PV System Performance The performance of a solar PV system, which determines the final AC power available for the utility grid, is a function of the global solar irradiance and a series of loss factors. The following pages explain each factor in detail. | Other performance factors Performance Soiling Inverter Loss PID GHI to POA Low Irradiance Power Clipping Light Soaking Far Shading Temperature Wiring Loss Aging Inter-Shading Module Quality Transformer Power consumption IAM Mismatch Dispatch Summary