Power of the photovoltaic installation – correct selection
In order to achieve the highest savings from photovoltaics, the size of the photovoltaic installation should be appropriately matched to the electricity demand. When selecting the power of the photovoltaic installation, both power consumption and other factors such as installation location (including orientation relative to the cardinal directions, shading, surface area), time and level of self-consumption of the produced energy, as well as the investment plans of the company or agricultural household that may affect energy demand, should be taken into account. Therefore, it is very important for the calculations regarding the size of the installation to be made by a specialist.
However, what happens in the case of improperly sized installations? Too small a capacity will not sufficiently reduce electricity bills, thereby lowering the profitability of the investment, while too large a capacity means prolonging the payback period of the investment.