Kyocera’s Solar Panels Seems to Degrade Slower | Sustainable Energy |

Solar panel systems from the Japanese manufacturer Kyocera that were installed in a small French near Lyon has been up and running for exactly two decades now.

This about how long the warranty for solar panels lasts. What is remarkable about the 20-year old solar panels is that they show much less degeneration than what is expected – 8.3% reduction in performance when output levels were measured and compared to original levels. In other words, these solar panels still performed at 91.7% of their original maximum power output!