Screw Foundations / Ground Anchors / Screw-In Anchors for PV Trackers –
: The Fast, Stable, Concrete-Free, and Cost-Effective Solution
Screw-in foundations for PV trackers—the fast, stable, and concrete-free solution for modern solar projects.
Our galvanized steel screw foundations safely transfer high tensile, compressive, and horizontal loads into the ground
and enable the long-term, precise alignment of PV trackers—without any excavation, concrete, or
long wait times.
Thanks to the direct screw-in technique, the foundations can bear loads immediately, even on hard-to-reach construction sites
or in sensitive areas such as water protection zones. The robust screw anchor design with a welded thread ensures
maximum stability and a durable connection between the foundation and the tracker structure.
The mounting platform kit, which optionally includes 4 screw anchors (35 kN* each), ensures safe
load transfer and simple, quick installation. Ideal for PV trackers, hybrid systems, off-grid systems, and
all projects where reliability and efficiency are paramount. If necessary, a fifth
The screw foundation should be installed under the center of the platform (mounting holes are provided).
A cost-effective solution, since in many cases it is less expensive and less labor-intensive than a concrete foundation,
and, as an added benefit, it is also environmentally friendly and can be used in water protection areas.
Screw-in aid, on loan
We offer an electric screwdriver on loan.
This is included with your order—but only when purchased together with our screw foundations.
You have three full days to install the screw-in anchors.
Please return the device to us, undamaged and cleaned, no later than the 4th day.
You are responsible for the return shipping costs.
We will bill you separately for any necessary repairs or cleaning services—
—as well as for late returns.
Of course, you can screw piles by hand as well.
You can easily design a suitable lever yourself.
Benefits at a Glance
- Concrete-Free Deep Foundations – Eco-Friendly & Easy to Obtain Permits For
- Can bear loads immediately after installation
- High load-bearing capacity for PV trackers and solar structures
- Galvanized steel (galvanized coating thickness ≥ 80ym) for maximum service life
- Installation is possible without heavy machinery
- Ideal for hard-to-reach or sensitive locations
- Includes base kit & screw anchors (35 kN* each)
* The specified load-bearing capacity is based on soil classified as loam (
) or semi-cohesive (TL/TM) and is intended only for the initial selection of suitable screw foundations.
A final design requires on-site load testing.
We supply these products exclusively for the installation of foundations for our PV tracker systems.
If necessary, a fifth screw foundation can be installed beneath the center of the base plate (drill holes provided).
Legal Notice: The dimensions of these screw foundations are merely a recommendation,
which may require review by a qualified professional.
No structural analysis has been provided in accordance with the Construction Products Act, the Construction Products Ordinance,
relevant EC regulations, or the respective state building codes.
Please consult your local building authority in advance regarding the installation and operation of freestanding PV systems.
We (Deichturbinen Thomas Bauer) hereby disclaim any liability for systems installed in violation of the law
or due to structural defects resulting from insufficient soil bearing capacity.
