First Solar modules have been verified by independent engineers and certified to international performance and safety standards by third party laboratories around the world, including installations with NREL for over 16 years. With our Series 4™ Modules, we have made numerous advancements to increase long-term quality and reliability, as well as efficiency.
The Thresher and TUV Long-Term Sequential Tests go far beyond standard IEC certifications to test long-term performance that is more indicative of a 20+ year field operational life. Our thin film modules are one of only five modules in the world to pass both tests, indicating best-in-class performance and durability over the life of the system.
By combining superior energy yields with world-leading reliability, First Solar’s advanced PV modules drive a lower LCOE and minimize risk for plant owners.