Product Specifications

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Product Description

Overview

Quick Details

Place of Origin: Henan, China

Brand Name: hetech

Model Number: HET-390S72A

Cell size: 156.75mmx156.75mm

Type: PERC, Standard Solar Panel

Panel Dimensions: 1956*992*35mm

Panel Efficiency: 19%

Certificate: TUV CE, "TUV/IEC61215/IEC61730/CE/PID/ISO "

Warranty: 25 YEARS, 25 Years Output Power Guarantee

Product name: solar panels 390w

Solar cell: mono 156*156 Cell

Frame: Anodized Aluminium Alloy

Glass: Heat shock resistance

Connector: Waterproof solar cable connector

High conversion efficiency: 20% high efficiency

Back Sheet: PET back

Packaging & Delivery

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Products Detail

1.Mono solar cell

1) Efficient PV conversion, stable performance

2)Unique etching process can increase the short-circuit current of the solar cell

3)Advanced PECVD technology provides well-proportioned navy blue silicon nitride anti-reflection velum

4)Screen printing patterns are accurate and smoothness of the electrode is improved thus making the cell easier for welding and laser cutting

2.Frame

1)High quality, strictly quality inspection during production and whole inspection before package

2)Hundreds of standard designs can be available and supplied

3)Simple and easy installation

4)High brightness and hardness

5)Strong coated adhesion

6)Anti-scratch, smoothness

3.Glass

1)High luminousness, high stability, low reflectivity, waterproof and high safety

2)High transparent AR coating ultra clear low iron glass

4.Junction box

1)Power loss less than 0.3Watt

2)Simple, quick and safe installation

3)IP65:the innovative sealing design, dust-proof and water-proof

4)Strong current and high voltage load capacity

5)Excellent material which meets UL94-V0 fire safety standard for long term outdoor application which it's outstanding and anti-ageing, waterproof and UV-resistance propeties

5.MC4 Connector

1)Highly robustness, UV-Resistance

2)Connector adopts touch and insertion of reed with inner-knob type

3)Auto-lock equipment of male and female points enable connection more easy and reliable

4)Popular figure suits most of field installation

5)Accommodates PV cable with deferent insulation diameters

6)The maximal working current will be changed when fixed with different types of diode

Product Highlight

WHAT'S "PID"

Potential Induced Degradation (PID) is an undesirable property of some solar modules. The factors that enable PID (voltage, heat

and humidity) exist on all photovoltaic (PV) systems, but the effect does not occur on all or even most

PV systems. According to Dr. Peter Hacke of the National Renewable Energy Laboratory (NREL), "All c-Si [crystalline silicon]

modules have elements of reversible and non-reversible [PID] mechanisms. The key is to understand the extent to which modules

experience these mechanisms."

THE CAUSES OF PID

Potential Induced Degradation, as the designation implies, occurs when the module's voltage potential and leakage current

drive ion mobility within the module between the semiconductor material and other elements of the module (e.g. glass,

mount and frame), as shown in Figure 1, thus causing the module's power output capacity to degrade.

The ion mobility accelerates with humidity, temperature and voltage potential. Tests have revealed the relationship of

mobility to temperature and humidity: "Planar contact with the panel surface also causes a capacitive coupling to the cells,

resulting in a capacitive leakage current of varying strength." 1

The PV system and environment interact to cause PID. The conditions necessary for the occurrence of PID involve

(i) environmental factors, as well as factors involving (ii) the system, (iii) the module, and (iv) the cells. 2 3 "While the

environment is set for each individual installation, it is possible to prevent PID by properly controlling only one of the factors

(ii), (iii), or (iv)." 4 All four factors are discussed, in turn, below

1.Environmental Factors

Because relative humidity and temperature are known to adversely affect PV plant performance in general, portions of both

Underwriters Laboratories (UL) and International Electrotechnical Commission (IEC) module testing protocols involve damp heat,

temperature cycling, and freeze/thaw cycling. These same environmental factors also affect PID, with the degradation being

accelerated by increases in temperature and/or relative humidity.

2.System Factors

At the system level, the most significant impacts are the module's voltage potential and sign, which depend on both the

module's position in the array and the system grounding topology. There are numerous considerations affecting system and inverter

classification, but for the purposes of PID, the inverter(s) can be classified based on the voltage experienced by the arrays. As

shown in Figure 2, four basic classifications are possible.

3.Module Factors

The choice of glass, encapsulation, and diffusion barriers have all been shown to have an impact on PID. For the front glass,

several studies have shown sodium to exhibit a causative factor.

THE EFFECTS OF PID

As shown here by the reductions in shunt resistance (Rsh), maximum power point (MPP) and open circuit voltage,

PID can significantly reduce yield in PV plants.

Production Line

Standard Automatic Production Line

At HETECH Solar, we scour the globe in search of the most suprior materials the industry has to offer. Combined with our near fully automated manufacturing system, we offer consistently high power modules that will last a lifetime. Each material has been carefully tested to meet our best in class standards.

Solar cell test                                         Solar cell Welding                                Lamination layer

EL test                                                     Lamination                                              Trimming and Framing

Power test & IV.                                   Package                                                   Delivery

Advantages

Can generate electricity without consuming fuel under the sun.

Save time and money .Safty,Eco-friendly

Certification

HETECH aiming to become "The specialist of solar power industry", our R&D team always concentrating on new product development, production technology update to ensure stable product performance. We adhere to the management concept of "Quality of survival" and marketing policy of "customers first, quality first, service first". Relying on the "marketing and customers oriented" enterprise value, we are dedicated to providing excellent solar products with reasonable price, good reputation, excellent service for customers all over the world.

Packing & Delivery

Packing

Normally packing: 1pc/2pcs/3pcs/10pcs/25pcs per carton

Individual packing requirement is acceptable.

Shipping

Material in stock can be produced (procedure 5-20days) right away after pre-payment confirmation.

We will find the most suitable and safe mode of transportation,don't worry about package damage or loss. It takes about 7~15 working days to worldwide.

Please note us your contact details include your phone number for easy contacting from shipping company officer.

Payment

T/T , L/C, Western Union, Money Gram Paypal.

Supply Ability

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Packaging and Shipping

Lead time

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Packaging details

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