The value proposition associated with large-format PV modules is so compelling that some industry analysts expect 500 W+ modules to account for 90% of the market by 2025. When evaluating large-format module designs for specific applications, however, keep in mind that upfront savings may come at a cost.

In May 2019, hail damaged some 400,000 modules at the Midway Solar generating facility in West Texas, resulting in a previously unimaginable $80 million in insured losses. Recognizing that basic certification test standards are inadequate to identify and quantify the project risks associated with hail, RETC developed its innovative Hail Durability Test (HDT) program.