Case Study: Accelerating Ground-Mount Solar Deployment with Flanged Helical Ground Screws in Argentina

For commercial and distributed ground-mounted solar projects across Argentina, civil foundation work is frequently the biggest bottleneck in the construction schedule. Traditional cast-in-place concrete footings require extensive excavation, formwork, pouring, and weeks of curing time before structural steel or aluminum racking can be erected.

In a recent ground-mounted PV installation in Argentina, the project engineering team bypassed these delays entirely by adopting hot-dip galvanized helical ground screws manufactured by Xiamen Wanhos Solar Technology Co., Ltd.

Site Conditions and Foundation Requirements

Located on open agricultural and grassland terrain in Argentina, the project required dozens of stable foundation points capable of withstanding high uplift and lateral wind forces across exposed plains. The local contractor needed a foundation solution that could be rapidly installed using mobile hydraulic rotary equipment, while providing an accurate, level mounting interface for the above-ground PV support frames already staged on site.

The Wanhos Flanged Ground Screw Solution

To meet the structural load and schedule demands, Wanhos supplied custom-engineered helical ground screws fabricated at our 20,000 m² manufacturing facility in China:

Continuous Helical Blade Design: Each ground screw features precision-formed continuous spiral blades welded onto a heavy-wall Q235B carbon steel shaft. As the hydraulic torque head rotates the pile into the soil, the helix compacts surrounding earth rather than loosening it, generating immediate pull-out and compression resistance.

Multi-Hole Top Flange Plate: The top of each pile is fitted with a thick, slotted steel flange plate. This design allows on-site crews to fine-tune alignment and bolt the ground-mount racking columns directly onto the foundation without field welding.

Heavy-Duty Hot-Dip Galvanization: Every pile undergoes full hot-dip galvanizing to strict thickness standards, ensuring multi-decade corrosion protection against underground moisture and soil minerals.

On-Site Efficiency and Compliance

Using a truck-mounted knuckle-boom crane fitted with a hydraulic auger drive and laser leveling tools, the Argentine crew drove rows of flanged piles directly into the soil with millimeter-level height consistency. Because no concrete curing was required, racking assembly began immediately behind the piling rig.

Backed by TÜV, CE, AS/NZS 1170, and ISO 9001 certifications, Wanhos Solar continues to supply custom helical ground screws and complete ground-mounting structures directly from our factory to B2B buyers and EPC contractors across Argentina and global markets.