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Discover advanced solar tracker controllers enabling higher energy yield, precise tracking, weather protection, and smart PV plant operation.
Wondering if a single-axis solar tracker is right for your utility-scale project? This guide breaks down how it works, its key components, and benefits for maximizing ROI.
What Is Backtracking in Solar Tracking Controllers? A Complete Guide Understand how backtracking prevents row-to-row shading, boosts energy yield, and lowers LCOE for utility-scale solar projects. What is Backtracking? Backtracking is a control strategy used in solar tracking systems to avoid row-to-row shading during low sun angles (early morning and late afternoon). Instead of pointing modules directly at the sun, the tracker intentionally tilts slightly away so that the front row no longer casts shadows on the next row. This small angle adjustment often increases total energy yield because it prevents large shading losses that more than offset the imperfect sun-facing angle. How a Tracking Controller Performs Backtracking Modern tracker controllers compute backtracking decisions from a mix of inputs: Solar position (azimuth and elevation) — astronomical algorithms. Tracker geometry — row spacing, module width, standoff height. Site slope and terrain variations. Real-time or historical shading and performance data (when available). The controller continuously evaluates whether normal tracking or backtracking yields more energy and switches modes accordingly. Two Common Backtracking Algorithms 1. Standard Backtracking (Flat Terrain) Uses geometric formulas to detect potential shading and adjusts tilt angles to eliminate it. This is effective for large, flat utility sites where row geometry...
Comprehensive overview of solar tracking algorithms for PV controllers, including SPA, Bourges, Wang, and Grena. Learn recommended algorithms for different solar projects.

Discover Good Future’s Zn-Al-Mg Solar Bearings — engineered for superior corrosion resistance, high strength, and long lifespan. Made with advanced Zinc-Aluminum-Magnesium coated steel, these bearings ensure stable performance for solar tracking systems in harsh outdoor environments.

Protect your solar investment with the Good Future Solar Tracker Controller. Features high wind, snow, voltage, and limit angle protection for reliable year-round performance.