My System was installed Sep 21, 2016 and has operated nearly continually up to the present. I have only had to replace three optimizers over that time frame. I specified the system components and my son installed the system. Here is the degradation curve for the system over the past nine years. I have tried to adjust the data for weather conditions to remove that extraneous variability. The first six months of 2022 was unusually dry and probably accounts for the high production. The first half of 2023 were unusually wet and probably cause the low production that year. The shaded area are the 95% confidence intervals for the data.
