Over the past few years, the increase in the installed capacity of photovoltaic power plants in the world has been around 50% per year. There is great interest in the construction of larger photovoltaic power plants, in the order of 1-5 MWp, in Croatia as well, despite the still undefined regulatory framework for such large photovoltaic power plants. The paper presents the basic elements of a large photovoltaic power plant, its typical configuration, the method of connection to the distribution network, and the analysis of possible operating influences.