Image: Kiwa PVEL
On June 5, the world’s leading independent test laboratory, Kiwa PVEL, has officially released its 2025 PV Module Reliability Scorecard.
Nine manufactures have at least one model type listed as a Top Performer in each of the seven tests. Eight manufacturers have a single model type listed as a Top Performer in all reliability tests (TC, DH, MSS, HSS, PID and LID+LETID). Seven manufacturers are first-time Top Performers.
Across the over 300 unique model types listed as Top Performers, only 21 achieved Top Performer status in all reliability tests (TC, DH, MSS, HSS, PID and LID+LETID). Of those, only three were Top Performers in all reliability tests and PAN performance.
The PID and PAN results improved but the percentage of BOMs with < 2% degradation decreased for TC and DH. Power loss following MSS, HSS and LID+LETID continues to be minimal, but the module breakage rate for MSS and HSS has increased. UVID results are starting to improve, but are still a source of concern for some BOMs.
83% of module manufacturers and 59% of BOMs had at least one test failure, up from the 66% and 41% reported in the 2024 Scorecard, respectively. Module breakage during MSS and HSS was the leading failure type, but delamination, power loss, and junction box related issues also persist.
Source：Kiwa PVEL
