30 First Third Party 25/30
In-house quality tests PV company to receive UL's Client Test Data Program Certification Verified PAN files for all products Years of guaranteed performance

Photovoltaic projects rely on high quality products that stand the test of time for project inputs ranging from engineering design to project financing and more. Relative to industry peers, Trina products have a strong track record of reliability and performance in the field. As a vertically integrated company, Trina tightly controls quality at every step from silicon crystallization to module deployment in the field. Ultimately Trina quality is guaranteed by a 25-year industry leading warranty.

We invite you to see our commitment to quality for yourself and come visit us in Changzhou.


With over 30 in-house tests and a state of the art research and development lab, Trina goes beyond requirements to deliver the highest quality product to customers. From one end of the supply chain to the other, customers can trust the quality and reliability of Trina.

Silicon Quality Module Quality UV
Mechanical Loading
Power Determination
Purity test
Electrical properties test

Mechanical load, UV, Thermal cycling, Humidity freeze/Humidity, Damp heat, Reverse current overload, Material HAST, Power measurements test, Strain relief test, Push test, Dry & wet insulation-resistance test, Outdoor exposure test, Hot-spot test, Bypass diode thermal test, Temperature test, NOCT test, Hail test, Salt mist corrosion testing, Water spray test, Cut test, Bonding path resistance test, Impact test, Cut tusceptibility test, Partial discharge test, Robustness of terminations test.

Wafer Quality
Material properties test
Electrical properties test
Geometry test
Cell Quality Module Material Quality
Visual Inspection
Electrical Parameter Test
Peeling Test
EL Test

DSC, TGA, SDT, TMA, DMA, Rheological measurement test, FTIR, Water transmission rate test, Colorimetric test, Light transmission/reflection rate test, Metal impurity content test.


Trina has partnered with key independent certification laboratories in order to improve monitoring and standards.

The Renewable Energy Test Center verifies Trina PAN files and specifications to ensure high quality, reliable products

Trina Solar is the first PV firm to receive the Client Test Data Program (CTDP) Certification from UL

- This certification allows Trina Solar laboratories to independently test for and issue UL recognized data, affirming that testing staff expertise, standards and capabilities are of the highest caliber in the PV industry


Our Limited Manufacturer's Warranty for Trina Solar modules guarantees materials and workmanship for 10 years and power for 25 years on a linear degradation schedule.

Multicrystalline Products
Guaranteed power warranted at 97.5% of nameplate power in year one and 0.7% less each year thereafter, ending with 80.7% of nameplate power guaranteed in the 25th year after the warranty start date

Monocrystalline Products
Guaranteed power warranted at 96.5% of nameplate power in year one and 0.68% less each year thereafter, ending with 80.18% of nameplate power guaranteed in the 25th year after the warranty start date

Download detailed warranty information


In addition to our comprehensive warranty terms, Trina Solar has purchased product warranty insurance to "back-stop" our product warranty. Customers who choose this warranty insurance will enjoy a global, irrevocable and immediate insurance-backed warranty, which provides third-party rights to the insurance in case of insolvency or bankruptcy. For more details click here, or contact us for more information on this service.

In the field

Trina products have a long history of high quality and superior performance in the field.

Name: Location: Module: Size: Installed:
Fustiñana 02-SOC Fustiñana Spain TSM-PC05 220-240W 5 MW (2.132 MW of Trina Panels) Aug. 2008

Test results, Total output, Mar.10 to March 11, in kWh*

Total output in kWh from March 10 to March 11 is 22% higher than estimated

*Nominated to STC-output, based on 113,4kW installation
Source: Target output data based on JRC software, actual output data provided by OPDE