This paper examines the influences over performance of energy generate by various inverter types and the data collected in Maramures County, Romania. The influences on performance of these inverters varies based on location, angle of inclination, and geographical position. Each inverter is equipped with an application that enables users to monitor daily energy production, track real-time output, and review total production on a monthly or yearly basis. The analysis primarily focuses on the economic aspects of investing in photovoltaic (PV) systems, beginning with a productivity assessment using the PVGIS platform, which provides annual energy production forecasts. By comparing actual production data from installed PV systems with these predictions, we can more accurately assess the payback period of our renewable energy investment.