Tracking integration for rooftop CPV

Abstract

The last unique part of the CPV system that we have not discussed yet, and the part that most directly constrains CPV, is the sun tracker. The need for sun tracking is a direct consequence of the optical principles discussed in the last chapter: since a concentrator necessarily has a restricted acceptance angle, and the sun’s apparent position in the sky varies over the course of the day, and with the seasons, tracking is the only way to keep a system operating for more than, in most cases, a few minutes per day.