A photovoltaic power station, also known as a solar park, solar farm, or solar power plant, is a large-scale grid-connected photovoltaic power system (PV system) designed for the supply of merchant power [...] filtration inside the electrical cabinet. In other cases, the inverter stations are contained inside large containers (i.e. 40’HC), in which room conditioning is provided. Here, instead of DTS cooling units [...] are commonly located in remote and isolated areas, often even in desert areas, they are exposed to large temperature variations. For this the inverter stations also need fan heaters that keep the inverters