500kW Industrial Rooftop Solar Solution: A Step-by-Step Installation Diary

Mar 19, 2026

500kW Industrial Rooftop Solar Solution: A Step-by-Step Installation Diary

Metal Sheet & Concrete Roof Mounting Systems

Capacity	500kW
Type	Commercial & Industrial (C&I)
Roof Types	Metal Sheet Roof + Flat Concrete Roof
Mounting System	Klamp-on Rail System & Concrete Ballasted Racking
Key Features	Waterproof Rail Connections, DC Cable Management, Earthing Continuity.

This 500kW industrial project perfectly demonstrates our capability to provide versatile mounting solutions for complex rooftop environments. By integrating a non-penetrating clamp system for metal sheet roofs and a ballasted, bridge-supported structure for concrete sections, we ensured 100% waterproofing and structural stability.

Our engineering focus went beyond simple hardware; we prioritized long-term reliability through professional cable management (heavy-duty trays) and a rigorous grounding system (earthing jumpers and flat iron continuity). This 'Ready-to-Install' modular design allowed the onsite team to maintain a rapid schedule from material delivery on Feb 27 to final module locking on March 18, significantly reducing overall labor costs.

Whether you are dealing with diverse roof types or high-wind coastal requirements, our team provides the engineering expertise to secure your solar investment for 25+ years.

Logistics & Material Delivery:

Heavy-duty solar rails and components arrived onsite, packed securely to ensure zero damage during transit.

metal roof clamp installation

Base Fitting:

Installing high-strength roof clamps and pre-positioning the AL6005-T5 rails for the metal roof section.

Rail Securing:

Tightening the mounting rails. Our system features a modular design for rapid alignment, reducing onsite labor.

Module Mounting:

Solar panels are secured using our specialized end/mid clamps with anti-slip design.

Install the grounding wire for the photovoltaic system

The grounding wire is installed to connect all metal components of the PV system to the earth, ensuring electrical safety by preventing electric shock and reducing the risk of lightning damage.

Earthing & Safety:

Implementing the grounding system with flat iron bars. Electrical safety and lightning protection are our top priorities.

Cable Tray Installation:

Professional management for DC cables using robust bridge trays to prevent wire sagging and UV damage.

DC Wiring:

Laying solar cables through protective conduits and trays, ensuring a clean and safe rooftop environment.

Ballasted Concrete Base:

Utilizing pre-cast concrete blocks as ballast to secure the high-strength Carbon Steel Structures without penetrating the flat roof's waterproof layer.

Hot-dip galvanized carbon steel solar racking installation

Solar grid-connected AC distribution cabinet for 500kW project

Grid-Connected Cabinet:

Arrival of the AC distribution and grid-tie system, ensuring seamless integration between the solar farm and the factory's power grid.

Waterproof Rail Connection:

Installation of specialized Water-Guide Rails and joint covers. This ensures efficient drainage and prevents water accumulation under the modules.

Poor drainage can lead to rust and reduced module efficiency. Our waterproof rail link technology (shown in our March 16th update) ensures that every drop of rain is directed away from critical connection points, extending the system's life by decades."

Water-guide solar rail connector and drainage system

Install modules and cable tray covers:
Mount the PV modules securely onto the structure and install cable tray covers to protect cables and ensure a clean, organized layout.

Final Module Deployment:

Panels are fixed using high-torque Pole Clamps (Hose Hoops) and specialized fasteners to ensure stability against high wind loads.

Solar module pole clamps and hose hoops for structural securing