reducing the amount of reflection on the surface.
This improvement has led to a module output increase of 2%. Furthermore, Mitsubishi Electric modules use a non-porous type of anti-reflective coating, which is more resistant to the adhesion of dust than porous types.

 

Lead-free Solder
Mitsubishi Electric was the first Japanese manufacture to introduce (and still use) 100% lead-free solder in the inter-cell connections as another initiative contributing to environmental protection.

MLE Series

Manufacturer

MITSUBISHI ELECTRIC

Model name

PV-MLE255HD

PV-MLE260HD

PV-MLE265HD

Cell type

Monocrystalline silicon, 78mm × 156mm

Number of cells

120 cells

Performance at STC

Maximum power rating (Pmax)

255W

260W

265W

Warranted minimum Pmax

255.0W

260.0W

265.0W

Tolerance of Pmax

-0/+5%

Open circuit voltage (Voc)

37.8V

38.0V

38.2V

Short circuit current (Isc)

8.89A

8.98A

9.08A

Maximum power voltage (Vmp)

31.2V

31.4V

31.7V

Maximum power current (Imp)

8.18A

8.29A

8.38A

Performance at NOCT (at 800W/m²)

Maximum power rating [Pmax]

185W

189W

192W

Open circuit voltage [Voc]

34.5V

34.7V

34.9V

Short circuit current [Isc]

7.19A

7.27A

7.35A

Maximum power voltage [Vmp]

28.0V

28.2V

28.4V

Maximum power current [Imp]

6.60A

6.69A

6.76A

 

Normal operating cell temperature (NOCT)

45.7°C

Maximum system voltage

600V (UL), 1000V (IEC)

Fuse rating

15A

Dimensions

1625×1019×46mm (64.0×40.1×1.81inches)

Weight

20kg (44lbs.)

Output terminal

(+)800mm/(-)1250mm with SMK (PV-03) connector

Module efficiency

15.4%

15.7%

16.0%

Packing condition

2 modules per carton

Certificates

IEC 61215 2nd ed., IEC 61730, UL1703

 

Mitsubishi Electric

India

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