The main component of any solar panel is a solar cell.
Output Warranty Term 25 year, Linear Output Decline, Year 1, Years 2 to 25,2.0% ,0.63%, Output at End of Warranty Term 84.8%, Materials Warranty Term, 25 years
Panasonic EverVolt EVPV380
Power output will be no less than 98% of the designated Maximum Power (Pmax) stated in the Product data sheet for the first year from date of purchase of the Product by the Owner and the power output degradation will be no more than 0.25% per year for the following 24 years, so that, at the end of the 25th year, the power output will be at least 92% of Pmax.
Q Cells Q.PEAK DUO XL-G10.C 480W
At least 98% of nominal power during first year. Thereafter max. 0.4% degradation per year. At least 93.95% of nominal power up to 10 years. At least 84.95% of nominal power up to 30 years
Q Cells Q.PEAK DUO ML-G10+ 400W
At least 98% of nominal power during first year. Thereafter max. 0.5% degradation per year. At least 93.5% of nominal power up to 10 years. At least 86% of nominal power up to 25 years.