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| Definition | A metal structural system used to support and fix PV modules, serving as the "skeleton" of a power plant. |
| Key Functions |
1. Support and secure modules 2. Set the optimal angle for power generation 3. Withstand environmental loads (wind, snow) 4. Ensure structural safety for over 25 years |
| Primary Classifications |
1. By Installation Site: - Ground-Mounted System - Roof-Mounted System - Solar Carport System - BIPV (Building-Integrated PV) System 2. By Structure/Tracking: - Fixed-Tilt System - Adjustable System - Single-Axis / Dual-Axis Tracker |
| Core Materials |
1. Carbon Steel: The mainstream choice. High strength, low cost. Must be hot-dip galvanized for corrosion protection. 2. Aluminum Alloy: Lightweight, corrosion-resistant. Used for roofs, coastal areas. 3. Stainless Steel: Used for critical connectors or highly corrosive environments. |
| Key Components |
- Foundation - Post / Upright - Main Beam / Rail - Connectors (Bolts, Clamps) |
| Selection Considerations |
- Environmental Loads: Local wind and snow loads - Corrosive Environment: Enhanced protection needed for coastal/industrial areas - Budget: Initial investment vs. lifetime cost - Installation & Maintenance: Ease of installation and O&M requirements |













