The performance of PV system, which determines or the final AC power available for the utility grid, is a function of the global solar irradiance and other factors, such as:
- GHI to POA ratio
- Far shading
- Inter-shading
- IAM
- Soiling
- Snow
- Low irradiance
- Temperature
- Module quality
- Mismatch
- Inverter efficiency
- Power clipping
- Wiring
- Transformer
- Dispatch
- PID
- Light soaking
- Aging
