Yingli Energy (China) YL445DF72 1/2

Mono-c-Si Bifacial
444.636 W Pmax
49.6 V Voc
11.36 A Isc
41.4 V Vmp
10.74 A Imp
20.97 % eff.
0.7891 FF
144 cells
IV curves not yet precomputed for this module. Run python manage.py precompute_iv_curves to generate them.
CEC Single-Diode Model Parameters
Parameter Symbol Value Unit
Nameplate (STC)
STC Power STC 444.636 W
PTC Power PTC 418.4 W
Open-circuit voltage V_oc_ref 49.6 V
Short-circuit current I_sc_ref 11.36 A
Max-power voltage V_mp_ref 41.4 V
Max-power current I_mp_ref 10.74 A
Fill factor FF 0.7891
Efficiency (STC) η 20.97 %
Temperature Coefficients
Isc temperature coefficient alpha_sc 0.004544 A/°C
Voc temperature coefficient beta_oc -0.129952 V/°C
Pmax temperature coefficient gamma_r -0.331 %/°C
NOCT T_NOCT 44.0 °C
CEC Single-Diode (De Soto) Parameters
Modified ideality factor a_ref 1.83593 V
Light-generated current (ref) I_L_ref 11.8603 A
Saturation current (ref) I_o_ref A
Series resistance R_s 0.22571 Ω
Shunt resistance (ref) R_sh_ref 68.34 Ω
Cells in series N_s 144
CEC Adjust factor Adjust 8.6777 %
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Module Specifications
Technology Mono-c-Si
Bifacial Yes
BIPV No
Cells in series 144
Module area 2.12 m²
NOCT 44.0 °C
CEC listing date 11/16/2022
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