Ground-mounting structures for PV modules are the easiest type of mounting structure to install, and optimal inclination angles and orientation can be achieved. The PV modules do not have to be lifted onto a roof and access for maintenance and repair is also easy, but may require heavy machinery for trenches and foundations.
Ground-mounting structure for PV modules. Ground mounts are usually the easiest to install and maintain – access is easy for cleaning the modules (when required) and for carrying out regular inspections and repairs. Ground mounts also provide good airflow/ventilation; high module temperatures reduce electricity output. Smaller ground-mounting structures are also available.
Installing PV modules at ground level also makes it easier to avoid shading by buildings, other structures and trees. However, there needs to be enough distance between the rows of PV modules so that they do not shade each other.
Structures are usually made of galvanised steel, but also aluminium. Common methods of fixing structures to the ground include concrete foundations, concrete piers, ground screws or ram foundations. A ground survey is usually necessary to choose an adequate method.
The installation should be in a fenced enclosure to prevent unauthorised access and protect against theft. Cables should be laid in conduits or trunking to protect them against UV radiation and the environment.