A good way to maximize the output of a solar PV system is to mount it on a solar tracker . Solar trackers can significantly increase the power output of a photovoltaic system, allowing you to earn more from the feed-in tariff. However, as discussed in this article, the economics of solar trackers are more suitable for large installations, and in fact rely more on the level of on-grid tariff assistance provided by geographic location. What is a solar tracker? A solar tracker is a device that tracks the sun through the sky during the day, exposing your photovoltaic cells to more sunlight and generating more electricity. This is because PV cells work best when facing the sun directly. As the Earth's tilt relative to the Sun changes, the angle of the Sun in the sky changes throughout the year. In the summer, the sun is high in the sky and longer in the sky as it passes longer arc lengths. In winter, the sun is lower in the sky, and when it passes through a shorter arc, the time a...