A statistical subset of 385 PV modules was extracted from 10,413 silicon single-sided PV Modules from the California Solar Equipment database.
From the PV characteristic of the number of series PC cells Ns, open circuit voltage Voc, maximum power voltage Vmp, maximum power current Imp, and short circuit current Is, the solutions from the 5 Parameter Model were found for each.
5 parameter values: diode ideality factor η, series resistance Rs, parallel resistance Rp, photon light current IL, and diode reverse saturation current Io.
Method to plot PV i-V and power curve without solving the standard PV transcendental equation
Spreadsheet to show error calculations for a new manuscript, "Error Checking Methodology to Verify PV Module Parameter Solutions," submitted to IEEE PV
Analysis of Kyocera KC200GT PV Module with datasheet and constant values in cells B3 to G5.
Numerical solution parameter values from 20 sources are shown in cells B10 to G29.
Calculations and error analysis with equations are shown in the spreadsheet. See the manuscript for details
Spreadsheet use for conversion of visible light lux measurements to irradiance.
Back up for manuscript: Calculation of Visible Light Irradiance from Lux Illuminance and Relative Spectral Illuminance
The standard for measurement of solar irradiance utilizes the units of watts per meter squared (W/m2). Irradiance meters are both costly and limited in the ability to measure low irradiance values. With a lower cost and higher sensitivity in low light conditions, light meters measure luminous flux per unit area (illuminance) utilizing the units of lumens per meter squared or lux (lx).
The standard for measurement of solar irradiance utilizes the units of watts per meter squared (W/m2). Irradiance meters are both costly and limited in the ability to measure low irradiance values. With a lower cost and higher sensitivity in low light conditions, light meters measure illuminance utilizing the unit of Lux. A conversion factor would enable the use of light meters to evaluate PV performance under low solar irradiance conditions. This conversion is a supplement to Luminous Efficacy that compares atmospheric light in units of lumens to solar irradiance in un