Free Online Degradation & Insolation Corrected CUF Calculator
Our free online solar CUF calculator helps you calculate a more accurate CUF (Capacity Utilization Factor) by accounting for real-world factors like solar panel degradation and insolation variation over time. Follow the steps below to use it effectively:
- Enter Energy Generated (kWh): Provide the total actual energy output during the selected period.
- Enter Plant Capacity (kWp): This is the rated capacity of your solar plant.
- Enter Panel Degradation Rate (%): Typical values are 0.5% to 1% per year.
- Specify Number of Days: Total number of days in the period (e.g., 30 for a month, 365 for a year).
- Enter Expected Insolation (kWh/m²): Historical or predicted average solar irradiance for your region.
- Enter Actual Insolation (kWh/m²): Real insolation measured during the period.
- Enter Plant Age (Years): Number of years since commissioning of your solar plant.
- Click “Calculate”: This tool computes the Degradation & Insolation Corrected CUF.
The Degradation & Insolation corrected CUF adjusts the
conventional CUF to reflect what the system's performance would
have been, had the system been:
– At its rated (non-degraded) efficiency
– Operating under expected solar irradiance conditions