« Back

Stion’s “Simply Better” CIGS Module passes ‘Thresher’ test


Stion Corporation is proud to announce their “Simply Better” CIGS module has successfully passed the ‘Thresher’ test performed at the Renewable Energy Test Center (RETC), in Fremont, CA.

The Thresher test is intended to simulate at least 25 years of real world exposure to evaluate long term durability and performance. Harsh conditions induced over a six month period expose the modules to damp heat, humidity, freezing and dynamic mechanic load. To date, less than five of the top 30 photovoltaic module manufacturers in the world have successfully passed the thresher test.


Threser certification


The rigorous Thresher test consists of four individual tests during which modules undergo rapid temperature changes from as much as 194 °F (90 °C) under 85% RH down to -40 °F (40 °C):

  • The Humidity Freeze test consists of 5 different sub-tests including a UV soak, 50 hours of thermal cycling and 30 humidity freeze cycles.
  • Thermal Cycling test consists of 3 different sub-tests including a total of 600 cycles, during which STC peak power current is simultaneously applied.
  • Damp heat test consists of 2 different sub-tests for a total of over 2000 hours of continuous damp heat (at 85°C and 85% RH).
  • Dynamic mechanical test consists of 3 different sub-tests that test Stion frameless clamps by applying 1000 Pa of downward and upward pressure over 1000 cycles that last 30 seconds each.

Post testing degradation levels were well below the threshold limit needed to pass the thresher test.

The thresher test is the most demanding test in the industry and has been difficult for even the largest solar manufacturer’s to pass.  Passing the Thresher test demonstrates Stion’s dedication to quality and long term reliability,” said Bob Wieting, PhD and Chief Technology Officer at Stion.

Working with modules that have passed the Thresher test, such as Stion’s “Simply Better” CIGS modules will ensure you are working with technology that has undergone the most rigorous test in the industry.











For more information about Stion modules, please reach out to info@nullstion.com

« Back