CFV Labs 40 Year PV Module Reliability Testing Program

• PV Module reliability testing horizons need to correlate with financial modeling assumptions.

• CFV Labs has developed a comprehensive 40 year bankability testing program based on IEC 63209 with technology specific customization.

• Includes tests for material durability, cell degradation, mechanical durability and performance testing. 

CFV Labs PV Module Module Backsheet Testing

• CFV Labs has tested both older and newer backsheets to the new IEC TS 63209 backsheet testing protocol.

• We find that both older and newer backsheets can fail this test.

• Module construction is important, not just backsheet material.

• Ongoing testing at CFV is pushing the expected horizon of backsheet tests out to 40 years. 

CFV PV Module Bankability Program

• Comprehensive bankability testing program based on IEC 63209 with technology specific customization.

• Includes tests for material durability, cell degradation, mechanical durability and performance testing.

• Third party BOM verification and build witness. 

• Report sharing with investors and IEs.

Cell Degradation Testing

• Both LID and LeTID can be problems with newer technology modules, especially modules made from PERC cells, and some bifacial modules.

• LID and LeTID operate via different mechaninsms and on different time scales and and may actually overlap, making disentangling the effects problematic.

• CFV has a protocol designed to isolate and quantify each effect to the extent possible.