Ground installation of photovoltaic panels is becoming more popular: let’s explore how best to create them
The surfaces change, but with Sun Ballast’s expertise and structures, the results are always up to code.
An increasing number of requests are coming in for ground-mounted photovoltaic systems.
At first glance, installing a system on this particular type of surface may seem more complicated than installations on the sheathing or gravel roofs that usually cover the flat roofs of industrial warehouses or city buildings, but Sun Ballast’s know-how and innovations make the difference here as well.
Let’s explore the basic steps for setting up a ground-mounted system of solar panels in the best way possible.
1) Clearing the land: excavation or turf removal?
Excavation and turf removal are two ways of levelling the ground to prepare it for the next steps of the process.
The difference between the two is a matter of depth.
Excavation involves the removal of a substantial amount of soil, up to a maximum of 20/30 cm, and the removal of shrubs and vegetation.
Turf removal, on the other hand, deals with a much more superficial level of soil, and is therefore recommended only for smaller installations.
2) Laying the non-woven fabric: the right material in the right place
The essential characteristic of non-woven fabric, exactly as the name suggests, is a lack of weft. Instead, the fibres are distributed randomly, allowing the fabric to not fray when cut and not rot in contact with the ground.
Use of this type of sheet fabric is crucial to avoid, or rather to slow as much as possible, the growth of vegetation that might hinder the productivity of the solar panels.
3) Filling with recycled material: the first layer
Recycled material in this case is defined as waste material from construction and other processes. Its characteristics make it perfect for creating an initial fill to replace the soil removed by excavation.
4) Filling with stabilised material: the final layer, in your choice of size and colour
Stabilised material is the last layer of preparation before setup of the photovoltaic system. Significantly less coarse than recycled material, this has more aesthetic appeal and can be made in various colours and sizes.