PVfit
: Double Diode Equation (DDE)
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DDE Calibration at One Irradiance and Temperature (beta)
Input: I-V Curve Data
Load Example Data
Enter data with at least five well-distributed points then click COMPUTE FIT
Voltage Data (V)
Current Data (A)
Number of Cells in Series in Each Parallel String
Cell Temperature (°C)
Output: Computed Model Fit
Compute Fit
Primary model parameters
Photocurrent (A)
1st Reverse-Saturation Current (A)
1st Modified Ideality Factor (V)
2nd Reverse-Saturation Current (A)
2nd Modified Ideality Factor (V)
Series Resistance (Ω)
Parallel Conductance (S)
Derived model parameters
Short-Circuit Current (A)
Resistance at Short Circuit (Ω)
Current at Maximum Power (A)
Maximum Power (W)
Voltage at Maximum Power (V)
Resistance at Open Circuit (Ω)
Open-Circuit Voltage (V)
Fill Factor (·)
1st Ideality Factor (·)
2nd Ideality Factor (·)
Other fit information
Timestamp (UTC)
Root-Mean-Square Deviation, Normalized by Photocurrent (·)
Mean Bias Deviation, Normalized by Photocurrent (·)
Residuals (A)
Message