Why LONGi Solar

LONGi Solar is committed to providing the best LCOE solutions as well as promoting the worldwide adoption of mono-crystalline technology.

Financial Health
  • Total assets increased 58.3% YOY

  • Gross profit reaches $186M in 2015

  • Revenue increased 61.7%YOY

  • Gearing ratio decreased to 44.6% in 2015

Morgan Stanley's
Top Investment Ideas

Listed No.1 in 1st Quartile

Top Module Supplier

Longi Silicon Materials(including LONGi Solar)has been the latest company to join “Silicon Module Super League”


This exclusive industry grouping now consists of seven companies forecast to ship more than 4GW of modules during 2017.


1st Class Partners
We establish the strategic cooperation with the leading solar enterprises such as HUAWEI, TBEA, NDNE, DuPont and UNSW.

HUAWEI Technology Co., Ltd.

Du Pont China Holding Co., Ltd.

3M Company

The University of New South Wales

3 IEC
Reliability Program

Power degradation <5% after DH300,TC600,HF30,UV45...


PID96h,PID300h and PID600h (85°C /85%RH)...


Power degradation <3% Dynamic mechanical loading (1000cycles)+TC50+HF10.

Quality Control System
  • Product and Control Desgin

    Comprehensive quality system Design (ISO 9001)

    New Product / Material Qualification

    Standardized Product Change Procedure

    3IEC Requirement

  • Comprehensive quality system management

    Vigorous Process Quality Control with 50+ Check/Control steps(FMEA, Control Pan,MSA),

    High accuracy/stability measurement system

  • Customer Satisfaction

    Recognition by Authorized Thrid Partites

    Continue improvement with customer feedback and internal FMEA

    Module performance tracing with customer

  • Continue improvement

    Whole process tracing by MES (Manufacturing executing system)

    Completed reliability monitoring procedure

    Co-working with industrial leading institutes and labs

Management System
CQC recognized LONGi Solar System:ISO 9001、ISO 14001、OHSAS 18001

Warranty
Warranty Certifications

10 years warranty for materials and craftwork

Output reached 83.8% in the 25th years

25 years linear power output warranty

Insurance Program insure LONGi Solar’s Limited Warranty

CE

LEC

CNAS

TÜV Rheinland

TÜV SUD

JET

UL

CQC

IAF

SA

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