This document discusses solar tracking systems, which orient solar panels, reflectors, or lenses towards the sun to improve efficiency. It describes how tracking systems in concentrated solar applications must precisely direct sunlight to maximize energy collection. Tracking with one axis can increase annual output by 30% over fixed mounts, and dual-axis tracking provides an additional 6% gain. The document outlines different types of solar collectors, tracking mechanisms, and actuators that enable single-axis and dual-axis systems to automatically follow the sun's movement and improve solar energy exploitation.