Gorewatt GMSee

Designing best mounting structure for Solar farms in India

This blog explores the most effective mounting structures for solar farms and helps you understand which design is best suited for your needs. 

  1. Which is the best structure design for solar farms?

Mostly GMS are widely used options for solar farms. 

  1. Why is GMS best design for SolarParks?

Maximum energy generation,  

Cost effective 

Superior scalability 

Good utilization of land 

 Optimal tilt 

Flexibility to integrate tracking systems  

Better performance 

Easy installation and maintenance 

  1. Structures for solar parks

3.1. Ground-Mounted 

GMS is the most commonly used type of mounting structure for solar farms because it is available for lesser expenses and is easy to install. 

3.2. Elevated Structures 

When land has uneven terrain, risk of flooding, or multiple use (e.g., agriculture), in such cases, Elevated Structures are used. It is priced on the higher side, but it adds flexibility required in an uneven landscape. 

3.3. Fixed tilt mounting structure 

In India most widely used mounting systems in solar farms are the Fixed tilt structures. 

How it works: 

In this type Solar panels are installed at a fixed angle, basically optimized based on the basis of the given site’s latitude to receive maximum sunlight throughout the year. 

Advantages: 

    • Lower cost of materials and installation 
    • Lesser components and simple design 
    • Minimal maintenance requirements 
    • Highly reliable and longer lifespan 

Disadvantages: 

    • Does not adjust to the sun’s movement 
    • Slightly lower energy output compared to other tracking systems 
    • Suitable for: 
    • Projects where cost efficiency and reliability are top priorities. 

3.4. Single axis tracking system 

Single-axis trackers are gaining popularity, especially in large-scale solar farms. The panels adjust themselves in this case to receive proper and maximum sunlight throughout the day and the year. 

How it works: 

Panels rotate along usually east to west on one axis to follow the sun’s path during the day. 

Advantages: 

    • Maximum utilization of available sunlight 
    • Higher energy generation compared to fixed tilt 
    • Improved performance even during morning and evening hours 

Disadvantages: 

    • Larger initial expenses 
    • Moving parts need more maintenance 
    • Suitable for: 
    • Higher ROI and energy output utility-scale projects. 

3.5. Dual axis tracking system 

Dual-axis trackers offer maximum efficiency as they have two axes that allow panels to move horizontally and vertically to receive maximum sunlight. 

How it works: 

Panels move both horizontally and vertically, tracking the sun throughout the day and across seasons. 

Advantages: 

    • Increase in energy output 
    • Maximum solar exposure always 

Disadvantages: 

    • High cost and complexity 
    • Greater maintenance requirements 
    • Not economically viable for most large-scale projects 

Suitable for: 

Specialized applications where maximizing output outweighs cost concerns

  1. Design Considerations

There are few factors that affect the system’s performance, and the system needs to be designed after considering those factors. 

4.1. Land condition  

Mounting structure’s foundation and design are influenced by several factors such as terrain, soil type, wind speed, and seismic activity in any given region. 

4.2. Orientation and Tilt angle 

Tilt angles should be adjusted in such a position that it captures maximum solar radiation. In India, south-facing panels with a tilt angle close to the latitude generally perform the best. 

4.3. Choosing the Material  

Widely used materials are galvanized Iron and aluminum: 

Galvanized Iron offers strength and durability 

Aluminum is lightweight and corrosion-resistant 

4.4. Type of Foundation  

Concrete (RCC): Suitable for uneven and rocky land. 

Pile-driven foundations: suitable for large solar farms; cost-effective and quick to install 

Ballasted systems: Used where ground penetration is not possible 

4.5. Wind resistance 

Structures must be designed to withstand local wind speed and changes to prevent any damage due to extreme weather conditions. 

   5. Conclusion 

Finally, by carefully analyzing factors such as your location, budget, project size, and long-term output goals and going for an effectively engineered design, you can pick up your ideal design. This way, you can ensure the best durability, efficiency, and ROI on the project. 

Ground mounting structures are the most ideal option for solar parks because they generate more power, are easy to install, and require minimal maintenance. Fixed tilt structures are the most widely used option; additionally single-axis trackers are gaining popularity too because of their capacity to improve energy output significantly.