The ground is generally divided into two types, cement surface and soil surface. So what kind of fixed foundation should we choose for these two different ground brackets?

One, the cement surface. If the thickness of the cement is greater than 100mm and the pullout resistance is sufficient, the base of the solar panel mount can be directly fixed to the ground with expansion screws. Otherwise, it is necessary to make a cement foundation. It had better to pour on site directly, and fix the solar mounting bracket on the cement pier. Which could increase the viscosity to improve the pullout resistance. 

Second, the soil surface. This depends on the firmness of the soil. For soils with higher hardness, cement pier foundations can be directly made and then fix brackets on them. For softer soil, it can adopt the ground screw foundation, or choose a piling type solar bracket and drill directly into the soil for about 2-3 meters.

Depending on the installation environment, you need to select the corresponding fixing scheme. As long as it is finally ensured that the photovoltaic power station as a whole will not be overturned or dented, it can stand neatly and stably on the ground for a long time.