PV modules typically degrade slowly—often losing less than 1% of their performance per year—making their degradation undetectable (within measurement uncertainty) for the first several years of operation.
For each year after the first year following the Warranty Start Date until the end of the applicable Limited Power Warranty Period, Jinko warrants that the Degradation Rate of Modules shall not exceed the
Typically, JinkoSolar panels are rated for a lifespan of 25 to 30 years, with manufacturers holding strict adherence to testing standards to validate these claims. This longevity, combined with
These panels exhibit a low average annual degradation rate of 0.4%, due to N-type cells, some models demonstrate even lower first-year degradation of no more than 1%, and some retain
h Series have efficiency ranging from 19.67% up to 20.74%. Jinko guarantees that its Cheetah series of panels will still maintain the standard 12-year product warranty and 25-year performance
The analysis of 80 primary studies, reporting 610 degradation rate observations, revealed a median degradation rate of 0.94 %/year and indicated that cell technology, mounting location, and
Field studies show that Jinko solar panels degrade at a rate between 0.35% and 0.60% per year after the first year. Most of the initial loss happens in the first year, then the rate stabilizes.
Degradation rates must be known in order to predict power delivery. This article reviews degradation rates of flat-plate terrestrial modules and throughout the last 40years.
Drawing on a wide range of academic studies, the paper systematically analyses the key factors affecting the performance of photovoltaic (PV) systems to provide in-depth understanding of
PDF version includes complete article with source references. Suitable for printing and offline reading.
