No Concrete, No Waiting
Piles drive straight into soil and the structure bolts on the same day — no excavation, formwork, or curing. Foundation time drops by up to 50% versus poured concrete.
Mounting Accessories
A ground screw foundation that replaces poured concrete under ground mount solar: hot-dip galvanized screw piles in five types, sized to your site's soil data. No digging, no curing — drive it in, mount the same day.
ZeroConcrete Needed
≥80μmGalvanized Layer
0Product Warranty
0Design Life
Ground Screws
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Overview
Megawa ground screws put a solar foundation in the ground without concrete. Each hot-dip galvanized steel pile drives straight into the soil — no excavation, no formwork, no curing time — so the mounting structure bolts on right after driving and foundation work moves up to 50% faster than poured footings. For EPC contractors, that turns the foundation from a multi-day trade into a same-day step. For distributors, it is a standard part that sells alongside every ground mount system.
Every dimension is built to order: pile length, diameter, wall thickness, and flange size are all customizable to the soil and the load, with a standard size in stock for typical ground-mount work. Five types cover the ground you'll actually meet: SE screws with or without flange for general soils, a spiral-blade pile that bites into softer ground, a double-blade pile for demanding soils and high uplift, and a double-flange heightening screw for raised connections. Capacity comes from data, not a single rating: the datasheet publishes pull-out and compression across soil N-values — the standard pile in clay at N=3 holds 5.017 kN pull-out and 6.182 kN compression — and every project is sized from its own soil survey.
The steel is carbon Q235B, hot-dip galvanized to DIN EN ISO 1461 with a zinc layer of 80μm or more, for a 25-30 year design life in the ground. Ground screws shine where concrete struggles — slopes, rocky and agricultural land, environmentally sensitive sites — and at end of life they back out and get reused, leaving no trace. Structural calculations to JIS C 8955 (Japan), ASCE/SEI 7 · IBC (US), or Eurocode EN 1991 (Europe) size each foundation, and the screws pair with Terra ground mounts, Demeter agrivoltaic and fence systems, and Titan carports — backed by a 12-year product warranty.
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Key Advantages
A Pile for Every Soil
SE, spiral-blade, double-blade, and heightening types in customizable lengths cover clay, sand, gravel, loose soils, slopes, and rocky or agricultural land — the pile matches the ground, not the other way around.
Galvanized for Decades
Q235B steel hot-dip galvanized to DIN EN ISO 1461 with a ≥80μm zinc layer holds off corrosion for a 25-30 year design life in the ground.
Leaves No Trace
No soil is excavated going in, and the screws back out and get reused when the array is decommissioned — the site returns to how it was.
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Technical Specifications
| Material | Carbon steel Q235B |
|---|---|
| Surface Treatment | Hot-dip galvanized (DIN EN ISO 1461), zinc layer ≥80μm |
| Pile Types | SE (flange / no flange) · Spiral blade · Double blade · Heightening (double flange) |
| Standard Length | 1600 mm (customizable ≈1200-3000 mm) |
| Pile Pipe Outer Diameter | 76 mm (customizable) |
| Flange Diameter | 200-220 mm (customizable) |
|---|---|
| Double-Blade Spec | Blade diameter 176 mm · thickness 5 mm |
| Load Design | Engineered per project — structural calculation per site soil survey |
| Design Life | 25-30 years |
| Warranty | 12 years |
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Key Components
SE Ground Screw (with flange)
The standard pile: a full-thread Ø76 mm galvanized steel screw with a 200 mm flange head that bolts directly to the mounting structure. Product no. SE-GS76-1600F-T3.0, 1600 mm standard length, for general soil conditions.
Carbon steel Q235B, hot-dip galvanized ≥80μm
SE Ground Screw (without flange)
A flangeless variant (SE-GS76-1600N-T3.0) that connects to the structure through a bolted bracket rather than a flange plate, giving more adjustment latitude on uneven or graded sites.
Carbon steel Q235B, hot-dip galvanized ≥80μm
Spiral Blade Ground Screw
A coarse-pitch spiral-blade pile (SE-HB76-1600F-T3.0) that bites into softer and looser soils, increasing pull-out resistance where a fine-thread screw would slip.
Carbon steel Q235B, hot-dip galvanized ≥80μm
Double Blade Ground Screw
A twin-blade pile with 176 mm diameter, 5 mm thick blades for maximum pull-out and compression capacity in demanding soils and high-uplift arrays.
Carbon steel Q235B, hot-dip galvanized ≥80μm
Representative components shown — full bill of materials available on request.
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Frequently Asked Questions
Yes. A solar ground screw is a hot-dip galvanized helical pile driven into the soil as a structural foundation. The datasheet publishes pull-out and compression capacity across soil N-values — the standard pile in clay at N=3 holds 5.017 kN pull-out and 6.182 kN compression — and each project is sized from its own soil survey, so the foundation carries the array's real wind, snow, and uplift loads.
For ground mount solar, usually. There is no excavation, formwork, or curing, so the structure installs right after driving — up to 50% faster — with far less soil disturbance. Concrete can still win in some rock or very loose soils, but on most sites a driven screw pile foundation matches concrete's holding capacity while cutting labor, waste, and schedule.
The Q235B steel is hot-dip galvanized to DIN EN ISO 1461 with a zinc layer of 80μm or more, for a 25-30 year design life — comparable to the array itself — and a 12-year product warranty. Because they are driven rather than cast, the screws can be removed and reused at decommissioning.
Most soils: clay, sand, gravel, and mixed terrain, plus slopes and agricultural land. Holding capacity depends on soil hardness, so a soil test (N-value) is recommended to set the pile type and length. Very loose or heavily rocky ground may call for a spiral- or double-blade type, a longer pile, or a different foundation.
Five types: SE with flange, SE without flange, spiral blade, double blade (twin Ø176 mm blades), and a double-flange heightening screw. The standard pile is Ø76 mm × 1600 mm with a 3.0 mm wall and Ø200 mm flange; length, diameter, wall, and flange are customizable from roughly 1200-3000 mm (MOQ applies for custom specs).
All of the ground-based lines: Terra AL, Terra ZAM, Terra FLEX, and Terra SP ground mounts; Demeter AGRO agrivoltaic frames and the Demeter DUAL solar fence; Titan carports; and the wire mesh fence. One foundation part across the family keeps sourcing simple — and they work under third-party structures too.
Yes. Length, diameter, wall thickness, flange, and coating are engineered to your soil and load case, and OEM/ODM supply is available for partners and distributors — including bulk packaging under your own brand. Send your soil data or target specs and we'll quote from there.
We provide driving guidance, drawings, and dedicated support through your build, and the structural calculation is available for industrial projects — sizing pull-out, compression, and lateral loads to JIS C 8955, ASCE/SEI 7 · IBC, or Eurocode EN 1991. Share your project details and we'll design and quote for your site.
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Downloads & Documentation
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