Compare different types of solar tracking systems.

Solar trackers increase energy capture by following the sun. Types: Single-axis horizontal (most common utility-scale, rotates east-west on north-south axis, 15-25% gain, lower cost), Single-axis tilted (adjusts around tilted axis, suitable for higher latitudes), Dual-axis (tracks both altitude and azimuth, 25-40% gain, highest cost and maintenance), and Backtracking algorithms (avoid inter-row shading in mornings/evenings). Selection considers: site latitude, land cost, labor availability, wind loading, and incremental LCOE benefit. Single-axis dominates utility-scale; fixed mounts dominate rooftop.