Gms Vs Rooftop

Ground Mounting Structure VS Rooftop Solar Structure

  1. GMS Vs Rooftop

With the rising adoption of Solar power systems all over India, different types of mounting structures are becoming widely installed. There are two types of the most commonly used structures: Ground-mounted structures (GMS) and Rooftop solar structures. 

Each type has its own pros and cons. 

In this blog, we’ll compare GMS and rooftop solar structures to help you decide which option best suits your needs. 

Factors GMS Table Rooftop
Location
Installed in open space
Installed on rooftops
Cost
Comparatively costlier
Comparatively cheaper
Output efficiency
Highly efficient as optimized for full sunlight
Less efficient than GMS as sometimes does not receive full sunlight
Space
Requires larger space
Requires smaller space such as rooftop
Scalability
Highly scalable
Less scalable as limited by space
Maintenance
Easier to maintain
Less easy to maintain
Installation time
Takes longer to install
Faster installation
Strength and durability
Highly durable as it is fixed onto the ground
Depends on the roof conditions and its load bearing capacity
Gms vs rooftop solar
  2. What is Ground Mounting Structure (GMS)? 

A solar setup where panels are mounted on structures that are fixed to the ground directly. 

These systems are commonly used in large-scale solar parks, utility-grade projects, and expansive commercial installations. 

  3. What is a Rooftop Solar Structure? 

Rooftop Solar Structure is mounted on the roofs of residential, commercial, or industrial buildings, using the available roof space to produce electricity without requiring extra land. 

  4. Why install Ground Mounting Structures (GMS)?

  • High energy generation capacity 
  • Easy to maintain and clean 
  • Design and orientation flexibility 
  • Integrated tracking systems for higher energy output 
  • best option for large-scale projects 

   5. Why install Rooftop Solar Structures?

  • Lesser initial investment 
  • Faster installation 
  • No need for any additional land 
  • Best option for smaller areas 

   6. When Should You Choose GMS? 

GMS is the best choice if: 

  • You have large open land 
  • High efficiency and scalability are needed 
  • Planning a solar park project or a large utility project. 
  • You want to integrate solar tracking systems 

    7. When Should You Choose Rooftop Solar? 

Rooftop solar is the best choice if: 

  • Limited land availability 
  • You want to utilize your roof space 
  • Looking for a cost-efficient solution 
  • Your energy consumption is less 

   8. Challenges of GMS: 

  • Extra land acquisition is needed so there is an additional cost 
  • Higher initial investment 
  • Permit and land approvals needed 

   9. Challenges of Rooftop: 

  • Roof strength limitations 
  • less space and its constraints 
  • Shading issues from nearby structures 
  • Less power generation due to shading issues 

   10. Conclusion 

Both GMS and rooftop solar structures come with their own set of benefits and challenges; the best option depends on your specific project needs, budget, and space availability. 

In the end, choosing the right structure is about finding the correct balance between cost, efficiency, and overall output. Understanding these differences will help you make a well-informed decision and get the most value out of your solar investment. 

FAQs

1. Which one out of Ground Mounted Structures (GMS) or Rooftop structures is cheaper?

For a utility-scale IPP generating hundreds of megawatts or gigawatts, ground-mounted becomes more cost-efficient per unit of energy despite the higher upfront infrastructure cost. GMS often becomes cheaper when per unit of energy is generated at a large scale because panels can be optimally adjusted and aligned to face the sun the entire day to receive maximum sunlight, generating more energy. Also, panels and equipment are procured in bulk, which drives costs down. 

For a homeowner, smaller projects or a factory, a rooftop installation is cheaper and simpler because a rooftop does not need new land and can easily be installed within the roof spac

2. Which one out of Ground Mounted Structures (GMS) or Rooftop structures generates more power?

GMS generates higher total power and energy output per panel because of its better tilt and tracking facility. Usually, it optimizes its position according to the Sun’s changing positions to receive maximum sunlight throughout the day and its entire lifespan, generating more energy output. 

Furthermore, Ground Mounted Structures are built on open land, free from shading obstructions from adjacent buildings that commonly reduce the efficiency of rooftop panels. GMS panels also benefit from better natural airflow around them, keeping the panels cooler and performing at a higher efficiency, since solar panels are known to lose output as their temperature rises. This combination of optimal tilt, shade-free position, and intelligent tracking makes GMS the best choice when the primary goal is maximum power generation. 

3. Do you also provide maintenance after installation?

Absolutely! Our commitment to you doesn’t end the moment the system is installed.  We are with you at every step along the way — even after the work on the ground is done. 

We offer maintenance in the form of our AMCs, i.e., Annual Maintenance Contracts.  

We offer comprehensive post-installation support through our dedicated team — an excellent group of trained, experienced solar technicians and engineers whose sole focus is keeping your system running smoothly at its best throughout its entire lifespan. 

Maintenance support services offered by us include: 

  • Annual Maintenance Contracts (AMCs) — a structured, hassle-free agreement where we take full responsibility for your system’s upkeep on an annual basis.  
  • Routine inspections to ensure every panel, inverter, cable, and connection is performing as it should. 
  • Preventive regular cleaning of panels, tightening of mounts, and firmware updates to keep efficiency at its peak. 
  • Technical support when you have a question or concern, as our support team is just a call or message away. 

With our AMC, you don’t need to worry about the maintenance of the installed systems. We handle it for you, so you can relax. 

4. Is a permit required for Ground Mounted Structures (GMS)?

Yes, proper land documents and other local permits and approvals are needed for the installation of Ground Mounted Structures (GMS). Once all approvals are granted, the installation is easily completed by our installation team quickly.