From their website

 

Photovoltaic projects rely on high quality products that stand the test of time for inputs ranging from engineering design to financing and more. Trina Solar’s products have always maintained high reliability and solid performance based on our commitment to our quality-first policy. In our upstream business model, we tightly control quality over every step of the manufacturing process, from silicon crystallization to module deployment in the field. We guarantee the quality of our products with an industry-leading 25-year lifetime warranty.

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In our downstream business model ,Trina Solar follows strict compliance with national regulations and industry standards, including Chinese National Standards GB 50797 "Photovoltaic Power Station Design Specifications,” GB 50794 "Photovoltaic Power Plant Construction Specifications,” GBT 50866 “Design Code for Photovoltaic Power Station Connection to Power System and GBT 19939 "photovoltaic system Grid technology requirements,” among others. With an innovative solar design team, rigorous procurement procedures and experienced construction and operation team, we have more than 15 years’ worth of hands-on expertise in PV project development.

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