What is a solar tracker

A solar tracker is a device that directs a payload toward the sun.

The solar tracker is a power device that keeps the solar panel facing the sun at all times and allows the sunlight to illuminate the solar panel vertically at all times. The use of a solar tracker can significantly improve the power generation efficiency of solar photovoltaic modules. Solar trackers are present in all concentrator applications because such systems collect solar energy with maximum efficiency when the optical axis is aligned with incoming solar radiation.

Solar trackers can be divided into two categories: single-axis and dual-axis according to their structure. A single-axis solar tracker can rotate around its own axis and move in a single direction, while a dual-axis solar tracker can move in two different directions, constantly facing the sun. Of the two types of products, single-axis trackers have the larger market share.

Solar trackers are present in all concentrator applications and play an important role in improving the power generation efficiency of solar panels. In flat panel photovoltaic systems, trackers are used to minimize the angle of incidence between the incident sunlight and the photovoltaic panels; in concentrated photovoltaic (CPV) and concentrated solar power (CSP) applications, trackers are used to enable Optical components.

What is the difference between fixed photovoltaic brackets and tracking photovoltaic brackets?

Fixed photovoltaic brackets refer to bracket systems in which the orientation and inclination of the components will not change after installation. Based on the local geographical environment, climatic conditions and solar energy resources, the best orientation and angle are calculated in advance to obtain maximum solar radiation. . The advantages of fixed photovoltaic brackets are simple structure, good stability, low cost, and easy maintenance. The disadvantage is that the power generation efficiency is relatively low and it cannot adapt to changes in the sun's position.

Tracking photovoltaic brackets refer to the installation of a tracking system that allows the modules to automatically adjust their orientation and inclination as the sun moves, so that the sunlight is always perpendicular to the module surface to obtain maximum solar radiation. The advantage of tracking photovoltaic brackets is high power generation efficiency, which can increase power generation by about 20% to 40%. The disadvantages are complex structure, poor stability, high cost, and difficult maintenance.