Photovoltaic Gabion: the sustainable foundation that is transforming solar projects on complex terrain

At a time when the photovoltaic sector is seeking increasingly efficient and environmentally respectful solutions, the photovoltaic gabion is emerging as a strategic alternative for the foundation of solar structures on challenging terrain. This technology—still not widely known but with enormous potential—is enabling solar projects that were previously ruled out due to technical limitations to become fully viable today.

At UNIVERSAL, we have spent years perfecting this no-excavation foundation solution, specially designed for environments where piling or drilling is not an option. The result is a robust, versatile system aligned with the sustainability criteria required for the energy transition.

What exactly is a photovoltaic gabion?

A gabion is a ballasted metal foundation that completely replaces the use of concrete and avoids invasive intervention in the ground. Its modular design provides weight, stability, and wind resistance, creating a reliable base for fixed structures and solar trackers without the need to excavate or alter the subsoil.

This feature makes the gabion a low-impact, environmentally friendly solution, ideal for projects that need to preserve the terrain, comply with archaeological restrictions, or avoid the risk of soil contamination.

Where the solar gabion is essential

Its versatility positions it as one of the best photovoltaic foundation options for complex terrain, especially in:

• Areas with archaeological or heritage remains, where excavation is not permitted

• Land with geomembranes, such as sealed landfills or treatment ponds

• Reduced-access areas where heavy machinery cannot operate

• Potentially contaminated soils, where drilling is not an option

• Projects with stringent environmental requirements and a need to minimize ecological footprint

  
  

By enabling the deployment of solar parks on land traditionally ruled out, the photovoltaic gabion significantly expands the sector’s development possibilities.

Key advantages of the gabion as a photovoltaic foundation

1. Minimal impact on the terrain

   Its no-excavation installation avoids modifying the subsoil and protects any elements that may exist beneath the surface, particularly in sensitive environments.

2. Elimination of concrete

   Thanks to its ballasted support structure, which replaces concrete footings, it minimizes environmental impact, optimizes installation time, and allows complete removal without leaving permanent residues in the soil.

3. Fast and flexible installation

   The modular system makes it possible to work with lightweight equipment, even in areas inaccessible to conventional machinery.

4. Compatible with any photovoltaic structure

   From fixed structures to next-generation solar trackers, the gabion adapts to any engineering design or project typology.

5. Outstanding structural performance

   Its weight and geometry provide excellent stability even in environments with extreme winds or challenging weather conditions.

Why the gabion will shape the future of photovoltaic foundations

The expansion of solar energy no longer depends solely on the availability of suitable land, but on our ability to adapt to surfaces with technical, geotechnical, or environmental constraints. In this context, the photovoltaic gabion stands out as an essential tool to:

• Make use of underutilized land

• Comply with strict environmental regulations

• Reduce the ecological footprint of projects

• Accelerate execution without compromising structural safety

At UNIVERSAL, we continue to drive sustainable foundation solutions capable of bringing solar energy to any type of terrain with full technical assurance and maximum operational efficiency.