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One in five solar panels degrade too fast, lasting only 11 years due to hidden flaws, despite lasting 25 in design.
A University of New South Wales study finds that about one in five solar panels degrade faster than expected, potentially lasting only 11 years instead of the designed 25.
While most panels lose 0.9% efficiency annually, some degrade 1.5 to twice as fast due to undetected manufacturing flaws like hairline cracks or defects missed in quality control.
These issues cause sudden performance drops and occur across all climates, with hot weather accelerating but not causing the problem.
Current testing methods fail to replicate real-world conditions, prompting experts to call for improved standards to ensure long-term reliability and financial stability for solar farms.
Uno de cada cinco paneles solares se degrada demasiado rápido, durando solo 11 años debido a defectos ocultos, a pesar de durar 25 en el diseño.