Solar PV Mounting Structure

Depending on the application and installation method，Common specific names include:

• Solar Panel Mounting Bracket

• PV Racking System​

• Ground Mount Solar Rack​

• Roof Mount Solar Structure​

• Solar Tracking Mount​

1. Solar Panel Mounting Bracket

Features:

A basic component used to attach individual solar panels to a supporting structure (roof, ground, or pole).

Typically made from aluminum alloy or hot-dip galvanized steel for corrosion resistance and lightweight strength.

Simple design with pre-drilled holes and standard fasteners for quick installation.

Suitable for small-scale residential systems, DIY projects, or as part of a larger racking system.

Limited adjustability - usually fixed-angle or manually tiltable.

2. PV Racking System (Photovoltaic Racking System)

Features:

A complete modular framework that supports the entire solar array, including rails, clamps, end caps, splices, and grounding components.

Designed for high structural integrity to withstand wind loads (up to 240 km/h) and snow loads (up to 2.4 kN/m²).

Pre-assembled or field-adjustable components reduce on-site labor time by up to 30%.

Compatible with most standard framed solar panels (60-cell, 72-cell, etc.).

Available in both roof-mounted and ground-mounted configurations.

Often includes integrated cable management channels for clean wiring.

3. Ground Mount Solar Rack

Features:

Installed directly on open land using concrete foundations, driven piles, or screw anchors.

Ideal for large-scale utility solar farms, commercial installations, or rural properties with ample space.

Can be designed as fixed-tilt (optimized for local latitude) or adjustable-tilt (seasonal adjustment).

Higher energy yield compared to roof mounts due to optimal orientation and no shading from building structures.

Requires civil engineering work (excavation, foundation pouring), increasing initial cost but offering long-term stability.

Typical lifespan of 25–30 years with minimal maintenance.

4. Roof Mount Solar Structure

Features:

Specifically engineered for different roof types:

Flat roofs:​ Ballasted (concrete block) systems avoid roof penetration; tilt legs provide optimal angle.

Sloped roofs (asphalt shingle, tile, metal):​ Hook-based or rail-based systems with flashing seals to prevent leaks.

Metal standing seam roofs:​ Clamp-on systems require no drilling.

Lightweight aluminum construction reduces roof load (typically <15 kg/m² for residential).

Customizable rail lengths and inter-row spacing to maximize panel density.

Integrated water drainage paths and weatherproof sealing ensure roof integrity.

Installation typically takes 1–2 days for an average residential system.

5. Solar Tracking Mount (Sun-Tracking Mount)

Features:

Equipped with motorized actuators and sensors that automatically rotate panels to follow the sun's path throughout the day.

Two main types:

Single-axis tracker:​ Rotates along one axis (usually north-south), increasing energy yield by 15–25% over fixed mounts.

Dual-axis tracker:​ Rotates along both horizontal and vertical axes, achieving 25–40% more energy output.

Advanced models include GPS-based astronomical algorithms and real-time irradiance feedback for precise tracking (±0.5° accuracy).

Requires robust steel structure and deep foundation to handle dynamic loads and wind forces.

Higher upfront cost ($0.08–$0.15/W more than fixed mounts) but lower Levelized Cost of Energy (LCOE) in high-irradiance regions.

Recommended for flat, open terrain with minimal cloud cover (ideal for deserts, plains, and large utility projects).

Summary Comparison: