Reasonable types of photovoltaic support can improve the system's ability to withstand wind and snow loads, and the reasonable use of the characteristics of the photovoltaic support system in bearing capacity can further optimize its size parameters, save materials and contribute to reducing the cost of the photovoltaic system.

The loads acting on the basis of the PV module carrier mainly include: the weight of the carrier and the PV module (constant load), the wind load, the snow load, the temperature and the seismic load. The important influential factor is the wind load. Therefore, the design of the foundation should ensure the stability of the foundation under the action of the wind load. Under the action of the wind load, the foundation can be damaged like uplift and fracture. The design of the foundation must be able to ensure the strength here, there is no damage underneath.

One of the foundations of the photovoltaic support on the ground: steel spiral foundation

It is convenient to make holes, and the elevation of the upper surface can be adjusted according to the terrain, and it is not affected by groundwater. Construction is carried out as usual in winter weather conditions, Construction is fast, elevation adjustment is flexible, and damage to the natural environment is low. Small, no leveling is required. Suitable for deserts, meadows, mudflats, neighboring walls, frozen ground, etc. However, steel is relatively large and not suitable for heavily corrosive foundations and rock foundations.

It is piled into the ground by special machines, the construction speed is fast, there is no need for site leveling, no earthworks and no concrete, to maximize the protection of vegetation on the ground, the height of the stand can be adjusted according to the terrain, and the spiral stack can be used twice.