Source: DNV GLSource: DNV GL

The fourth annual PV Module Reliability Scorecard report detailing comparisons of photovoltaic (PV) module reliability test results has been issued by certification company DNV GL. The scorecard documents results of DNV GL’s PV Module Product Qualification Program (PQP). The PQP and resulting scorecard are voluntary programs that allow PV module manufacturers to demonstrate the reliability and durability of their products to the global industry, and provide PV equipment buyers and power plant investors with independent and consistent module reliability data.

The 2018 edition shows that the reliability and durability of modules submitted for testing generally improved in several of the test categories. However, performance declined in the damp heat test category. About 22 percent of manufacturers experienced at least one failure in overall testing.

The scorecard reveals:

  • An overall improvement in test results compared to 2017
  • Nine percent of bill of materials submitted failed one or more of the test criteria
  • Twelve percent of model types failed one or more of the test criteria
  • Failure rates were not linked to the geographic location of the factory or size of the manufacturer

The 2018 PV Module Reliability Scorecard is available as a complimentary download.

To contact the author of this article, email shimmelstein@globalspec.com