Now it gives me this error too:
"An error occurred while running the simulation and the simulation was terminated
Transient initialization, solving for consistent states with the modes of the model fixed, failed to converge. ...Nonlinear solver: failed to converge, residual norm too large. ......Here is the set of components with unconverged equations:
'bifacial_panel/Solar module (60 cells)/20 solarcell_up/10 solar cells1/Solar Cella' Equation location is: 'C:/Program Files/MATLAB/MATLAB Production Server/R2015a/toolbox/physmod/elec/elec/+elec/+sources/solar_cell_current.sscp'(no line number info)
'bifacial_panel/Solar module (60 cells)/20 solarcell_up/10 solar cells1/Solar Cella' Equation location is: 'C:/Program Files/MATLAB/MATLAB Production Server/R2015a/toolbox/physmod/simscape/library/m/+foundation/+physical_signal/+sources/constant.ssc' (line 21)
'bifacial_panel/Solar module (60 cells)/20 solarcell_up/10 solar cells1/Solar Cella' Equation location is: 'C:/Program Files/MATLAB/MATLAB Production Server/R2015a/toolbox/physmod/elec/elec/+elec/+semiconductors/exp_diode_base.sscp'(no line number info)
'bifacial_panel/Solar module (60 cells)/20 solarcell_up/10 solar cells1/Solar Cella' Equation location is: 'C:/Program Files/MATLAB/MATLAB Production Server/R2015a/toolbox/physmod/elec/elec/+elec/+semiconductors/exp_diode.sscp'(no line number info)
'bifacial_panel/Solar module (60 cells)/20 solarcell_up/10 solar cells1/Solar Cella1' Equation location is: 'C:/Program Files/MATLAB/MATLAB Production Server/R2015a/toolbox/physmod/elec/elec/+elec/+sources/solar_cell_current.sscp'(no line number info)"
However, I don't understand why, since the simulation has already run with other radiation values!