Tracker, schmacker
Why bother with complicated solar trackers?
Since there is a finite life to solar panels, why not swap out the complexities of making, installing, and maintaining trackers for the extended life of solar panels by not having them always facing the sun full on? Buy a few more panels and put them in an arc, where some are facing the morning sun, some midday, some afternoon. Since (I assume) the life is proportional to the electrical output over time (measured in coulombs) ... one of many things I oughta look up to see if I'm all wet.