Metal Structures for Ground-Mounted Solar Parks in Tashkent

Specifics of Ground-Mounted Solar Parks in Tashkent’s Climate

Tashkent and nearby regions offer high solar generation, but the climate imposes strict requirements on metal structures:

• Summer heat — heating of metal and panels, thermal deformation, accelerated corrosion of coatings.
• Temperature fluctuations — daily and seasonal variations create additional stresses in fastening joints.
• Dust and sand — abrasive impact on coatings, increased requirements for sealing and paint quality.
• Wind — open areas, gusty winds, sometimes dust storms.
• Soil characteristics — fill soils, loams, areas with a high groundwater level.

Therefore, the technology for manufacturing and installing metal structures for ground-mounted solar parks in Tashkent must take into account not only the design load from the panels, but also local climatic conditions, soil type, and operating mode (energy park, agro-PV, covered parking, etc.).

Types of Metal Structures for PV Parks and Their Applications

Several basic types of metal structures are used for ground-mounted solar plants.

1. Fixed Support Rows (fixed‑tilt)

A classic solution for large fields of solar panels:

• Vertical supports — driven piles, screw piles, or concrete foundations with embedded parts.
• Horizontal beams and trusses — carry the rows of panels.
• Mounting rails and fasteners — connect the panels to the supporting frame.

Suitable for:

• utility-scale PV plants on free land plots;
• logistics complexes with large vacant areas;
• agricultural enterprises (agro-PV with increased clearance).

2. Single-Post and Double-Post Structures

• Single-post — economical in terms of steel consumption, convenient on level ground.
• Double-post — more stable on weak soils and under high wind loads.

The choice depends on:

• length of the panel row;
• installation height;
• soil type and frost penetration depth;
• requirements for vehicle access and maintenance.

3. Structures for Canopies and Car Parks (solar carport)

They differ by increased height and additional safety requirements:

• reinforced columns and trusses;
• well-designed drainage system;
• possibility of integrating lighting and cable ducts.

4. Specialized Fasteners and Mounting Rails

A separate category is fasteners for solar panels and mounting rails:

• rails and profiles (C-, Z-, Ω-shaped);
• clamps (end and mid clamps);
• brackets and connecting elements;
• embedded parts and base plates.

The quality of these elements often determines the service life of the entire system: loosening of fasteners or corrosion of a rail leads to misalignment and risks of panel damage.

Choice of Materials: Carbon Steel, Galvanized Steel, Stainless Steel, and Combined Solutions

The material for metal structures for PV plants in Tashkent is selected based on a balance of cost, service life, and operating conditions.

Carbon Steel with Protective Coating

• Square/rectangular hollow sections, channel, angle, sheet.
• Protection: powder coating, primer-enamel, combined systems.

Advantages:

• availability and well-known processing technology (laser cutting, metal bending, welding);
• flexibility in cross-sections and configuration (custom manufacturing to order);
• convenient for large load-bearing elements (supports, trusses).

Disadvantages:

• increased requirements for surface preparation and painting quality;
• need to monitor the condition of the coating during operation.

Hot-Dip Galvanizing / Galvanized Rolled Products

• Used for posts, beams, mounting rails, and small fasteners.

Advantages:

• high corrosion resistance in dusty and humid conditions;
• uniform coating of hard-to-reach areas.

Disadvantages:

• limitations on welding (bolted connections are preferable);
• strict adherence to technology required during subsequent machining.

Stainless Steel

Used selectively:

• for fasteners and elements exposed to constant moisture;
• in joints where durability and minimal maintenance are critical.

Advantages:

• maximum corrosion resistance;
• stable appearance.

Disadvantages:

• higher material cost;
• more complex machining and welding.

Combined Solutions

In practice, a combination of materials is used to optimize the budget:

• main supporting frame — carbon steel with high-quality powder coating;
• posts and elements in the soil contact zone — galvanized profile or steel with enhanced protection;
• fasteners and specific joints — stainless or galvanized steel.

This approach allows balancing cost and service life, especially on large projects.

Technological Chain of Production: From Technical Specification to a Ready Fastening Kit

Manufacturing metal structures for solar parks is a sequence of stages where errors at early phases significantly increase installation costs.

1. Analysis of the Technical Specification and Initial Data

At this stage, the following are defined:

• PV plant capacity and number of panels;
• type and dimensions of modules, layout scheme;
• requirements for height, tilt angle, and orientation;
• data on soils and wind loads;
• delivery format: set of parts, large assembly units, or turnkey installation.

2. Engineering Design and Detailing

• development of a 3D model of the metal structures;
• detailing down to individual elements (rails, brackets, plates);
• preparation of cutting plans for laser cutting and metal bending;
• approval with the client.

3. Laser Cutting and Metal Bending

• high-precision laser cutting of sheet and profiles to specified dimensions;
• metal bending to produce mounting rails, brackets, stiffeners;
• marking of parts for easier installation on site.

Accuracy at this stage reduces fitting and welding time during installation.

4. Welding and Assembly of Units

• welding of trusses, frames, support posts using assembly jigs;
• control of geometry and weld quality;
• preparation of locations for bolted connections.

Some units may be supplied disassembled to reduce logistics costs.

5. Surface Preparation and Powder Coating

• cleaning and degreasing of metal;
• application of primer (if required);
• powder coating with curing in an oven.

For Tashkent’s climate, it is important to select:

• coating thickness;
• powder type (UV and temperature resistance);
• color (affects heating and appearance).

6. Kitting and Shipment

• forming kits by PV plant rows/sections;
• packing fasteners and small parts into labeled boxes;
• preparation of assembly drawings and bills of materials.

This approach simplifies the work of the EPC contractor on site and reduces the risk of installation errors.

Design and Structural Analysis of Metal Structures Based on the Client’s Technical Specification

The key stage is calculation based on the technical specification. Without it, it is impossible to correctly estimate either cost or timelines.

The calculation usually includes:

• static and wind analysis of load-bearing elements;
• selection of profile cross-sections and metal thicknesses;
• calculation of panel fastening joints and inter-row bracing;
• verification of deformations due to thermal expansion;
• assessment of installation labor intensity.

For different project types (investment park, agro-PV, car park with solar canopy), calculation approaches differ:

• for agro-PV, clearance and machinery access are critical;
• for car parks — safety of people and vehicles, snow and wind loads;
• for industrial fields — optimization of steel consumption and installation speed.

The more detailed the technical specification, the more accurate the calculation and the lower the risk of adjustments during the process.

Installation Under High Temperatures and Variable Soil Conditions

Installation of metal structures for ground-mounted solar parks in Tashkent has its own specifics.

1. Site Preparation and Layout

• geodetic survey and staking of row axes;
• verification of elevations and slopes;
• optimization of row placement considering shading.

2. Construction of Foundations and Supports

Options:

• driven piles (fast installation, minimal concrete);
• screw piles (convenient on weak soils and with complex logistics);
• concrete footings or pile caps with embedded parts.

In high temperatures, it is important to control:

• concrete curing (for concrete solutions);
• quality of anti-corrosion protection in the soil contact zone.

3. Installation of the Supporting Frame

• installation of posts by height and axes;
• installation of trusses and longitudinal beams;
• verification of frame geometry and rigidity.

For bolted connections, it is important to observe the tightening torque and use appropriate fasteners (galvanized, and stainless if required).

4. Installation of Mounting Rails and Fasteners

• fastening mounting rails to the supporting frame;
• installation of clamps, brackets, and connecting elements;
• verification of fastening spacing in accordance with panel datasheets.

5. Panel Installation and Final Inspection

• placing and fixing panels on the rails;
• checking gaps and flatness of rows;
• checking all threaded connections.

When installing in heat, thermal expansion must be considered:

• avoid excessive “clamping” of panels;
• leave technological gaps in accordance with the manufacturer’s recommendations.

What Affects Manufacturing and Installation Timelines

Timelines depend not only on PV plant capacity, but also on several technological factors:

• Completeness and quality of the technical specification — the more initial data, the faster the calculation and detailing.
• Type of structures — standard typical solutions are manufactured faster than fully custom ones.
• Steel volume and range of parts — a large number of unique items increases production preparation time.
• Production load — availability of free laser cutting, bending, welding, and coating lines.
• Logistics complexity — distance of the site from Tashkent, accessibility of access roads.
• Seasonality — peak demand for PV installation falls in the warm period, which may affect the work schedule.

At the calculation stage, a preliminary schedule is usually drawn up:

• design and detailing;
• manufacturing and coating;
• delivery and installation.

Factors Shaping the Cost of Metal Structures for PV Plants

A specific price without a technical specification is incorrect, but the main cost factors can be highlighted.

For an accurate commercial offer, an individual calculation based on the technical specification is required, taking all these parameters into account.

Typical Mistakes When Ordering and Installing Structures for Solar Parks

1. Incomplete technical specification at project start
   Lack of data on soils, wind loads, or panel type leads to recalculations, delays, and higher costs.

2. Transferring solutions from another region without adaptation
   Structures designed for a different climate may not account for dust, heat, and wind specifics of Tashkent.

3. Saving on coating and metal protection
   Reducing powder coating thickness or abandoning galvanizing in critical zones accelerates corrosion and shortens service life.

4. Overly thin metal without verified calculation
   Attempting to reduce steel consumption without engineering justification leads to deformations and operational issues.

5. Lack of part marking and assembly drawings
   On site, this results in confusion, delays, and errors when assembling rows.

6. Ignoring thermal deformations
   Rigid fixation without gaps can cause coating cracking and loosening of fasteners.

7. Unprepared site and poor geometry control
   Violations of elevations and axes complicate installation and affect panel row flatness.

FAQ on Metal Structures for Ground-Mounted Solar Plants

1. Can standard typical structures be used for any site?
Typical solutions speed up the project but must be checked for specific soil, wind loads, and layout. In most cases, they are adapted to the site.

2. What material is optimal for Tashkent?
Most often a combination is used: main supporting frame from carbon steel with high-quality powder coating, posts and fasteners — galvanized, critical joints — stainless if necessary.

3. How long does it take to manufacture metal structures for a PV plant?
The timeline depends on plant capacity, structural complexity, and production load. A preliminary schedule can be provided after analyzing the technical specification and approving the scheme.

4. Is it possible to order only manufacturing without installation?
Yes, contract manufacturing is possible: custom production according to your design with laser cutting, bending, welding, and coating, followed by delivery of kits to the site.

5. What format of technical specification is needed for calculation?
At minimum — PV plant capacity, panel type and size, layout scheme, requirements for height and tilt angle, soil and region data, desired delivery format (kits, turnkey installation).

6. Is it possible to upgrade an existing solar park?
Yes, but a survey of existing metal structures, assessment of their condition, and calculation of additional loads are required. Sometimes partial replacement of joints and fasteners is more cost-effective.

7. How is the quality of metal structures controlled?
At the plant, geometry, weld quality, cutting and bending accuracy, coating thickness and uniformity are controlled. On site — compliance with design elevations, axes, and tightening torques.

8. Does coating color affect PV plant performance?
Impact on generation is minimal, but it significantly affects metal heating and coating durability. Neutral shades resistant to UV and heating are often chosen.

How to Prepare a Technical Specification and What Data Are Needed for Calculation

To obtain an accurate calculation and understanding of timelines, it is important to prepare a basic data package in advance.

Recommended content of the technical specification:

1. General project data

   • region and exact location of the site;
   • planned PV plant capacity (kW/MW);
   • format: ground-mounted park, agro-PV, car park with canopies, etc.

2. Information on solar modules

   • manufacturer and model of panels (if known);
   • module dimensions and weight;
   • layout scheme (number of panels per row, number of rows).

3. Requirements for structures

   • installation height of the lower/upper edge of panels;
   • tilt angle and orientation;
   • requirements for access roads and maintenance machinery.

4. Soil and climatic conditions

   • soil type (if there is a report — a brief description);
   • site specifics (slope, fill soil, high groundwater level);
   • restrictions on foundations (minimum concrete, ban on pile driving, etc.).

5. Preferences for materials and coating

   • base material (carbon steel, galvanized, combined option);
   • coating requirements (powder coating, color, enhanced protection);
   • desired service life.

6. Interaction format

   • manufacturing of metal structures only;
   • manufacturing + supervision of installation;
   • full cycle: design, manufacturing, and installation.

Conclusion and Call to Submit a Request for Calculation

Metal structures for ground-mounted solar parks in Tashkent’s climate are not just “steel under the panels”. The correct choice of materials, manufacturing technology, and installation quality determines the plant’s service life, investment volume, and downtime risks.

To obtain an optimal solution in terms of design, timelines, and budget, it makes sense to start with a professional calculation based on your technical specification.

Submit a request for calculation

For an initial calculation, please specify:

• city and location of the site;
• planned PV plant capacity (kW/MW);
• project type (ground-mounted park, agro-PV, car park/canopy, etc.);
• known panel data (model, dimensions, quantity);
• preferences for height and tilt angle;
• brief description of soil and site specifics;
• preferences for material and coating (if any);
• work format: manufacturing only or manufacturing + installation;
• desired project commissioning dates;
• contact details for feedback.

Based on this data, a technical proposal, indicative timelines, and a detailed calculation of metal structures for your project in Tashkent or the region can be prepared.