Various factors influence the electricity output of a photovoltaic power station, including the quality of photovoltaic modules, inverters, and cables, as well as the orientation and tilt of the modules, the presence of dust and shading, the compatibility of the module and. Various factors influence the electricity output of a photovoltaic power station, including the quality of photovoltaic modules, inverters, and cables, as well as the orientation and tilt of the modules, the presence of dust and shading, the compatibility of the module and. Environmental factors cause 70% of solar production issues: Weather, shading, and dirt accumulation are the most common culprits behind reduced solar output, making regular monitoring and maintenance essential for optimal performance. 8% annually: Quality solar panels. Objects like buildings, trees, or terrain that cast shadows on solar arrays greatly reduce electricity generation from shaded panels. Careful site selection and panel layouts optimized for minimal shading are essential. Fremont, CA: For investors in photovoltaic power plants, every extra kilowatt-hour of electricity produced translates into increased revenue.