Choosing the right foundation is key to success. It doesn’t matter whether you're installing panels on farmland or on more challenging, marshy terrain — the foundation type will determine the system's long-term efficiency. And its costs.

Let’s start with a brief overview of systems. Classic, stationary constructions remain the most popular — usually facing south and set at a fixed angle. A simple solution that works well in the right location.

However, bifacial systems — double-sided panels — are being discussed more and more. By reflecting light from a bright surface, they can increase energy production by several percent. So, if you're installing panels on gravel or concrete, this option is worth considering.

Another category includes trackers — solar tracking systems that automatically adjust the angle of the panels depending on the sun’s position. Great for large farms, but they require more advanced installation and — of course — a more stable foundation.

Regardless of the system type, one thing is certain: a foundation for solar panels must be solid. And properly adapted to local conditions. Luckily, this doesn’t always mean heavy concrete and waiting weeks for it to cure.

Concrete-free foundations are becoming more and more popular — fast to install, eco-friendly, and durable. We’re talking mainly about ground screws, which can be driven into the soil like screws into wood. Sounds simple? Because it is.

Ground screws (e.g. from manufacturer Winkelmann Group) are ideal for fast-track projects, even on difficult terrain — be it a rocky slope or soggy meadow. They allow the entire structure to be anchored without disrupting the ground or needing excavations.

There’s no one-size-fits-all solution. That’s why, before installation, it’s worth assessing:

• Soil type – for hard or rocky soils, concrete foundations work best. For peat or sandy soils, screw foundations have significant advantage.

• Terrain slope – on flat fields, you have more options. On slopes, don’t risk it — only screw foundations provide the needed stability.

• Groundwater level – here again, concrete-free systems win, avoiding the risk of washout. Alternatively, precast concrete blocks with proper drainage can be used.

• Climate impact – in areas with strong wind or heavy snow, steel-pile foundations perform best under dynamic loads.

You don’t have to compromise on quality to save money. The cheapest foundations for ground-mounted photovoltaics are those that save time and don’t require heavy machinery. And in this category, screw foundations are the undisputed winner.

What’s more, many of these systems are mobile — they can be dismantled and reused. A huge advantage in times when flexibility and relocatability are key. For farmers or seasonal investors, this is a game-changer.

If you’re looking for a solution that combines durability, sustainability, and ease of installation, Winkelmann’s ground screw foundations are worth a closer look. This screw pile manufacturer focuses not only on material quality, but also on local production and technical support.

These systems are suitable not only for PV farms, but also for modular homes, temporary halls, or agrovoltaic setups. Their versatility benefits both individual investors and construction companies.

An investment in durability, safety, and efficiency. Whether it’s a pile foundation, pad footing, or ground screw — the choice is yours. One thing’s certain: today’s technology offers more options than ever before.

Have questions? Looking for a specific solution? Check out modern concrete-free foundations and discover how easy it is to build a solid structure — no digging, no stress, and no compromises.

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