A recent study by the University of New South Wales found that roughly one in five solar panels degrade faster than expected, losing their energy-generating powers more quickly than anticipated. This is significant because most solar systems are designed to last around 25 years, with a gradual loss of efficiency over time. However, the study found that some panels degrade 1.5 times faster than the standard rate, and one in 12 decline twice as quickly, potentially reducing their useful life to just 11 years.
The study analyzed tens of thousands of solar systems operating globally and found that tiny hairline cracks and minor manufacturing flaws missed during quality control testing may be contributing to the rapid degradation of some panels. Researchers hope that the study's findings will help manufacturers improve their products and keep solar farms financially viable. The study also found that hot weather is linked to a faster decline in panel performance.
The study's findings are important for the solar industry, as they highlight the need for better quality control and more durable solar panels. Researchers are hopeful that their work will lead to improved manufacturing processes and more efficient solar systems.